./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-9.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 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_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-9.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/bin/utaipan-verify-YMUCfTKeje --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 8c739365ea97b8d8f582c1641d81069a58ff4a5e699a71dc4c2b9835245908d7 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:58:57,807 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:58:57,903 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 05:58:57,909 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:58:57,909 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:58:57,947 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:58:57,949 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:58:57,950 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:58:57,951 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:58:57,953 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:58:57,953 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:58:57,954 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:58:57,954 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:58:57,954 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:58:57,955 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:58:57,955 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:58:57,958 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:58:57,959 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:58:57,959 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:58:57,960 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:58:57,960 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:58:57,964 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:58:57,964 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:58:57,964 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:58:57,965 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:58:57,965 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:58:57,965 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:58:57,965 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:58:57,966 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:58:57,966 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:58:57,966 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:58:57,967 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:58:57,968 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:58:57,968 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:58:57,968 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:58:57,968 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:58:57,969 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:58:57,969 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:58:57,969 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:58:57,969 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:58:57,970 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:58:57,970 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:58:57,971 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:58:57,971 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:58:57,971 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:58:57,972 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:58:57,972 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:58:57,972 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_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c739365ea97b8d8f582c1641d81069a58ff4a5e699a71dc4c2b9835245908d7 [2024-11-09 05:58:58,258 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:58:58,297 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:58:58,300 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:58:58,302 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:58:58,303 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:58:58,304 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-9.i Unable to find full path for "g++" [2024-11-09 05:59:00,267 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:59:00,524 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:59:00,525 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-9.i [2024-11-09 05:59:00,539 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/bin/utaipan-verify-YMUCfTKeje/data/3bc0a609b/f07b2f2dfe474ab48a5d66caa7b033e8/FLAGfda9b3296 [2024-11-09 05:59:00,554 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/bin/utaipan-verify-YMUCfTKeje/data/3bc0a609b/f07b2f2dfe474ab48a5d66caa7b033e8 [2024-11-09 05:59:00,560 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:59:00,562 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:59:00,563 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:59:00,563 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:59:00,569 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:59:00,570 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:59:00" (1/1) ... [2024-11-09 05:59:00,570 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7db72071 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:59:00, skipping insertion in model container [2024-11-09 05:59:00,570 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:59:00" (1/1) ... [2024-11-09 05:59:00,593 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:59:00,778 WARN L250 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_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-9.i[916,929] [2024-11-09 05:59:00,841 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:59:00,856 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:59:00,871 WARN L250 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_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-9.i[916,929] [2024-11-09 05:59:00,891 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:59:00,914 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:59:00,914 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:59:00 WrapperNode [2024-11-09 05:59:00,915 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:59:00,916 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:59:00,916 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:59:00,917 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:59:00,925 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:59:00" (1/1) ... [2024-11-09 05:59:00,939 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:59:00" (1/1) ... [2024-11-09 05:59:00,969 INFO L138 Inliner]: procedures = 26, calls = 18, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 99 [2024-11-09 05:59:00,969 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:59:00,970 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:59:00,970 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:59:00,971 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:59:00,984 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:59:00" (1/1) ... [2024-11-09 05:59:00,984 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:59:00" (1/1) ... [2024-11-09 05:59:00,987 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:59:00" (1/1) ... [2024-11-09 05:59:00,987 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:59:00" (1/1) ... [2024-11-09 05:59:00,993 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:59:00" (1/1) ... [2024-11-09 05:59:00,997 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:59:00" (1/1) ... [2024-11-09 05:59:00,999 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:59:00" (1/1) ... [2024-11-09 05:59:01,000 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:59:00" (1/1) ... [2024-11-09 05:59:01,009 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:59:01,009 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:59:01,010 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:59:01,010 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:59:01,011 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:59:00" (1/1) ... [2024-11-09 05:59:01,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:59:01,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:59:01,051 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:59:01,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:59:01,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:59:01,087 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 05:59:01,088 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 05:59:01,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 05:59:01,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:59:01,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:59:01,183 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:59:01,188 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:59:01,514 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-09 05:59:01,515 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:59:01,745 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:59:01,745 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 05:59:01,746 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:59:01 BoogieIcfgContainer [2024-11-09 05:59:01,746 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:59:01,749 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:59:01,749 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:59:01,757 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:59:01,758 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:59:00" (1/3) ... [2024-11-09 05:59:01,759 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fe1e79c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:59:01, skipping insertion in model container [2024-11-09 05:59:01,759 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:59:00" (2/3) ... [2024-11-09 05:59:01,760 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fe1e79c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:59:01, skipping insertion in model container [2024-11-09 05:59:01,760 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:59:01" (3/3) ... [2024-11-09 05:59:01,762 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-9.i [2024-11-09 05:59:01,783 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:59:01,784 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 05:59:01,868 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:59:01,877 INFO L333 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, 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;@73820add, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:59:01,878 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 05:59:01,882 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 05:59:01,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-09 05:59:01,894 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:59:01,895 INFO L215 NwaCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:59:01,896 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:59:01,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:59:01,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1810774827, now seen corresponding path program 1 times [2024-11-09 05:59:01,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:59:01,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781096727] [2024-11-09 05:59:01,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:59:01,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:59:02,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:59:02,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2137107596] [2024-11-09 05:59:02,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:59:02,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:59:02,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:59:02,232 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:59:02,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 05:59:02,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 05:59:02,357 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 05:59:02,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 05:59:02,458 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 05:59:02,462 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 05:59:02,464 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 05:59:02,488 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 05:59:02,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-09 05:59:02,677 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 05:59:02,717 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 05:59:02,721 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:59:02 BoogieIcfgContainer [2024-11-09 05:59:02,722 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 05:59:02,722 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 05:59:02,726 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 05:59:02,727 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 05:59:02,727 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:59:01" (3/4) ... [2024-11-09 05:59:02,733 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 05:59:02,738 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 05:59:02,743 INFO L158 Benchmark]: Toolchain (without parser) took 2180.67ms. Allocated memory was 144.7MB in the beginning and 176.2MB in the end (delta: 31.5MB). Free memory was 111.6MB in the beginning and 114.1MB in the end (delta: -2.5MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. [2024-11-09 05:59:02,745 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 92.3MB. Free memory is still 38.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:59:02,746 INFO L158 Benchmark]: CACSL2BoogieTranslator took 352.32ms. Allocated memory is still 144.7MB. Free memory was 111.1MB in the beginning and 97.3MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 05:59:02,751 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.90ms. Allocated memory is still 144.7MB. Free memory was 97.3MB in the beginning and 94.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 05:59:02,754 INFO L158 Benchmark]: Boogie Preprocessor took 38.53ms. Allocated memory is still 144.7MB. Free memory was 94.8MB in the beginning and 93.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 05:59:02,755 INFO L158 Benchmark]: RCFGBuilder took 736.72ms. Allocated memory was 144.7MB in the beginning and 176.2MB in the end (delta: 31.5MB). Free memory was 93.1MB in the beginning and 143.4MB in the end (delta: -50.3MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. [2024-11-09 05:59:02,756 INFO L158 Benchmark]: TraceAbstraction took 972.54ms. Allocated memory is still 176.2MB. Free memory was 143.4MB in the beginning and 115.1MB in the end (delta: 28.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-11-09 05:59:02,758 INFO L158 Benchmark]: Witness Printer took 18.92ms. Allocated memory is still 176.2MB. Free memory was 115.1MB in the beginning and 114.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:59:02,783 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 92.3MB. Free memory is still 38.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 352.32ms. Allocated memory is still 144.7MB. Free memory was 111.1MB in the beginning and 97.3MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.90ms. Allocated memory is still 144.7MB. Free memory was 97.3MB in the beginning and 94.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.53ms. Allocated memory is still 144.7MB. Free memory was 94.8MB in the beginning and 93.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 736.72ms. Allocated memory was 144.7MB in the beginning and 176.2MB in the end (delta: 31.5MB). Free memory was 93.1MB in the beginning and 143.4MB in the end (delta: -50.3MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. * TraceAbstraction took 972.54ms. Allocated memory is still 176.2MB. Free memory was 143.4MB in the beginning and 115.1MB in the end (delta: 28.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Witness Printer took 18.92ms. Allocated memory is still 176.2MB. Free memory was 115.1MB in the beginning and 114.1MB in the end (delta: 1.0MB). 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 someBinaryDOUBLEComparisonOperation at line 38, overapproximation of shiftLeft at line 45. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 10; [L23] unsigned char var_1_3 = 4; [L24] unsigned char var_1_7 = 0; [L25] signed short int var_1_8 = 100; [L26] unsigned char var_1_9 = 32; [L27] double var_1_10 = 9.2; [L28] double var_1_11 = 0.975; [L29] signed short int var_1_12 = 1; [L30] signed long int var_1_14 = -16; [L31] unsigned char last_1_var_1_1 = 10; [L32] double last_1_var_1_10 = 9.2; [L33] signed short int last_1_var_1_12 = 1; [L34] signed long int last_1_var_1_14 = -16; [L85] isInitial = 1 [L86] FCALL initially() [L87] COND TRUE 1 [L88] CALL updateLastVariables() [L75] last_1_var_1_1 = var_1_1 [L76] last_1_var_1_10 = var_1_10 [L77] last_1_var_1_12 = var_1_12 [L78] last_1_var_1_14 = var_1_14 [L88] RET updateLastVariables() [L89] CALL updateVariables() [L65] var_1_3 = __VERIFIER_nondet_uchar() [L66] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10=46/5, var_1_11=39/40, var_1_12=1, var_1_14=-16, var_1_1=10, var_1_7=0, var_1_8=100, var_1_9=32] [L20] COND FALSE !(!cond) [L66] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10=46/5, var_1_11=39/40, var_1_12=1, var_1_14=-16, var_1_1=10, var_1_7=0, var_1_8=100, var_1_9=32] [L67] CALL assume_abort_if_not(var_1_3 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10=46/5, var_1_11=39/40, var_1_12=1, var_1_14=-16, var_1_1=10, var_1_3=0, var_1_7=0, var_1_8=100, var_1_9=32] [L20] COND FALSE !(!cond) [L67] RET assume_abort_if_not(var_1_3 <= 254) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10=46/5, var_1_11=39/40, var_1_12=1, var_1_14=-16, var_1_1=10, var_1_3=0, var_1_7=0, var_1_8=100, var_1_9=32] [L68] var_1_7 = __VERIFIER_nondet_uchar() [L69] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10=46/5, var_1_11=39/40, var_1_12=1, var_1_14=-16, var_1_1=10, var_1_3=0, var_1_8=100, var_1_9=32] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10=46/5, var_1_11=39/40, var_1_12=1, var_1_14=-16, var_1_1=10, var_1_3=0, var_1_8=100, var_1_9=32] [L70] CALL assume_abort_if_not(var_1_7 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10=46/5, var_1_11=39/40, var_1_12=1, var_1_14=-16, var_1_1=10, var_1_3=0, var_1_7=1, var_1_8=100, var_1_9=32] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_7 <= 1) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10=46/5, var_1_11=39/40, var_1_12=1, var_1_14=-16, var_1_1=10, var_1_3=0, var_1_7=1, var_1_8=100, var_1_9=32] [L71] var_1_11 = __VERIFIER_nondet_double() [L72] CALL assume_abort_if_not((var_1_11 >= -922337.2036854765600e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854765600e+12F && var_1_11 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10=46/5, var_1_12=1, var_1_14=-16, var_1_1=10, var_1_3=0, var_1_7=1, var_1_8=100, var_1_9=32] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not((var_1_11 >= -922337.2036854765600e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854765600e+12F && var_1_11 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10=46/5, var_1_12=1, var_1_14=-16, var_1_1=10, var_1_3=0, var_1_7=1, var_1_8=100, var_1_9=32] [L89] RET updateVariables() [L90] CALL step() [L38] unsigned char stepLocal_0 = last_1_var_1_10 > last_1_var_1_10; [L39] COND TRUE ((last_1_var_1_12 + last_1_var_1_1) < 10) || stepLocal_0 [L40] var_1_12 = ((((((var_1_3 + last_1_var_1_12) - ((((last_1_var_1_14) > (last_1_var_1_12)) ? (last_1_var_1_14) : (last_1_var_1_12))))) > (last_1_var_1_1)) ? (((var_1_3 + last_1_var_1_12) - ((((last_1_var_1_14) > (last_1_var_1_12)) ? (last_1_var_1_14) : (last_1_var_1_12))))) : (last_1_var_1_1))) [L44] var_1_14 = var_1_12 [L45] EXPR 10 << var_1_12 [L45] COND FALSE !((10 << var_1_12) < (var_1_3 * var_1_14)) [L48] var_1_9 = 64 [L49] var_1_10 = var_1_11 [L50] COND TRUE var_1_12 <= 16 [L51] var_1_1 = var_1_3 [L90] RET step() [L91] CALL, EXPR property() [L81] EXPR ((var_1_12 <= 16) ? (var_1_1 == ((unsigned char) var_1_3)) : ((((((var_1_10) > (var_1_10)) ? (var_1_10) : (var_1_10))) < var_1_10) ? (var_1_7 ? (var_1_1 == ((unsigned char) var_1_3)) : (var_1_1 == ((unsigned char) var_1_3))) : (var_1_1 == ((unsigned char) var_1_3)))) && (((10 << var_1_12) < (var_1_3 * var_1_14)) ? (var_1_8 == ((signed short int) (var_1_12 + var_1_14))) : 1) [L81] EXPR 10 << var_1_12 [L81] EXPR ((var_1_12 <= 16) ? (var_1_1 == ((unsigned char) var_1_3)) : ((((((var_1_10) > (var_1_10)) ? (var_1_10) : (var_1_10))) < var_1_10) ? (var_1_7 ? (var_1_1 == ((unsigned char) var_1_3)) : (var_1_1 == ((unsigned char) var_1_3))) : (var_1_1 == ((unsigned char) var_1_3)))) && (((10 << var_1_12) < (var_1_3 * var_1_14)) ? (var_1_8 == ((signed short int) (var_1_12 + var_1_14))) : 1) [L81-L82] return ((((((var_1_12 <= 16) ? (var_1_1 == ((unsigned char) var_1_3)) : ((((((var_1_10) > (var_1_10)) ? (var_1_10) : (var_1_10))) < var_1_10) ? (var_1_7 ? (var_1_1 == ((unsigned char) var_1_3)) : (var_1_1 == ((unsigned char) var_1_3))) : (var_1_1 == ((unsigned char) var_1_3)))) && (((10 << var_1_12) < (var_1_3 * var_1_14)) ? (var_1_8 == ((signed short int) (var_1_12 + var_1_14))) : 1)) && (var_1_9 == ((unsigned char) 64))) && (var_1_10 == ((double) var_1_11))) && ((((last_1_var_1_12 + last_1_var_1_1) < 10) || (last_1_var_1_10 > last_1_var_1_10)) ? (var_1_12 == ((signed short int) ((((((var_1_3 + last_1_var_1_12) - ((((last_1_var_1_14) > (last_1_var_1_12)) ? (last_1_var_1_14) : (last_1_var_1_12))))) > (last_1_var_1_1)) ? (((var_1_3 + last_1_var_1_12) - ((((last_1_var_1_14) > (last_1_var_1_12)) ? (last_1_var_1_14) : (last_1_var_1_12))))) : (last_1_var_1_1))))) : (var_1_12 == ((signed short int) last_1_var_1_12)))) && (var_1_14 == ((signed long int) var_1_12)) ; [L91] RET, EXPR property() [L91] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10=2, var_1_11=2, var_1_12=10, var_1_14=10, var_1_1=0, var_1_3=0, var_1_7=1, var_1_8=100, var_1_9=64] [L19] reach_error() VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10=2, var_1_11=2, var_1_12=10, var_1_14=10, var_1_1=0, var_1_3=0, var_1_7=1, var_1_8=100, var_1_9=64] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 5, 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=17occurred 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, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 2 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 [2024-11-09 05:59:02,835 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/bin/utaipan-verify-YMUCfTKeje/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-9.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/bin/utaipan-verify-YMUCfTKeje --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 8c739365ea97b8d8f582c1641d81069a58ff4a5e699a71dc4c2b9835245908d7 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:59:05,314 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:59:05,418 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-09 05:59:05,427 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:59:05,428 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:59:05,474 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:59:05,475 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:59:05,476 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:59:05,477 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:59:05,478 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:59:05,478 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:59:05,479 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:59:05,479 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:59:05,479 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:59:05,481 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:59:05,482 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:59:05,483 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:59:05,483 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:59:05,483 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:59:05,484 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:59:05,487 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:59:05,488 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:59:05,488 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:59:05,488 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:59:05,489 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 05:59:05,489 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 05:59:05,489 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:59:05,489 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 05:59:05,490 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:59:05,490 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:59:05,490 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:59:05,490 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:59:05,491 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 05:59:05,491 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:59:05,492 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:59:05,493 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:59:05,493 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:59:05,494 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:59:05,494 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:59:05,495 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 05:59:05,495 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 05:59:05,496 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:59:05,496 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:59:05,496 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c739365ea97b8d8f582c1641d81069a58ff4a5e699a71dc4c2b9835245908d7 [2024-11-09 05:59:05,942 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:59:05,969 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:59:05,972 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:59:05,973 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:59:05,974 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:59:05,975 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-9.i Unable to find full path for "g++" [2024-11-09 05:59:08,209 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:59:08,415 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:59:08,416 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-9.i [2024-11-09 05:59:08,425 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/bin/utaipan-verify-YMUCfTKeje/data/f363de99a/0face83db82b4c73aaa4577e45ef8b2f/FLAG68ef72928 [2024-11-09 05:59:08,784 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/bin/utaipan-verify-YMUCfTKeje/data/f363de99a/0face83db82b4c73aaa4577e45ef8b2f [2024-11-09 05:59:08,787 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:59:08,789 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:59:08,790 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:59:08,791 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:59:08,797 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:59:08,798 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:59:08" (1/1) ... [2024-11-09 05:59:08,800 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20c50172 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:59:08, skipping insertion in model container [2024-11-09 05:59:08,800 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:59:08" (1/1) ... [2024-11-09 05:59:08,834 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:59:09,136 WARN L250 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_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-9.i[916,929] [2024-11-09 05:59:09,219 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:59:09,251 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:59:09,275 WARN L250 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_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-9.i[916,929] [2024-11-09 05:59:09,319 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:59:09,350 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:59:09,350 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:59:09 WrapperNode [2024-11-09 05:59:09,351 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:59:09,353 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:59:09,353 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:59:09,353 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:59:09,362 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:59:09" (1/1) ... [2024-11-09 05:59:09,380 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:59:09" (1/1) ... [2024-11-09 05:59:09,424 INFO L138 Inliner]: procedures = 27, calls = 18, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 80 [2024-11-09 05:59:09,428 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:59:09,431 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:59:09,431 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:59:09,432 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:59:09,445 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:59:09" (1/1) ... [2024-11-09 05:59:09,445 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:59:09" (1/1) ... [2024-11-09 05:59:09,450 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:59:09" (1/1) ... [2024-11-09 05:59:09,451 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:59:09" (1/1) ... [2024-11-09 05:59:09,464 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:59:09" (1/1) ... [2024-11-09 05:59:09,472 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:59:09" (1/1) ... [2024-11-09 05:59:09,477 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:59:09" (1/1) ... [2024-11-09 05:59:09,483 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:59:09" (1/1) ... [2024-11-09 05:59:09,486 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:59:09,490 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:59:09,493 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:59:09,493 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:59:09,495 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:59:09" (1/1) ... [2024-11-09 05:59:09,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:59:09,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:59:09,531 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:59:09,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:59:09,559 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:59:09,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 05:59:09,560 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 05:59:09,560 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 05:59:09,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:59:09,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:59:09,656 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:59:09,658 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:59:09,967 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-09 05:59:09,967 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:59:09,992 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:59:09,993 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 05:59:09,993 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:59:09 BoogieIcfgContainer [2024-11-09 05:59:09,993 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:59:09,996 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:59:09,998 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:59:10,001 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:59:10,002 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:59:08" (1/3) ... [2024-11-09 05:59:10,003 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@713b370f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:59:10, skipping insertion in model container [2024-11-09 05:59:10,003 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:59:09" (2/3) ... [2024-11-09 05:59:10,003 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@713b370f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:59:10, skipping insertion in model container [2024-11-09 05:59:10,003 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:59:09" (3/3) ... [2024-11-09 05:59:10,006 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-9.i [2024-11-09 05:59:10,023 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:59:10,024 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 05:59:10,107 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:59:10,119 INFO L333 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, 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;@7864efdb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:59:10,119 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 05:59:10,123 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 26 states have (on average 1.3846153846153846) internal successors, (36), 27 states have internal predecessors, (36), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 05:59:10,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-09 05:59:10,134 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:59:10,135 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2024-11-09 05:59:10,136 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:59:10,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:59:10,141 INFO L85 PathProgramCache]: Analyzing trace with hash -856299918, now seen corresponding path program 1 times [2024-11-09 05:59:10,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:59:10,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [93697285] [2024-11-09 05:59:10,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:59:10,156 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 [2024-11-09 05:59:10,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:59:10,161 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 05:59:10,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:59:10,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:59:10,371 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 05:59:10,380 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:59:11,128 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-09 05:59:11,129 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:59:11,130 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:59:11,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [93697285] [2024-11-09 05:59:11,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [93697285] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:59:11,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:59:11,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:59:11,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105234187] [2024-11-09 05:59:11,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:59:11,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:59:11,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:59:11,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:59:11,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:59:11,187 INFO L87 Difference]: Start difference. First operand has 34 states, 26 states have (on average 1.3846153846153846) internal successors, (36), 27 states have internal predecessors, (36), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-09 05:59:11,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:59:11,562 INFO L93 Difference]: Finished difference Result 86 states and 133 transitions. [2024-11-09 05:59:11,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:59:11,566 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 42 [2024-11-09 05:59:11,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:59:11,577 INFO L225 Difference]: With dead ends: 86 [2024-11-09 05:59:11,577 INFO L226 Difference]: Without dead ends: 55 [2024-11-09 05:59:11,583 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:59:11,588 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 26 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:59:11,591 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 95 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 05:59:11,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-11-09 05:59:11,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 48. [2024-11-09 05:59:11,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 35 states have (on average 1.1428571428571428) internal successors, (40), 35 states have internal predecessors, (40), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-09 05:59:11,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 60 transitions. [2024-11-09 05:59:11,663 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 60 transitions. Word has length 42 [2024-11-09 05:59:11,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:59:11,664 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 60 transitions. [2024-11-09 05:59:11,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-09 05:59:11,664 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 60 transitions. [2024-11-09 05:59:11,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-09 05:59:11,667 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:59:11,667 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2024-11-09 05:59:11,676 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:59:11,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:59:11,868 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:59:11,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:59:11,869 INFO L85 PathProgramCache]: Analyzing trace with hash -176241548, now seen corresponding path program 1 times [2024-11-09 05:59:11,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:59:11,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1420051665] [2024-11-09 05:59:11,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:59:11,871 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 [2024-11-09 05:59:11,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:59:11,874 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 05:59:11,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:59:12,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:59:12,038 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-09 05:59:12,045 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:01:45,586 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-09 06:01:45,586 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:01:45,587 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:01:45,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1420051665] [2024-11-09 06:01:45,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1420051665] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:01:45,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:01:45,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-09 06:01:45,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005322176] [2024-11-09 06:01:45,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:01:45,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 06:01:45,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:01:45,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 06:01:45,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2024-11-09 06:01:45,593 INFO L87 Difference]: Start difference. First operand 48 states and 60 transitions. Second operand has 14 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 13 states have internal predecessors, (23), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-09 06:01:48,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:01:48,331 INFO L93 Difference]: Finished difference Result 70 states and 81 transitions. [2024-11-09 06:01:48,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 06:01:48,332 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 13 states have internal predecessors, (23), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 42 [2024-11-09 06:01:48,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:01:48,334 INFO L225 Difference]: With dead ends: 70 [2024-11-09 06:01:48,335 INFO L226 Difference]: Without dead ends: 68 [2024-11-09 06:01:48,336 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=175, Invalid=581, Unknown=0, NotChecked=0, Total=756 [2024-11-09 06:01:48,338 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 80 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-09 06:01:48,339 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 184 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-09 06:01:48,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-11-09 06:01:48,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 57. [2024-11-09 06:01:48,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 43 states have (on average 1.1162790697674418) internal successors, (48), 43 states have internal predecessors, (48), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-09 06:01:48,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 68 transitions. [2024-11-09 06:01:48,362 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 68 transitions. Word has length 42 [2024-11-09 06:01:48,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:01:48,362 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 68 transitions. [2024-11-09 06:01:48,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 13 states have internal predecessors, (23), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-09 06:01:48,363 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 68 transitions. [2024-11-09 06:01:48,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-09 06:01:48,365 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:01:48,365 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2024-11-09 06:01:48,370 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:01:48,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:01:48,566 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:01:48,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:01:48,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1598765814, now seen corresponding path program 1 times [2024-11-09 06:01:48,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:01:48,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1576248246] [2024-11-09 06:01:48,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:01:48,569 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 [2024-11-09 06:01:48,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:01:48,573 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 06:01:48,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:01:48,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:01:48,686 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-09 06:01:48,690 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:03:24,802 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-09 06:03:24,802 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:03:24,803 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:03:24,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1576248246] [2024-11-09 06:03:24,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1576248246] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:03:24,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:03:24,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-09 06:03:24,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357793038] [2024-11-09 06:03:24,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:03:24,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 06:03:24,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:03:24,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 06:03:24,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2024-11-09 06:03:24,807 INFO L87 Difference]: Start difference. First operand 57 states and 68 transitions. Second operand has 14 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 13 states have internal predecessors, (23), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-09 06:03:27,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:03:27,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:03:27,869 INFO L93 Difference]: Finished difference Result 68 states and 79 transitions. [2024-11-09 06:03:27,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 06:03:27,870 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 13 states have internal predecessors, (23), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 42 [2024-11-09 06:03:27,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:03:27,871 INFO L225 Difference]: With dead ends: 68 [2024-11-09 06:03:27,872 INFO L226 Difference]: Without dead ends: 66 [2024-11-09 06:03:27,872 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=175, Invalid=581, Unknown=0, NotChecked=0, Total=756 [2024-11-09 06:03:27,874 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 56 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-09 06:03:27,875 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 196 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-09 06:03:27,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2024-11-09 06:03:27,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 55. [2024-11-09 06:03:27,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 41 states have (on average 1.1219512195121952) internal successors, (46), 41 states have internal predecessors, (46), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-09 06:03:27,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 66 transitions. [2024-11-09 06:03:27,889 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 66 transitions. Word has length 42 [2024-11-09 06:03:27,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:03:27,890 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 66 transitions. [2024-11-09 06:03:27,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 13 states have internal predecessors, (23), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-09 06:03:27,890 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 66 transitions. [2024-11-09 06:03:27,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-09 06:03:27,893 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:03:27,893 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:03:27,899 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/bin/utaipan-verify-YMUCfTKeje/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)] Ended with exit code 0 [2024-11-09 06:03:28,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:03:28,095 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:03:28,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:03:28,095 INFO L85 PathProgramCache]: Analyzing trace with hash -1701921922, now seen corresponding path program 1 times [2024-11-09 06:03:28,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:03:28,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [720571455] [2024-11-09 06:03:28,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:03:28,097 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 [2024-11-09 06:03:28,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:03:28,101 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 06:03:28,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:03:28,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:03:28,273 INFO L255 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 06:03:28,276 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:03:28,675 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 118 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-11-09 06:03:28,675 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:03:28,676 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:03:28,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [720571455] [2024-11-09 06:03:28,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [720571455] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:03:28,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:03:28,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 06:03:28,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060507779] [2024-11-09 06:03:28,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:03:28,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:03:28,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:03:28,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:03:28,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:03:28,680 INFO L87 Difference]: Start difference. First operand 55 states and 66 transitions. Second operand has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 8 states have internal predecessors, (37), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-09 06:03:29,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:03:29,407 INFO L93 Difference]: Finished difference Result 166 states and 202 transitions. [2024-11-09 06:03:29,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 06:03:29,411 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 8 states have internal predecessors, (37), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 81 [2024-11-09 06:03:29,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:03:29,413 INFO L225 Difference]: With dead ends: 166 [2024-11-09 06:03:29,413 INFO L226 Difference]: Without dead ends: 140 [2024-11-09 06:03:29,416 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=93, Invalid=179, Unknown=0, NotChecked=0, Total=272 [2024-11-09 06:03:29,418 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 140 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:03:29,418 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 212 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 06:03:29,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2024-11-09 06:03:29,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 104. [2024-11-09 06:03:29,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 78 states have (on average 1.1153846153846154) internal successors, (87), 78 states have internal predecessors, (87), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-09 06:03:29,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 127 transitions. [2024-11-09 06:03:29,446 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 127 transitions. Word has length 81 [2024-11-09 06:03:29,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:03:29,447 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 127 transitions. [2024-11-09 06:03:29,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 8 states have internal predecessors, (37), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-09 06:03:29,447 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 127 transitions. [2024-11-09 06:03:29,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-09 06:03:29,450 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:03:29,450 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:03:29,457 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:03:29,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:03:29,651 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:03:29,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:03:29,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1021863552, now seen corresponding path program 1 times [2024-11-09 06:03:29,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:03:29,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1751695863] [2024-11-09 06:03:29,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:03:29,653 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 [2024-11-09 06:03:29,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:03:29,655 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 06:03:29,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-09 06:03:29,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:03:29,865 INFO L255 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 06:03:29,875 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:05:32,690 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 27 proven. 9 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-11-09 06:05:32,691 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:06:50,834 WARN L286 SmtUtils]: Spent 9.73s on a formula simplification. DAG size of input: 246 DAG size of output: 244 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:07:22,994 WARN L286 SmtUtils]: Spent 16.81s on a formula simplification. DAG size of input: 385 DAG size of output: 387 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:07:55,486 WARN L286 SmtUtils]: Spent 12.79s on a formula simplification that was a NOOP. DAG size: 360 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:08:31,005 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-11-09 06:08:31,006 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:08:31,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1751695863] [2024-11-09 06:08:31,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1751695863] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 06:08:31,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:08:31,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [12] total 23 [2024-11-09 06:08:31,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964617878] [2024-11-09 06:08:31,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:08:31,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 06:08:31,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:08:31,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 06:08:31,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=384, Unknown=1, NotChecked=0, Total=506 [2024-11-09 06:08:31,010 INFO L87 Difference]: Start difference. First operand 104 states and 127 transitions. Second operand has 12 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-09 06:08:36,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 06:08:37,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 06:08:39,476 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 06:08:40,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 06:09:13,988 WARN L286 SmtUtils]: Spent 31.60s on a formula simplification that was a NOOP. DAG size: 493 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:09:15,521 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 06:10:03,574 WARN L286 SmtUtils]: Spent 43.02s on a formula simplification. DAG size of input: 658 DAG size of output: 1565 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:10:51,467 WARN L286 SmtUtils]: Spent 41.27s on a formula simplification. DAG size of input: 662 DAG size of output: 1569 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:10:54,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 06:11:44,320 WARN L286 SmtUtils]: Spent 44.43s on a formula simplification. DAG size of input: 662 DAG size of output: 1569 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:11:48,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 06:11:50,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 06:11:52,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:11:52,887 INFO L93 Difference]: Finished difference Result 145 states and 168 transitions. [2024-11-09 06:11:52,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 06:11:52,892 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 81 [2024-11-09 06:11:52,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:11:52,895 INFO L225 Difference]: With dead ends: 145 [2024-11-09 06:11:52,895 INFO L226 Difference]: Without dead ends: 143 [2024-11-09 06:11:52,896 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 257.2s TimeCoverageRelationStatistics Valid=169, Invalid=531, Unknown=2, NotChecked=0, Total=702 [2024-11-09 06:11:52,897 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 123 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 20 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.6s IncrementalHoareTripleChecker+Time [2024-11-09 06:11:52,898 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 136 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 129 Invalid, 2 Unknown, 0 Unchecked, 24.6s Time] [2024-11-09 06:11:52,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2024-11-09 06:11:52,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 118. [2024-11-09 06:11:52,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 89 states have (on average 1.1123595505617978) internal successors, (99), 89 states have internal predecessors, (99), 20 states have call successors, (20), 8 states have call predecessors, (20), 8 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-09 06:11:52,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 139 transitions. [2024-11-09 06:11:52,973 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 139 transitions. Word has length 81 [2024-11-09 06:11:52,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:11:52,973 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 139 transitions. [2024-11-09 06:11:52,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-09 06:11:52,974 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 139 transitions. [2024-11-09 06:11:52,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-09 06:11:52,976 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:11:52,976 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:11:52,983 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2024-11-09 06:11:53,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:11:53,181 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:11:53,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:11:53,182 INFO L85 PathProgramCache]: Analyzing trace with hash 753143810, now seen corresponding path program 1 times [2024-11-09 06:11:53,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:11:53,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [705913367] [2024-11-09 06:11:53,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:11:53,182 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 [2024-11-09 06:11:53,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:11:53,184 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 06:11:53,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_705bd3be-77ea-4c2c-9115-8c6b11cc05c8/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-09 06:11:53,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:11:53,324 INFO L255 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-09 06:11:53,328 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:13:27,858 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 121 proven. 9 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2024-11-09 06:13:27,859 INFO L311 TraceCheckSpWp]: Computing backward predicates...