./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-9.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c483e1be-2ab7-4105-9d6f-816a5a461c64/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c483e1be-2ab7-4105-9d6f-816a5a461c64/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c483e1be-2ab7-4105-9d6f-816a5a461c64/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c483e1be-2ab7-4105-9d6f-816a5a461c64/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-9.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c483e1be-2ab7-4105-9d6f-816a5a461c64/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c483e1be-2ab7-4105-9d6f-816a5a461c64/bin/utaipan-verify-mE87zJ7Ire --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 de05dd5e3bf0aa71208c9225f4fdf36a7def96a9278aed9da8f88e67d49713ff --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:33:26,927 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:33:27,030 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c483e1be-2ab7-4105-9d6f-816a5a461c64/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 20:33:27,036 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:33:27,036 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:33:27,068 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:33:27,069 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:33:27,070 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:33:27,071 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:33:27,076 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:33:27,077 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:33:27,077 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:33:27,078 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:33:27,079 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 20:33:27,080 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:33:27,080 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:33:27,081 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 20:33:27,081 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 20:33:27,082 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:33:27,082 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 20:33:27,083 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 20:33:27,083 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 20:33:27,084 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:33:27,085 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:33:27,085 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:33:27,085 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:33:27,086 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:33:27,086 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:33:27,086 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:33:27,087 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:33:27,087 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:33:27,088 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:33:27,088 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:33:27,088 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:33:27,088 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:33:27,089 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:33:27,089 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:33:27,089 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:33:27,089 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:33:27,089 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:33:27,090 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:33:27,090 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 20:33:27,090 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:33:27,090 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:33:27,091 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:33:27,091 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:33:27,091 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:33:27,091 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_c483e1be-2ab7-4105-9d6f-816a5a461c64/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c483e1be-2ab7-4105-9d6f-816a5a461c64/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> de05dd5e3bf0aa71208c9225f4fdf36a7def96a9278aed9da8f88e67d49713ff [2023-11-23 20:33:27,418 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:33:27,455 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:33:27,458 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:33:27,460 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:33:27,461 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:33:27,463 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c483e1be-2ab7-4105-9d6f-816a5a461c64/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-9.i [2023-11-23 20:33:30,582 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:33:30,902 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:33:30,903 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c483e1be-2ab7-4105-9d6f-816a5a461c64/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-9.i [2023-11-23 20:33:30,915 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c483e1be-2ab7-4105-9d6f-816a5a461c64/bin/utaipan-verify-mE87zJ7Ire/data/c321fab72/6cc6ab3f81e240b3995181f9f1140004/FLAGbdb27c129 [2023-11-23 20:33:31,168 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c483e1be-2ab7-4105-9d6f-816a5a461c64/bin/utaipan-verify-mE87zJ7Ire/data/c321fab72/6cc6ab3f81e240b3995181f9f1140004 [2023-11-23 20:33:31,171 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:33:31,173 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:33:31,174 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:33:31,175 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:33:31,180 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:33:31,181 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:33:31" (1/1) ... [2023-11-23 20:33:31,183 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@420607dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:31, skipping insertion in model container [2023-11-23 20:33:31,183 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:33:31" (1/1) ... [2023-11-23 20:33:31,218 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:33:31,414 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c483e1be-2ab7-4105-9d6f-816a5a461c64/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-9.i[915,928] [2023-11-23 20:33:31,462 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:33:31,475 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:33:31,485 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c483e1be-2ab7-4105-9d6f-816a5a461c64/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-9.i[915,928] [2023-11-23 20:33:31,504 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:33:31,521 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:33:31,525 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:31 WrapperNode [2023-11-23 20:33:31,526 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:33:31,527 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:33:31,527 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:33:31,528 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:33:31,535 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:31" (1/1) ... [2023-11-23 20:33:31,545 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:31" (1/1) ... [2023-11-23 20:33:31,580 INFO L138 Inliner]: procedures = 26, calls = 19, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 96 [2023-11-23 20:33:31,580 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:33:31,581 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:33:31,581 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:33:31,581 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:33:31,592 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:31" (1/1) ... [2023-11-23 20:33:31,592 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:31" (1/1) ... [2023-11-23 20:33:31,594 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:31" (1/1) ... [2023-11-23 20:33:31,595 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:31" (1/1) ... [2023-11-23 20:33:31,600 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:31" (1/1) ... [2023-11-23 20:33:31,605 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:31" (1/1) ... [2023-11-23 20:33:31,607 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:31" (1/1) ... [2023-11-23 20:33:31,609 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:31" (1/1) ... [2023-11-23 20:33:31,612 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:33:31,613 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:33:31,614 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:33:31,614 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:33:31,615 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:31" (1/1) ... [2023-11-23 20:33:31,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:33:31,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c483e1be-2ab7-4105-9d6f-816a5a461c64/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:33:31,652 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c483e1be-2ab7-4105-9d6f-816a5a461c64/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:33:31,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c483e1be-2ab7-4105-9d6f-816a5a461c64/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:33:31,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:33:31,716 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 20:33:31,716 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 20:33:31,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:33:31,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:33:31,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:33:31,819 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:33:31,822 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:33:32,166 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:33:32,349 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:33:32,355 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 20:33:32,357 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:33:32 BoogieIcfgContainer [2023-11-23 20:33:32,358 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:33:32,362 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:33:32,364 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:33:32,368 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:33:32,368 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:33:31" (1/3) ... [2023-11-23 20:33:32,370 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@affc452 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:33:32, skipping insertion in model container [2023-11-23 20:33:32,370 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:31" (2/3) ... [2023-11-23 20:33:32,372 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@affc452 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:33:32, skipping insertion in model container [2023-11-23 20:33:32,372 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:33:32" (3/3) ... [2023-11-23 20:33:32,374 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-9.i [2023-11-23 20:33:32,396 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:33:32,397 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:33:32,444 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:33:32,454 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@225b993f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:33:32,455 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:33:32,459 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-23 20:33:32,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-23 20:33:32,467 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:33:32,468 INFO L195 NwaCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:33:32,469 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:33:32,474 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:33:32,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1745532368, now seen corresponding path program 1 times [2023-11-23 20:33:32,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:33:32,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576700711] [2023-11-23 20:33:32,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:33:32,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:33:32,605 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 20:33:32,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [332672707] [2023-11-23 20:33:32,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:33:32,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:33:32,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c483e1be-2ab7-4105-9d6f-816a5a461c64/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:33:32,609 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c483e1be-2ab7-4105-9d6f-816a5a461c64/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 20:33:32,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c483e1be-2ab7-4105-9d6f-816a5a461c64/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 20:33:32,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:33:32,850 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:33:32,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:33:32,962 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 20:33:32,968 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 20:33:32,969 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 20:33:32,992 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c483e1be-2ab7-4105-9d6f-816a5a461c64/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-23 20:33:33,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c483e1be-2ab7-4105-9d6f-816a5a461c64/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-23 20:33:33,185 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-23 20:33:33,188 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 20:33:33,228 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 08:33:33 BoogieIcfgContainer [2023-11-23 20:33:33,228 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 20:33:33,229 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:33:33,229 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:33:33,229 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:33:33,230 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:33:32" (3/4) ... [2023-11-23 20:33:33,237 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 20:33:33,238 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:33:33,240 INFO L158 Benchmark]: Toolchain (without parser) took 2066.77ms. Allocated memory is still 155.2MB. Free memory was 124.4MB in the beginning and 113.4MB in the end (delta: 11.0MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. [2023-11-23 20:33:33,240 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 125.8MB. Free memory is still 85.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:33:33,242 INFO L158 Benchmark]: CACSL2BoogieTranslator took 351.81ms. Allocated memory is still 155.2MB. Free memory was 124.4MB in the beginning and 112.5MB in the end (delta: 11.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-23 20:33:33,242 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.38ms. Allocated memory is still 155.2MB. Free memory was 112.5MB in the beginning and 110.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:33:33,243 INFO L158 Benchmark]: Boogie Preprocessor took 31.65ms. Allocated memory is still 155.2MB. Free memory was 110.1MB in the beginning and 108.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:33:33,243 INFO L158 Benchmark]: RCFGBuilder took 744.44ms. Allocated memory is still 155.2MB. Free memory was 108.6MB in the beginning and 82.1MB in the end (delta: 26.5MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-23 20:33:33,244 INFO L158 Benchmark]: TraceAbstraction took 866.49ms. Allocated memory is still 155.2MB. Free memory was 81.4MB in the beginning and 114.2MB in the end (delta: -32.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:33:33,245 INFO L158 Benchmark]: Witness Printer took 9.71ms. Allocated memory is still 155.2MB. Free memory was 114.2MB in the beginning and 113.4MB in the end (delta: 706.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:33:33,248 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 125.8MB. Free memory is still 85.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 351.81ms. Allocated memory is still 155.2MB. Free memory was 124.4MB in the beginning and 112.5MB in the end (delta: 11.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.38ms. Allocated memory is still 155.2MB. Free memory was 112.5MB in the beginning and 110.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.65ms. Allocated memory is still 155.2MB. Free memory was 110.1MB in the beginning and 108.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 744.44ms. Allocated memory is still 155.2MB. Free memory was 108.6MB in the beginning and 82.1MB in the end (delta: 26.5MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 866.49ms. Allocated memory is still 155.2MB. Free memory was 81.4MB in the beginning and 114.2MB in the end (delta: -32.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 9.71ms. Allocated memory is still 155.2MB. Free memory was 114.2MB in the beginning and 113.4MB in the end (delta: 706.6kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of 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] signed long int var_1_10 = 9; [L28] signed long int var_1_11 = 0; [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] signed long int last_1_var_1_10 = 9; [L33] signed short int last_1_var_1_12 = 1; [L34] signed long int last_1_var_1_14 = -16; [L86] isInitial = 1 [L87] FCALL initially() [L88] COND TRUE 1 [L89] CALL updateLastVariables() [L76] last_1_var_1_1 = var_1_1 [L77] last_1_var_1_10 = var_1_10 [L78] last_1_var_1_12 = var_1_12 [L79] last_1_var_1_14 = var_1_14 [L89] RET updateLastVariables() [L90] 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=9, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10=9, var_1_11=0, 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=9, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10=9, var_1_11=0, 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=9, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10=9, var_1_11=0, var_1_12=1, var_1_14=-16, var_1_1=10, var_1_3=12, 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=9, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10=9, var_1_11=0, var_1_12=1, var_1_14=-16, var_1_1=10, var_1_3=12, 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=9, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10=9, var_1_11=0, var_1_12=1, var_1_14=-16, var_1_1=10, var_1_3=12, 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=9, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10=9, var_1_11=0, var_1_12=1, var_1_14=-16, var_1_1=10, var_1_3=12, 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=9, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10=9, var_1_11=0, var_1_12=1, var_1_14=-16, var_1_1=10, var_1_3=12, var_1_7=0, 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=9, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10=9, var_1_11=0, var_1_12=1, var_1_14=-16, var_1_1=10, var_1_3=12, var_1_7=0, var_1_8=100, var_1_9=32] [L71] var_1_11 = __VERIFIER_nondet_long() [L72] CALL assume_abort_if_not(var_1_11 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=9, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10=9, var_1_11=-2147483648, var_1_12=1, var_1_14=-16, var_1_1=10, var_1_3=12, var_1_7=0, var_1_8=100, var_1_9=32] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not(var_1_11 >= -2147483648) VAL [isInitial=1, last_1_var_1_10=9, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10=9, var_1_11=-2147483648, var_1_12=1, var_1_14=-16, var_1_1=10, var_1_3=12, var_1_7=0, var_1_8=100, var_1_9=32] [L73] CALL assume_abort_if_not(var_1_11 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=9, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10=9, var_1_11=-2147483648, var_1_12=1, var_1_14=-16, var_1_1=10, var_1_3=12, var_1_7=0, var_1_8=100, var_1_9=32] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(var_1_11 <= 2147483647) VAL [isInitial=1, last_1_var_1_10=9, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10=9, var_1_11=-2147483648, var_1_12=1, var_1_14=-16, var_1_1=10, var_1_3=12, var_1_7=0, var_1_8=100, var_1_9=32] [L90] RET updateVariables() [L91] CALL step() [L38] unsigned char stepLocal_0 = last_1_var_1_10 > last_1_var_1_10; [L39] COND FALSE !(((last_1_var_1_12 + last_1_var_1_1) < 10) || stepLocal_0) [L42] var_1_12 = last_1_var_1_12 [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 [L91] RET step() [L92] CALL, EXPR property() [L82] 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) [L82] EXPR 10 << var_1_12 [L82] 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) [L82-L83] 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 == ((signed long int) 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)) ; [L92] RET, EXPR property() [L92] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=9, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10=-2147483648, var_1_11=-2147483648, var_1_12=1, var_1_14=1, var_1_1=12, var_1_3=12, var_1_7=0, var_1_8=100, var_1_9=64] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=9, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10=-2147483648, var_1_11=-2147483648, var_1_12=1, var_1_14=1, var_1_1=12, var_1_3=12, var_1_7=0, var_1_8=100, var_1_9=64] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 6, 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=18occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-23 20:33:33,288 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c483e1be-2ab7-4105-9d6f-816a5a461c64/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c483e1be-2ab7-4105-9d6f-816a5a461c64/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c483e1be-2ab7-4105-9d6f-816a5a461c64/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c483e1be-2ab7-4105-9d6f-816a5a461c64/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c483e1be-2ab7-4105-9d6f-816a5a461c64/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-9.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c483e1be-2ab7-4105-9d6f-816a5a461c64/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c483e1be-2ab7-4105-9d6f-816a5a461c64/bin/utaipan-verify-mE87zJ7Ire --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 de05dd5e3bf0aa71208c9225f4fdf36a7def96a9278aed9da8f88e67d49713ff --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:33:36,081 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:33:36,187 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c483e1be-2ab7-4105-9d6f-816a5a461c64/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-23 20:33:36,193 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:33:36,194 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:33:36,221 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:33:36,222 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:33:36,222 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:33:36,223 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:33:36,224 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:33:36,224 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:33:36,225 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:33:36,225 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:33:36,226 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:33:36,226 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:33:36,227 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:33:36,228 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:33:36,228 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:33:36,229 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:33:36,229 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:33:36,230 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:33:36,230 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:33:36,231 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:33:36,231 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:33:36,232 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 20:33:36,232 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 20:33:36,232 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 20:33:36,233 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:33:36,233 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:33:36,234 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:33:36,234 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:33:36,234 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 20:33:36,235 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:33:36,235 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:33:36,236 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:33:36,236 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:33:36,236 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:33:36,237 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:33:36,237 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 20:33:36,237 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 20:33:36,237 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:33:36,238 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:33:36,238 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:33:36,238 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:33:36,238 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c483e1be-2ab7-4105-9d6f-816a5a461c64/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c483e1be-2ab7-4105-9d6f-816a5a461c64/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> de05dd5e3bf0aa71208c9225f4fdf36a7def96a9278aed9da8f88e67d49713ff [2023-11-23 20:33:36,646 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:33:36,674 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:33:36,679 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:33:36,681 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:33:36,681 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:33:36,683 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c483e1be-2ab7-4105-9d6f-816a5a461c64/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-9.i [2023-11-23 20:33:39,938 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:33:40,284 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:33:40,285 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c483e1be-2ab7-4105-9d6f-816a5a461c64/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-9.i [2023-11-23 20:33:40,296 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c483e1be-2ab7-4105-9d6f-816a5a461c64/bin/utaipan-verify-mE87zJ7Ire/data/0dd8ac602/317b7d90585646f18a7868d5b46106bd/FLAGb96ff503f [2023-11-23 20:33:40,314 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c483e1be-2ab7-4105-9d6f-816a5a461c64/bin/utaipan-verify-mE87zJ7Ire/data/0dd8ac602/317b7d90585646f18a7868d5b46106bd [2023-11-23 20:33:40,321 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:33:40,324 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:33:40,328 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:33:40,328 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:33:40,333 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:33:40,336 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:33:40" (1/1) ... [2023-11-23 20:33:40,337 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a9e797 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:40, skipping insertion in model container [2023-11-23 20:33:40,337 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:33:40" (1/1) ... [2023-11-23 20:33:40,376 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:33:40,537 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c483e1be-2ab7-4105-9d6f-816a5a461c64/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-9.i[915,928] [2023-11-23 20:33:40,579 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:33:40,596 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:33:40,610 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c483e1be-2ab7-4105-9d6f-816a5a461c64/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-9.i[915,928] [2023-11-23 20:33:40,630 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:33:40,648 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:33:40,648 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:40 WrapperNode [2023-11-23 20:33:40,649 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:33:40,650 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:33:40,650 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:33:40,650 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:33:40,657 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:40" (1/1) ... [2023-11-23 20:33:40,669 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:40" (1/1) ... [2023-11-23 20:33:40,732 INFO L138 Inliner]: procedures = 27, calls = 19, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 82 [2023-11-23 20:33:40,740 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:33:40,741 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:33:40,741 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:33:40,741 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:33:40,751 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:40" (1/1) ... [2023-11-23 20:33:40,751 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:40" (1/1) ... [2023-11-23 20:33:40,756 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:40" (1/1) ... [2023-11-23 20:33:40,757 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:40" (1/1) ... [2023-11-23 20:33:40,766 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:40" (1/1) ... [2023-11-23 20:33:40,769 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:40" (1/1) ... [2023-11-23 20:33:40,772 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:40" (1/1) ... [2023-11-23 20:33:40,774 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:40" (1/1) ... [2023-11-23 20:33:40,778 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:33:40,779 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:33:40,779 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:33:40,780 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:33:40,780 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:40" (1/1) ... [2023-11-23 20:33:40,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:33:40,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c483e1be-2ab7-4105-9d6f-816a5a461c64/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:33:40,839 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c483e1be-2ab7-4105-9d6f-816a5a461c64/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:33:40,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c483e1be-2ab7-4105-9d6f-816a5a461c64/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:33:40,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:33:40,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 20:33:40,887 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 20:33:40,887 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 20:33:40,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:33:40,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:33:40,971 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:33:40,974 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:33:41,231 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:33:41,336 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:33:41,340 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 20:33:41,341 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:33:41 BoogieIcfgContainer [2023-11-23 20:33:41,341 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:33:41,343 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:33:41,344 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:33:41,346 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:33:41,347 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:33:40" (1/3) ... [2023-11-23 20:33:41,347 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c1d17c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:33:41, skipping insertion in model container [2023-11-23 20:33:41,348 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:40" (2/3) ... [2023-11-23 20:33:41,348 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c1d17c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:33:41, skipping insertion in model container [2023-11-23 20:33:41,348 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:33:41" (3/3) ... [2023-11-23 20:33:41,350 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-9.i [2023-11-23 20:33:41,365 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:33:41,365 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:33:41,409 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:33:41,415 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7584e43e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:33:41,415 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:33:41,420 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 20 states have (on average 1.5) internal successors, (30), 21 states have internal predecessors, (30), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-23 20:33:41,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-23 20:33:41,430 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:33:41,431 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:33:41,431 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:33:41,437 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:33:41,438 INFO L85 PathProgramCache]: Analyzing trace with hash -206130345, now seen corresponding path program 1 times [2023-11-23 20:33:41,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:33:41,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1731082935] [2023-11-23 20:33:41,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:33:41,453 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 20:33:41,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c483e1be-2ab7-4105-9d6f-816a5a461c64/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:33:41,459 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c483e1be-2ab7-4105-9d6f-816a5a461c64/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 20:33:41,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c483e1be-2ab7-4105-9d6f-816a5a461c64/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-23 20:33:41,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:33:41,582 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 20:33:41,589 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:33:41,620 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2023-11-23 20:33:41,620 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 20:33:41,621 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 20:33:41,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1731082935] [2023-11-23 20:33:41,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1731082935] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:33:41,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:33:41,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 20:33:41,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18436992] [2023-11-23 20:33:41,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:33:41,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 20:33:41,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 20:33:41,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 20:33:41,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 20:33:41,660 INFO L87 Difference]: Start difference. First operand has 29 states, 20 states have (on average 1.5) internal successors, (30), 21 states have internal predecessors, (30), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-23 20:33:41,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:33:41,700 INFO L93 Difference]: Finished difference Result 54 states and 86 transitions. [2023-11-23 20:33:41,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 20:33:41,704 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 43 [2023-11-23 20:33:41,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:33:41,711 INFO L225 Difference]: With dead ends: 54 [2023-11-23 20:33:41,711 INFO L226 Difference]: Without dead ends: 26 [2023-11-23 20:33:41,715 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 20:33:41,718 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 20:33:41,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 20:33:41,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2023-11-23 20:33:41,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2023-11-23 20:33:41,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 18 states have internal predecessors, (22), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-23 20:33:41,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 34 transitions. [2023-11-23 20:33:41,760 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 34 transitions. Word has length 43 [2023-11-23 20:33:41,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:33:41,760 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 34 transitions. [2023-11-23 20:33:41,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-23 20:33:41,761 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 34 transitions. [2023-11-23 20:33:41,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-23 20:33:41,764 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:33:41,764 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:33:41,777 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c483e1be-2ab7-4105-9d6f-816a5a461c64/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-23 20:33:41,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c483e1be-2ab7-4105-9d6f-816a5a461c64/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 20:33:41,968 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:33:41,969 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:33:41,969 INFO L85 PathProgramCache]: Analyzing trace with hash 649359895, now seen corresponding path program 1 times [2023-11-23 20:33:41,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:33:41,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1220594936] [2023-11-23 20:33:41,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:33:41,971 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 20:33:41,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c483e1be-2ab7-4105-9d6f-816a5a461c64/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:33:41,973 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c483e1be-2ab7-4105-9d6f-816a5a461c64/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 20:33:41,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c483e1be-2ab7-4105-9d6f-816a5a461c64/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-23 20:33:42,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:33:42,110 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 20:33:42,114 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:33:42,656 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-23 20:33:42,656 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 20:33:42,657 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 20:33:42,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1220594936] [2023-11-23 20:33:42,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1220594936] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:33:42,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:33:42,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 20:33:42,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096042547] [2023-11-23 20:33:42,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:33:42,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 20:33:42,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 20:33:42,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 20:33:42,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 20:33:42,661 INFO L87 Difference]: Start difference. First operand 26 states and 34 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-23 20:33:42,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:33:42,874 INFO L93 Difference]: Finished difference Result 76 states and 100 transitions. [2023-11-23 20:33:42,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 20:33:42,875 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 43 [2023-11-23 20:33:42,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:33:42,877 INFO L225 Difference]: With dead ends: 76 [2023-11-23 20:33:42,877 INFO L226 Difference]: Without dead ends: 51 [2023-11-23 20:33:42,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-23 20:33:42,879 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 22 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 20:33:42,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 94 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 20:33:42,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2023-11-23 20:33:42,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 45. [2023-11-23 20:33:42,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 30 states have (on average 1.1666666666666667) internal successors, (35), 30 states have internal predecessors, (35), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-23 20:33:42,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 59 transitions. [2023-11-23 20:33:42,913 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 59 transitions. Word has length 43 [2023-11-23 20:33:42,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:33:42,914 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 59 transitions. [2023-11-23 20:33:42,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-23 20:33:42,914 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 59 transitions. [2023-11-23 20:33:42,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-23 20:33:42,918 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:33:42,919 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:33:42,931 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c483e1be-2ab7-4105-9d6f-816a5a461c64/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-23 20:33:43,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c483e1be-2ab7-4105-9d6f-816a5a461c64/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 20:33:43,123 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:33:43,124 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:33:43,124 INFO L85 PathProgramCache]: Analyzing trace with hash -159986731, now seen corresponding path program 1 times [2023-11-23 20:33:43,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:33:43,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1348793041] [2023-11-23 20:33:43,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:33:43,125 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 20:33:43,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c483e1be-2ab7-4105-9d6f-816a5a461c64/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:33:43,128 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c483e1be-2ab7-4105-9d6f-816a5a461c64/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 20:33:43,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c483e1be-2ab7-4105-9d6f-816a5a461c64/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-23 20:33:43,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:33:43,230 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-23 20:33:43,235 INFO L285 TraceCheckSpWp]: Computing forward predicates...