./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-11.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b2c8156-a8b6-4076-9532-79e762fd0909/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b2c8156-a8b6-4076-9532-79e762fd0909/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b2c8156-a8b6-4076-9532-79e762fd0909/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b2c8156-a8b6-4076-9532-79e762fd0909/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-11.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b2c8156-a8b6-4076-9532-79e762fd0909/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b2c8156-a8b6-4076-9532-79e762fd0909/bin/utaipan-verify-nQ1chXbOIh --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 2c04fa9e35f4863ffa3e38fc942000589ae498f8db4e626f7ee6fb3d8c4e793d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 15:13:59,384 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 15:13:59,450 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b2c8156-a8b6-4076-9532-79e762fd0909/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 15:13:59,455 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 15:13:59,455 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 15:13:59,478 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 15:13:59,479 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 15:13:59,479 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 15:13:59,480 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 15:13:59,480 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 15:13:59,481 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 15:13:59,481 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 15:13:59,482 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 15:13:59,482 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 15:13:59,483 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 15:13:59,483 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 15:13:59,484 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 15:13:59,484 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 15:13:59,485 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 15:13:59,485 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 15:13:59,486 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 15:13:59,490 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 15:13:59,491 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 15:13:59,492 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 15:13:59,492 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 15:13:59,492 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 15:13:59,493 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 15:13:59,493 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 15:13:59,493 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 15:13:59,494 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 15:13:59,494 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 15:13:59,495 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 15:13:59,495 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 15:13:59,495 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 15:13:59,495 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 15:13:59,496 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 15:13:59,496 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 15:13:59,496 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:13:59,496 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 15:13:59,496 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 15:13:59,497 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 15:13:59,497 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 15:13:59,497 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 15:13:59,497 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 15:13:59,498 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 15:13:59,498 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 15:13:59,498 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 15:13:59,498 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_8b2c8156-a8b6-4076-9532-79e762fd0909/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b2c8156-a8b6-4076-9532-79e762fd0909/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c04fa9e35f4863ffa3e38fc942000589ae498f8db4e626f7ee6fb3d8c4e793d [2023-12-02 15:13:59,741 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 15:13:59,761 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 15:13:59,763 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 15:13:59,764 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 15:13:59,765 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 15:13:59,766 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b2c8156-a8b6-4076-9532-79e762fd0909/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-11.i [2023-12-02 15:14:02,499 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 15:14:02,676 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 15:14:02,677 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b2c8156-a8b6-4076-9532-79e762fd0909/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-11.i [2023-12-02 15:14:02,685 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b2c8156-a8b6-4076-9532-79e762fd0909/bin/utaipan-verify-nQ1chXbOIh/data/419e70c00/c9ceb77c1b544459bcc3d24ce4e10aec/FLAG85641cad0 [2023-12-02 15:14:02,696 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b2c8156-a8b6-4076-9532-79e762fd0909/bin/utaipan-verify-nQ1chXbOIh/data/419e70c00/c9ceb77c1b544459bcc3d24ce4e10aec [2023-12-02 15:14:02,698 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 15:14:02,699 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 15:14:02,700 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 15:14:02,700 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 15:14:02,704 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 15:14:02,705 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:14:02" (1/1) ... [2023-12-02 15:14:02,706 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66664e96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:14:02, skipping insertion in model container [2023-12-02 15:14:02,706 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:14:02" (1/1) ... [2023-12-02 15:14:02,730 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 15:14:02,850 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_8b2c8156-a8b6-4076-9532-79e762fd0909/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-11.i[916,929] [2023-12-02 15:14:02,893 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:14:02,904 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 15:14:02,914 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_8b2c8156-a8b6-4076-9532-79e762fd0909/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-11.i[916,929] [2023-12-02 15:14:02,939 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:14:02,952 INFO L206 MainTranslator]: Completed translation [2023-12-02 15:14:02,953 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:14:02 WrapperNode [2023-12-02 15:14:02,953 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 15:14:02,954 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 15:14:02,954 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 15:14:02,954 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 15:14:02,960 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:14:02" (1/1) ... [2023-12-02 15:14:02,968 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:14:02" (1/1) ... [2023-12-02 15:14:03,004 INFO L138 Inliner]: procedures = 26, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 121 [2023-12-02 15:14:03,004 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 15:14:03,005 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 15:14:03,005 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 15:14:03,005 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 15:14:03,015 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:14:02" (1/1) ... [2023-12-02 15:14:03,015 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:14:02" (1/1) ... [2023-12-02 15:14:03,018 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:14:02" (1/1) ... [2023-12-02 15:14:03,018 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:14:02" (1/1) ... [2023-12-02 15:14:03,028 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:14:02" (1/1) ... [2023-12-02 15:14:03,032 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:14:02" (1/1) ... [2023-12-02 15:14:03,035 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:14:02" (1/1) ... [2023-12-02 15:14:03,037 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:14:02" (1/1) ... [2023-12-02 15:14:03,041 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 15:14:03,042 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 15:14:03,042 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 15:14:03,042 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 15:14:03,043 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:14:02" (1/1) ... [2023-12-02 15:14:03,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:14:03,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b2c8156-a8b6-4076-9532-79e762fd0909/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:14:03,074 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b2c8156-a8b6-4076-9532-79e762fd0909/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 15:14:03,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b2c8156-a8b6-4076-9532-79e762fd0909/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 15:14:03,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 15:14:03,104 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 15:14:03,104 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 15:14:03,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 15:14:03,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 15:14:03,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 15:14:03,175 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 15:14:03,178 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 15:14:03,415 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 15:14:03,512 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 15:14:03,512 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 15:14:03,514 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:14:03 BoogieIcfgContainer [2023-12-02 15:14:03,514 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 15:14:03,517 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 15:14:03,517 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 15:14:03,519 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 15:14:03,520 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:14:02" (1/3) ... [2023-12-02 15:14:03,520 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4defcc24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:14:03, skipping insertion in model container [2023-12-02 15:14:03,520 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:14:02" (2/3) ... [2023-12-02 15:14:03,521 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4defcc24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:14:03, skipping insertion in model container [2023-12-02 15:14:03,521 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:14:03" (3/3) ... [2023-12-02 15:14:03,522 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-11.i [2023-12-02 15:14:03,542 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 15:14:03,543 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 15:14:03,608 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 15:14:03,615 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;@6df6d30d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 15:14:03,616 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 15:14:03,620 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-02 15:14:03,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-02 15:14:03,631 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:14:03,632 INFO L195 NwaCegarLoop]: trace histogram [20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:14:03,644 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:14:03,650 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:14:03,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1411890040, now seen corresponding path program 1 times [2023-12-02 15:14:03,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:14:03,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386234158] [2023-12-02 15:14:03,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:14:03,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:14:03,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 15:14:03,934 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 15:14:04,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 15:14:04,104 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 15:14:04,106 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 15:14:04,107 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 15:14:04,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 15:14:04,114 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 15:14:04,118 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 15:14:04,185 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 03:14:04 BoogieIcfgContainer [2023-12-02 15:14:04,185 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 15:14:04,186 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 15:14:04,186 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 15:14:04,186 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 15:14:04,186 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:14:03" (3/4) ... [2023-12-02 15:14:04,188 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 15:14:04,189 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 15:14:04,190 INFO L158 Benchmark]: Toolchain (without parser) took 1491.00ms. Allocated memory is still 142.6MB. Free memory was 103.5MB in the beginning and 73.9MB in the end (delta: 29.6MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB. [2023-12-02 15:14:04,191 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 102.8MB. Free memory is still 78.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 15:14:04,191 INFO L158 Benchmark]: CACSL2BoogieTranslator took 253.27ms. Allocated memory is still 142.6MB. Free memory was 103.0MB in the beginning and 90.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-02 15:14:04,192 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.54ms. Allocated memory is still 142.6MB. Free memory was 90.4MB in the beginning and 87.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 15:14:04,192 INFO L158 Benchmark]: Boogie Preprocessor took 35.93ms. Allocated memory is still 142.6MB. Free memory was 87.3MB in the beginning and 85.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 15:14:04,193 INFO L158 Benchmark]: RCFGBuilder took 472.41ms. Allocated memory is still 142.6MB. Free memory was 85.7MB in the beginning and 60.6MB in the end (delta: 25.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-12-02 15:14:04,194 INFO L158 Benchmark]: TraceAbstraction took 668.67ms. Allocated memory is still 142.6MB. Free memory was 59.5MB in the beginning and 73.9MB in the end (delta: -14.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 15:14:04,194 INFO L158 Benchmark]: Witness Printer took 3.40ms. Allocated memory is still 142.6MB. Free memory was 73.9MB in the beginning and 73.9MB in the end (delta: 2.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 15:14:04,197 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 102.8MB. Free memory is still 78.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 253.27ms. Allocated memory is still 142.6MB. Free memory was 103.0MB in the beginning and 90.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.54ms. Allocated memory is still 142.6MB. Free memory was 90.4MB in the beginning and 87.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.93ms. Allocated memory is still 142.6MB. Free memory was 87.3MB in the beginning and 85.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 472.41ms. Allocated memory is still 142.6MB. Free memory was 85.7MB in the beginning and 60.6MB in the end (delta: 25.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 668.67ms. Allocated memory is still 142.6MB. Free memory was 59.5MB in the beginning and 73.9MB in the end (delta: -14.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.40ms. Allocated memory is still 142.6MB. Free memory was 73.9MB in the beginning and 73.9MB in the end (delta: 2.6kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: 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 to_int at line 43, overapproximation of someBinaryDOUBLEComparisonOperation at line 53. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed char var_1_1 = -16; [L23] signed long int var_1_2 = 50; [L24] signed long int var_1_3 = 7; [L25] signed char var_1_7 = 10; [L26] signed long int var_1_8 = 32; [L27] signed long int var_1_9 = 1000000; [L28] signed long int var_1_10 = 2; [L29] unsigned char var_1_11 = 1; [L30] unsigned char var_1_12 = 1; [L31] unsigned char var_1_13 = 1; [L32] unsigned char var_1_14 = 5; [L33] unsigned char var_1_15 = 200; [L34] unsigned char var_1_16 = 10; [L35] unsigned char var_1_17 = 1; [L36] unsigned char last_1_var_1_11 = 1; [L108] isInitial = 1 [L109] FCALL initially() [L110] COND TRUE 1 [L111] CALL updateLastVariables() [L101] last_1_var_1_11 = var_1_11 [L111] RET updateLastVariables() [L112] CALL updateVariables() [L69] var_1_2 = __VERIFIER_nondet_long() [L70] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_10=2, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=7, var_1_7=10, var_1_8=32, var_1_9=1000000] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, last_1_var_1_11=1, var_1_10=2, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=7, var_1_7=10, var_1_8=32, var_1_9=1000000] [L71] CALL assume_abort_if_not(var_1_2 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_10=2, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=7, var_1_7=10, var_1_8=32, var_1_9=1000000] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_2 <= 2147483647) VAL [isInitial=1, last_1_var_1_11=1, var_1_10=2, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=7, var_1_7=10, var_1_8=32, var_1_9=1000000] [L72] var_1_3 = __VERIFIER_nondet_long() [L73] CALL assume_abort_if_not(var_1_3 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_10=2, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=10, var_1_8=32, var_1_9=1000000] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(var_1_3 >= -2147483648) VAL [isInitial=1, last_1_var_1_11=1, var_1_10=2, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=10, var_1_8=32, var_1_9=1000000] [L74] CALL assume_abort_if_not(var_1_3 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_10=2, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=10, var_1_8=32, var_1_9=1000000] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_3 <= 2147483647) VAL [isInitial=1, last_1_var_1_11=1, var_1_10=2, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=10, var_1_8=32, var_1_9=1000000] [L75] var_1_7 = __VERIFIER_nondet_char() [L76] CALL assume_abort_if_not(var_1_7 >= -127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_10=2, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=1000000] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not(var_1_7 >= -127) VAL [isInitial=1, last_1_var_1_11=1, var_1_10=2, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=1000000] [L77] CALL assume_abort_if_not(var_1_7 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_10=2, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=1000000] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(var_1_7 <= 126) VAL [isInitial=1, last_1_var_1_11=1, var_1_10=2, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=1000000] [L78] var_1_9 = __VERIFIER_nondet_long() [L79] CALL assume_abort_if_not(var_1_9 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_10=2, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=32] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not(var_1_9 >= -2147483648) VAL [isInitial=1, last_1_var_1_11=1, var_1_10=2, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=32] [L80] CALL assume_abort_if_not(var_1_9 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_10=2, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=32] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(var_1_9 <= 2147483647) VAL [isInitial=1, last_1_var_1_11=1, var_1_10=2, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=32] [L81] var_1_10 = __VERIFIER_nondet_long() [L82] CALL assume_abort_if_not(var_1_10 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=32] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not(var_1_10 >= -2147483648) VAL [isInitial=1, last_1_var_1_11=1, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=32] [L83] CALL assume_abort_if_not(var_1_10 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=32] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(var_1_10 <= 2147483647) VAL [isInitial=1, last_1_var_1_11=1, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=32] [L84] var_1_12 = __VERIFIER_nondet_uchar() [L85] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_10=0, var_1_11=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=32] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, last_1_var_1_11=1, var_1_10=0, var_1_11=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=32] [L86] CALL assume_abort_if_not(var_1_12 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=32] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not(var_1_12 <= 1) VAL [isInitial=1, last_1_var_1_11=1, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=32] [L87] var_1_13 = __VERIFIER_nondet_uchar() [L88] CALL assume_abort_if_not(var_1_13 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=32] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(var_1_13 >= 1) VAL [isInitial=1, last_1_var_1_11=1, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=32] [L89] CALL assume_abort_if_not(var_1_13 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=32] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not(var_1_13 <= 1) VAL [isInitial=1, last_1_var_1_11=1, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=32] [L90] var_1_15 = __VERIFIER_nondet_uchar() [L91] CALL assume_abort_if_not(var_1_15 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=32] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not(var_1_15 >= 0) VAL [isInitial=1, last_1_var_1_11=1, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=32] [L92] CALL assume_abort_if_not(var_1_15 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=4, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=32] [L20] COND FALSE !(!cond) [L92] RET assume_abort_if_not(var_1_15 <= 254) VAL [isInitial=1, last_1_var_1_11=1, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=4, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=32] [L93] var_1_16 = __VERIFIER_nondet_uchar() [L94] CALL assume_abort_if_not(var_1_16 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=4, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=32] [L20] COND FALSE !(!cond) [L94] RET assume_abort_if_not(var_1_16 >= 0) VAL [isInitial=1, last_1_var_1_11=1, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=4, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=32] [L95] CALL assume_abort_if_not(var_1_16 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=4, var_1_16=1, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=32] [L20] COND FALSE !(!cond) [L95] RET assume_abort_if_not(var_1_16 <= 254) VAL [isInitial=1, last_1_var_1_11=1, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=4, var_1_16=1, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=32] [L96] var_1_17 = __VERIFIER_nondet_uchar() [L97] CALL assume_abort_if_not(var_1_17 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=4, var_1_16=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=32] [L20] COND FALSE !(!cond) [L97] RET assume_abort_if_not(var_1_17 >= 0) VAL [isInitial=1, last_1_var_1_11=1, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=4, var_1_16=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=32] [L98] CALL assume_abort_if_not(var_1_17 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=4, var_1_16=1, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=32] [L20] COND FALSE !(!cond) [L98] RET assume_abort_if_not(var_1_17 <= 254) VAL [isInitial=1, last_1_var_1_11=1, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=4, var_1_16=1, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=32] [L112] RET updateVariables() [L113] CALL step() [L40] COND TRUE var_1_3 >= var_1_2 [L41] COND TRUE \read(last_1_var_1_11) [L42] COND FALSE !(! last_1_var_1_11) [L45] var_1_8 = var_1_9 [L49] COND TRUE var_1_8 <= var_1_8 [L50] var_1_11 = (var_1_12 || var_1_13) [L52] unsigned char stepLocal_0 = var_1_11; [L53] COND FALSE !((var_1_2 - 5.25) < (var_1_8 * (var_1_8 * 199.4))) [L62] COND FALSE !(! var_1_11) [L65] var_1_14 = var_1_16 [L113] RET step() [L114] CALL, EXPR property() [L104-L105] return (((((var_1_2 - 5.25) < (var_1_8 * (var_1_8 * 199.4))) ? ((var_1_11 && var_1_11) ? ((var_1_8 < var_1_8) ? (var_1_1 == ((signed char) var_1_7)) : (var_1_1 == ((signed char) var_1_7))) : 1) : 1) && ((var_1_3 >= var_1_2) ? (last_1_var_1_11 ? ((! last_1_var_1_11) ? (var_1_8 == ((signed long int) ((((var_1_9) > ((10.25f + var_1_10))) ? (var_1_9) : ((10.25f + var_1_10)))))) : (var_1_8 == ((signed long int) var_1_9))) : 1) : 1)) && ((var_1_8 <= var_1_8) ? (var_1_11 == ((unsigned char) (var_1_12 || var_1_13))) : 1)) && ((! var_1_11) ? (var_1_14 == ((unsigned char) ((((((((var_1_15) < (((((var_1_16) > (5)) ? (var_1_16) : (5))))) ? (var_1_15) : (((((var_1_16) > (5)) ? (var_1_16) : (5))))))) < (var_1_17)) ? (((((var_1_15) < (((((var_1_16) > (5)) ? (var_1_16) : (5))))) ? (var_1_15) : (((((var_1_16) > (5)) ? (var_1_16) : (5))))))) : (var_1_17))))) : (var_1_14 == ((unsigned char) var_1_16))) ; [L114] RET, EXPR property() [L114] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_11=1, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=1, var_1_15=4, var_1_16=1, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=32] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_11=1, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=1, var_1_15=4, var_1_16=1, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=32] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 20, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 74 NumberOfCodeBlocks, 74 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-12-02 15:14:04,215 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b2c8156-a8b6-4076-9532-79e762fd0909/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b2c8156-a8b6-4076-9532-79e762fd0909/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b2c8156-a8b6-4076-9532-79e762fd0909/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b2c8156-a8b6-4076-9532-79e762fd0909/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b2c8156-a8b6-4076-9532-79e762fd0909/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-11.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b2c8156-a8b6-4076-9532-79e762fd0909/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b2c8156-a8b6-4076-9532-79e762fd0909/bin/utaipan-verify-nQ1chXbOIh --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 2c04fa9e35f4863ffa3e38fc942000589ae498f8db4e626f7ee6fb3d8c4e793d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 15:14:06,130 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 15:14:06,206 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b2c8156-a8b6-4076-9532-79e762fd0909/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-12-02 15:14:06,212 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 15:14:06,213 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 15:14:06,240 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 15:14:06,240 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 15:14:06,241 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 15:14:06,242 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 15:14:06,242 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 15:14:06,243 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 15:14:06,243 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 15:14:06,244 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 15:14:06,244 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 15:14:06,245 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 15:14:06,245 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 15:14:06,246 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 15:14:06,247 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 15:14:06,247 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 15:14:06,248 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 15:14:06,249 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 15:14:06,249 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 15:14:06,250 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 15:14:06,250 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 15:14:06,250 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 15:14:06,251 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 15:14:06,251 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 15:14:06,252 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 15:14:06,252 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 15:14:06,253 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 15:14:06,253 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 15:14:06,253 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 15:14:06,254 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 15:14:06,254 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 15:14:06,254 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:14:06,254 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 15:14:06,255 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 15:14:06,255 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 15:14:06,255 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 15:14:06,255 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 15:14:06,256 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 15:14:06,258 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 15:14:06,258 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 15:14:06,258 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 15:14:06,259 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_8b2c8156-a8b6-4076-9532-79e762fd0909/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b2c8156-a8b6-4076-9532-79e762fd0909/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c04fa9e35f4863ffa3e38fc942000589ae498f8db4e626f7ee6fb3d8c4e793d [2023-12-02 15:14:06,531 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 15:14:06,552 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 15:14:06,554 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 15:14:06,556 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 15:14:06,556 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 15:14:06,557 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b2c8156-a8b6-4076-9532-79e762fd0909/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-11.i [2023-12-02 15:14:09,347 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 15:14:09,552 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 15:14:09,553 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b2c8156-a8b6-4076-9532-79e762fd0909/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-11.i [2023-12-02 15:14:09,562 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b2c8156-a8b6-4076-9532-79e762fd0909/bin/utaipan-verify-nQ1chXbOIh/data/39bc148e4/092777187b6c41d7884d707b03d1f08a/FLAGb5e25f116 [2023-12-02 15:14:09,904 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b2c8156-a8b6-4076-9532-79e762fd0909/bin/utaipan-verify-nQ1chXbOIh/data/39bc148e4/092777187b6c41d7884d707b03d1f08a [2023-12-02 15:14:09,906 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 15:14:09,908 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 15:14:09,909 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 15:14:09,909 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 15:14:09,914 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 15:14:09,914 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:14:09" (1/1) ... [2023-12-02 15:14:09,915 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c8febf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:14:09, skipping insertion in model container [2023-12-02 15:14:09,916 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:14:09" (1/1) ... [2023-12-02 15:14:09,942 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 15:14:10,063 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_8b2c8156-a8b6-4076-9532-79e762fd0909/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-11.i[916,929] [2023-12-02 15:14:10,106 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:14:10,125 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 15:14:10,138 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_8b2c8156-a8b6-4076-9532-79e762fd0909/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-11.i[916,929] [2023-12-02 15:14:10,162 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:14:10,180 INFO L206 MainTranslator]: Completed translation [2023-12-02 15:14:10,181 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:14:10 WrapperNode [2023-12-02 15:14:10,181 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 15:14:10,182 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 15:14:10,182 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 15:14:10,182 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 15:14:10,189 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:14:10" (1/1) ... [2023-12-02 15:14:10,204 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:14:10" (1/1) ... [2023-12-02 15:14:10,231 INFO L138 Inliner]: procedures = 27, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 116 [2023-12-02 15:14:10,231 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 15:14:10,232 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 15:14:10,232 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 15:14:10,232 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 15:14:10,241 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:14:10" (1/1) ... [2023-12-02 15:14:10,242 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:14:10" (1/1) ... [2023-12-02 15:14:10,246 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:14:10" (1/1) ... [2023-12-02 15:14:10,247 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:14:10" (1/1) ... [2023-12-02 15:14:10,257 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:14:10" (1/1) ... [2023-12-02 15:14:10,261 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:14:10" (1/1) ... [2023-12-02 15:14:10,264 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:14:10" (1/1) ... [2023-12-02 15:14:10,266 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:14:10" (1/1) ... [2023-12-02 15:14:10,270 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 15:14:10,271 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 15:14:10,271 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 15:14:10,271 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 15:14:10,272 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:14:10" (1/1) ... [2023-12-02 15:14:10,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:14:10,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b2c8156-a8b6-4076-9532-79e762fd0909/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:14:10,303 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b2c8156-a8b6-4076-9532-79e762fd0909/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 15:14:10,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b2c8156-a8b6-4076-9532-79e762fd0909/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 15:14:10,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 15:14:10,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 15:14:10,342 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 15:14:10,342 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 15:14:10,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 15:14:10,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 15:14:10,427 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 15:14:10,429 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 15:14:18,265 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 15:14:18,329 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 15:14:18,330 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 15:14:18,330 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:14:18 BoogieIcfgContainer [2023-12-02 15:14:18,330 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 15:14:18,333 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 15:14:18,333 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 15:14:18,340 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 15:14:18,341 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:14:09" (1/3) ... [2023-12-02 15:14:18,342 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66476b8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:14:18, skipping insertion in model container [2023-12-02 15:14:18,342 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:14:10" (2/3) ... [2023-12-02 15:14:18,342 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66476b8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:14:18, skipping insertion in model container [2023-12-02 15:14:18,342 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:14:18" (3/3) ... [2023-12-02 15:14:18,344 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-11.i [2023-12-02 15:14:18,357 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 15:14:18,357 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 15:14:18,398 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 15:14:18,403 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;@6b275c83, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 15:14:18,403 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 15:14:18,407 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 29 states have (on average 1.4482758620689655) internal successors, (42), 30 states have internal predecessors, (42), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-02 15:14:18,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-02 15:14:18,419 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:14:18,420 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:14:18,421 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:14:18,425 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:14:18,425 INFO L85 PathProgramCache]: Analyzing trace with hash -1075937705, now seen corresponding path program 1 times [2023-12-02 15:14:18,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 15:14:18,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1329549805] [2023-12-02 15:14:18,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:14:18,439 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 [2023-12-02 15:14:18,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b2c8156-a8b6-4076-9532-79e762fd0909/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 15:14:18,441 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b2c8156-a8b6-4076-9532-79e762fd0909/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 15:14:18,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b2c8156-a8b6-4076-9532-79e762fd0909/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 15:14:18,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:14:19,007 INFO L262 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 15:14:19,018 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:14:19,068 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked. [2023-12-02 15:14:19,068 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 15:14:19,069 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 15:14:19,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1329549805] [2023-12-02 15:14:19,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1329549805] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:14:19,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:14:19,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:14:19,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907934675] [2023-12-02 15:14:19,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:14:19,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 15:14:19,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 15:14:19,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 15:14:19,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 15:14:19,110 INFO L87 Difference]: Start difference. First operand has 52 states, 29 states have (on average 1.4482758620689655) internal successors, (42), 30 states have internal predecessors, (42), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-02 15:14:21,454 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:14:21,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:14:21,456 INFO L93 Difference]: Finished difference Result 101 states and 182 transitions. [2023-12-02 15:14:21,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 15:14:21,551 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) Word has length 120 [2023-12-02 15:14:21,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:14:21,559 INFO L225 Difference]: With dead ends: 101 [2023-12-02 15:14:21,559 INFO L226 Difference]: Without dead ends: 50 [2023-12-02 15:14:21,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 15:14:21,566 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-02 15:14:21,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 72 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2023-12-02 15:14:21,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-12-02 15:14:21,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2023-12-02 15:14:21,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 28 states have (on average 1.25) internal successors, (35), 28 states have internal predecessors, (35), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-02 15:14:21,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 75 transitions. [2023-12-02 15:14:21,617 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 75 transitions. Word has length 120 [2023-12-02 15:14:21,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:14:21,618 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 75 transitions. [2023-12-02 15:14:21,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-02 15:14:21,618 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 75 transitions. [2023-12-02 15:14:21,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-02 15:14:21,621 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:14:21,621 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:14:21,632 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b2c8156-a8b6-4076-9532-79e762fd0909/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 15:14:21,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b2c8156-a8b6-4076-9532-79e762fd0909/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 15:14:21,822 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:14:21,823 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:14:21,823 INFO L85 PathProgramCache]: Analyzing trace with hash 865068631, now seen corresponding path program 1 times [2023-12-02 15:14:21,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 15:14:21,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1399882785] [2023-12-02 15:14:21,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:14:21,824 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 [2023-12-02 15:14:21,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b2c8156-a8b6-4076-9532-79e762fd0909/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 15:14:21,825 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b2c8156-a8b6-4076-9532-79e762fd0909/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 15:14:21,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b2c8156-a8b6-4076-9532-79e762fd0909/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 15:14:22,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:14:22,353 INFO L262 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 15:14:22,363 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:14:23,077 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 379 proven. 21 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2023-12-02 15:14:23,077 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:14:23,648 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 36 proven. 21 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-12-02 15:14:23,649 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 15:14:23,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1399882785] [2023-12-02 15:14:23,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1399882785] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 15:14:23,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [423710681] [2023-12-02 15:14:23,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:14:23,650 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 15:14:23,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b2c8156-a8b6-4076-9532-79e762fd0909/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 15:14:23,679 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b2c8156-a8b6-4076-9532-79e762fd0909/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 15:14:23,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b2c8156-a8b6-4076-9532-79e762fd0909/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-02 15:14:24,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:14:24,268 INFO L262 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 15:14:24,277 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:15:01,300 WARN L854 $PredicateComparison]: unable to prove that (and (not (bvsge c_~var_1_3~0 c_~var_1_2~0)) (not (fp.lt (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_2~0) ((_ to_fp 11 53) c_currentRoundingMode (/ 21.0 4.0))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_8~0))) (fp.mul c_currentRoundingMode .cse0 (fp.mul c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 997.0 5.0))))))) (let ((.cse1 (= c_~var_1_12~0 (_ bv0 8))) (.cse2 (= c_~var_1_13~0 (_ bv0 8)))) (or (and .cse1 (= (_ bv0 8) c_~var_1_11~0) .cse2) (and (= (_ bv1 8) c_~var_1_11~0) (or (not .cse1) (not .cse2)))))) is different from false [2023-12-02 15:15:03,390 WARN L876 $PredicateComparison]: unable to prove that (and (not (bvsge c_~var_1_3~0 c_~var_1_2~0)) (not (fp.lt (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_2~0) ((_ to_fp 11 53) c_currentRoundingMode (/ 21.0 4.0))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_8~0))) (fp.mul c_currentRoundingMode .cse0 (fp.mul c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 997.0 5.0))))))) (let ((.cse1 (= c_~var_1_12~0 (_ bv0 8))) (.cse2 (= c_~var_1_13~0 (_ bv0 8)))) (or (and .cse1 (= (_ bv0 8) c_~var_1_11~0) .cse2) (and (= (_ bv1 8) c_~var_1_11~0) (or (not .cse1) (not .cse2)))))) is different from true [2023-12-02 15:17:20,420 WARN L854 $PredicateComparison]: unable to prove that (and (= c_~var_1_12~0 (_ bv0 8)) (= (_ bv0 8) c_~var_1_11~0) (= c_~var_1_13~0 (_ bv0 8)) (not (bvsge c_~var_1_3~0 c_~var_1_2~0)) (not (fp.lt (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_2~0) ((_ to_fp 11 53) c_currentRoundingMode (/ 21.0 4.0))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_8~0))) (fp.mul c_currentRoundingMode .cse0 (fp.mul c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 997.0 5.0))))))) (let ((.cse7 ((_ zero_extend 24) c_~var_1_17~0))) (let ((.cse6 (= c_~var_1_14~0 ((_ extract 7 0) .cse7))) (.cse10 ((_ zero_extend 24) c_~var_1_15~0)) (.cse5 ((_ zero_extend 24) c_~var_1_16~0))) (let ((.cse1 (bvslt .cse10 .cse5)) (.cse2 (let ((.cse11 (bvslt .cse10 .cse7))) (or (and .cse6 (not .cse11)) (and (= ((_ extract 7 0) .cse10) c_~var_1_14~0) .cse11))))) (or (and .cse1 .cse2) (and (not .cse1) (let ((.cse9 (bvslt .cse10 (_ bv5 32)))) (or (and (let ((.cse3 (bvsgt .cse5 (_ bv5 32)))) (or (and .cse3 (let ((.cse4 (bvslt .cse5 .cse7))) (or (and .cse4 (= c_~var_1_14~0 ((_ extract 7 0) .cse5))) (and (not .cse4) .cse6)))) (and (not .cse3) (let ((.cse8 (bvslt (_ bv5 32) .cse7))) (or (and .cse6 (not .cse8)) (and (= c_~var_1_14~0 (_ bv5 8)) .cse8)))))) (not .cse9)) (and .cse9 .cse2))))))))) is different from false [2023-12-02 15:17:22,504 WARN L876 $PredicateComparison]: unable to prove that (and (= c_~var_1_12~0 (_ bv0 8)) (= (_ bv0 8) c_~var_1_11~0) (= c_~var_1_13~0 (_ bv0 8)) (not (bvsge c_~var_1_3~0 c_~var_1_2~0)) (not (fp.lt (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_2~0) ((_ to_fp 11 53) c_currentRoundingMode (/ 21.0 4.0))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_8~0))) (fp.mul c_currentRoundingMode .cse0 (fp.mul c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 997.0 5.0))))))) (let ((.cse7 ((_ zero_extend 24) c_~var_1_17~0))) (let ((.cse6 (= c_~var_1_14~0 ((_ extract 7 0) .cse7))) (.cse10 ((_ zero_extend 24) c_~var_1_15~0)) (.cse5 ((_ zero_extend 24) c_~var_1_16~0))) (let ((.cse1 (bvslt .cse10 .cse5)) (.cse2 (let ((.cse11 (bvslt .cse10 .cse7))) (or (and .cse6 (not .cse11)) (and (= ((_ extract 7 0) .cse10) c_~var_1_14~0) .cse11))))) (or (and .cse1 .cse2) (and (not .cse1) (let ((.cse9 (bvslt .cse10 (_ bv5 32)))) (or (and (let ((.cse3 (bvsgt .cse5 (_ bv5 32)))) (or (and .cse3 (let ((.cse4 (bvslt .cse5 .cse7))) (or (and .cse4 (= c_~var_1_14~0 ((_ extract 7 0) .cse5))) (and (not .cse4) .cse6)))) (and (not .cse3) (let ((.cse8 (bvslt (_ bv5 32) .cse7))) (or (and .cse6 (not .cse8)) (and (= c_~var_1_14~0 (_ bv5 8)) .cse8)))))) (not .cse9)) (and .cse9 .cse2))))))))) is different from true