./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-56.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 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_002766b4-c25b-46e4-ba7f-1c34ed35c3be/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_002766b4-c25b-46e4-ba7f-1c34ed35c3be/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_002766b4-c25b-46e4-ba7f-1c34ed35c3be/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_002766b4-c25b-46e4-ba7f-1c34ed35c3be/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-56.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_002766b4-c25b-46e4-ba7f-1c34ed35c3be/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_002766b4-c25b-46e4-ba7f-1c34ed35c3be/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 97d791cbaec134197a8e3d1f03f35ec97aa0c52c94b35e8b29d7fd873617c9b5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:12:32,845 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:12:32,934 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_002766b4-c25b-46e4-ba7f-1c34ed35c3be/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:12:32,940 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:12:32,940 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:12:32,965 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:12:32,966 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:12:32,966 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:12:32,967 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:12:32,968 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:12:32,969 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:12:32,969 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:12:32,970 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:12:32,970 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:12:32,971 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:12:32,972 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:12:32,972 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:12:32,973 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:12:32,973 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:12:32,974 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:12:32,975 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:12:32,975 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:12:32,976 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:12:32,977 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:12:32,988 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:12:32,988 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:12:32,989 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:12:32,989 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:12:32,990 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:12:32,990 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:12:32,990 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:12:32,991 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:12:32,991 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:12:32,992 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:12:32,992 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:12:32,993 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:12:32,994 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:12:32,994 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:12:32,995 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:12:32,995 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:12:32,996 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:12:32,996 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:12:32,996 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:12:32,996 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:12:32,997 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:12:32,997 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:12:32,997 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:12:32,998 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_002766b4-c25b-46e4-ba7f-1c34ed35c3be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_002766b4-c25b-46e4-ba7f-1c34ed35c3be/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97d791cbaec134197a8e3d1f03f35ec97aa0c52c94b35e8b29d7fd873617c9b5 [2023-11-23 21:12:33,265 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:12:33,307 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:12:33,311 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:12:33,314 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:12:33,314 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:12:33,316 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_002766b4-c25b-46e4-ba7f-1c34ed35c3be/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-56.i [2023-11-23 21:12:36,484 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:12:36,760 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:12:36,761 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_002766b4-c25b-46e4-ba7f-1c34ed35c3be/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-56.i [2023-11-23 21:12:36,770 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_002766b4-c25b-46e4-ba7f-1c34ed35c3be/bin/utaipan-verify-mE87zJ7Ire/data/d39a67854/493499f14d8642dc94453235be877720/FLAG333bd39ee [2023-11-23 21:12:36,785 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_002766b4-c25b-46e4-ba7f-1c34ed35c3be/bin/utaipan-verify-mE87zJ7Ire/data/d39a67854/493499f14d8642dc94453235be877720 [2023-11-23 21:12:36,788 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:12:36,790 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:12:36,791 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:12:36,792 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:12:36,806 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:12:36,807 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:12:36" (1/1) ... [2023-11-23 21:12:36,808 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f1774eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:36, skipping insertion in model container [2023-11-23 21:12:36,809 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:12:36" (1/1) ... [2023-11-23 21:12:36,859 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:12:37,019 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_002766b4-c25b-46e4-ba7f-1c34ed35c3be/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-56.i[916,929] [2023-11-23 21:12:37,071 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:12:37,089 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:12:37,102 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_002766b4-c25b-46e4-ba7f-1c34ed35c3be/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-56.i[916,929] [2023-11-23 21:12:37,132 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:12:37,150 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:12:37,150 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:37 WrapperNode [2023-11-23 21:12:37,151 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:12:37,152 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:12:37,152 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:12:37,152 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:12:37,159 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:37" (1/1) ... [2023-11-23 21:12:37,169 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:37" (1/1) ... [2023-11-23 21:12:37,218 INFO L138 Inliner]: procedures = 26, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 146 [2023-11-23 21:12:37,219 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:12:37,228 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:12:37,228 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:12:37,228 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:12:37,237 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:37" (1/1) ... [2023-11-23 21:12:37,238 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:37" (1/1) ... [2023-11-23 21:12:37,241 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:37" (1/1) ... [2023-11-23 21:12:37,242 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:37" (1/1) ... [2023-11-23 21:12:37,253 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:37" (1/1) ... [2023-11-23 21:12:37,256 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:37" (1/1) ... [2023-11-23 21:12:37,260 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:37" (1/1) ... [2023-11-23 21:12:37,262 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:37" (1/1) ... [2023-11-23 21:12:37,267 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:12:37,268 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:12:37,268 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:12:37,268 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:12:37,269 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:37" (1/1) ... [2023-11-23 21:12:37,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:12:37,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_002766b4-c25b-46e4-ba7f-1c34ed35c3be/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:12:37,337 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_002766b4-c25b-46e4-ba7f-1c34ed35c3be/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:12:37,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_002766b4-c25b-46e4-ba7f-1c34ed35c3be/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:12:37,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:12:37,385 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:12:37,385 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:12:37,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:12:37,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:12:37,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:12:37,515 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:12:37,517 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:12:37,909 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:12:38,166 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:12:38,166 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:12:38,168 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:12:38 BoogieIcfgContainer [2023-11-23 21:12:38,168 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:12:38,171 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:12:38,171 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:12:38,175 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:12:38,175 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:12:36" (1/3) ... [2023-11-23 21:12:38,176 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@581b81ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:12:38, skipping insertion in model container [2023-11-23 21:12:38,176 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:37" (2/3) ... [2023-11-23 21:12:38,176 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@581b81ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:12:38, skipping insertion in model container [2023-11-23 21:12:38,176 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:12:38" (3/3) ... [2023-11-23 21:12:38,178 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-56.i [2023-11-23 21:12:38,198 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:12:38,198 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:12:38,259 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:12:38,266 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;@7b217776, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:12:38,266 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:12:38,271 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-23 21:12:38,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-23 21:12:38,280 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:12:38,281 INFO L195 NwaCegarLoop]: trace histogram [20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:12:38,282 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:12:38,286 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:12:38,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1883781924, now seen corresponding path program 1 times [2023-11-23 21:12:38,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:12:38,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006342974] [2023-11-23 21:12:38,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:12:38,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:12:38,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:12:38,993 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:12:39,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:12:39,180 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 21:12:39,183 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:12:39,184 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:12:39,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:12:39,191 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-23 21:12:39,199 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:12:39,276 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:12:39 BoogieIcfgContainer [2023-11-23 21:12:39,277 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:12:39,277 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:12:39,277 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:12:39,278 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:12:39,278 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:12:38" (3/4) ... [2023-11-23 21:12:39,280 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 21:12:39,282 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:12:39,283 INFO L158 Benchmark]: Toolchain (without parser) took 2493.10ms. Allocated memory is still 161.5MB. Free memory was 131.0MB in the beginning and 81.6MB in the end (delta: 49.5MB). Peak memory consumption was 49.2MB. Max. memory is 16.1GB. [2023-11-23 21:12:39,284 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 100.7MB. Free memory was 52.2MB in the beginning and 52.1MB in the end (delta: 117.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:12:39,284 INFO L158 Benchmark]: CACSL2BoogieTranslator took 359.63ms. Allocated memory is still 161.5MB. Free memory was 131.0MB in the beginning and 117.3MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-23 21:12:39,285 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.23ms. Allocated memory is still 161.5MB. Free memory was 117.3MB in the beginning and 113.9MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:12:39,286 INFO L158 Benchmark]: Boogie Preprocessor took 39.39ms. Allocated memory is still 161.5MB. Free memory was 113.9MB in the beginning and 111.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:12:39,286 INFO L158 Benchmark]: RCFGBuilder took 900.71ms. Allocated memory is still 161.5MB. Free memory was 111.8MB in the beginning and 67.0MB in the end (delta: 44.8MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2023-11-23 21:12:39,287 INFO L158 Benchmark]: TraceAbstraction took 1105.54ms. Allocated memory is still 161.5MB. Free memory was 66.2MB in the beginning and 81.6MB in the end (delta: -15.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:12:39,288 INFO L158 Benchmark]: Witness Printer took 4.57ms. Allocated memory is still 161.5MB. Free memory is still 81.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:12:39,291 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 100.7MB. Free memory was 52.2MB in the beginning and 52.1MB in the end (delta: 117.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 359.63ms. Allocated memory is still 161.5MB. Free memory was 131.0MB in the beginning and 117.3MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.23ms. Allocated memory is still 161.5MB. Free memory was 117.3MB in the beginning and 113.9MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.39ms. Allocated memory is still 161.5MB. Free memory was 113.9MB in the beginning and 111.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 900.71ms. Allocated memory is still 161.5MB. Free memory was 111.8MB in the beginning and 67.0MB in the end (delta: 44.8MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1105.54ms. Allocated memory is still 161.5MB. Free memory was 66.2MB in the beginning and 81.6MB in the end (delta: -15.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.57ms. Allocated memory is still 161.5MB. Free memory is still 81.6MB. 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 shiftRight at line 40, overapproximation of shiftLeft at line 49. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 1; [L23] signed char var_1_3 = 0; [L24] unsigned char var_1_5 = 128; [L25] unsigned char var_1_6 = 16; [L26] unsigned char var_1_7 = 2; [L27] unsigned char var_1_8 = 8; [L28] signed long int var_1_9 = 10; [L29] unsigned char var_1_10 = 0; [L30] unsigned char var_1_12 = 0; [L31] signed long int var_1_13 = 99; [L32] unsigned char var_1_14 = 64; [L33] unsigned char var_1_16 = 0; [L34] unsigned char var_1_17 = 0; [L35] unsigned char var_1_18 = 1; [L36] unsigned char last_1_var_1_14 = 64; [L111] isInitial = 1 [L112] FCALL initially() [L113] COND TRUE 1 [L114] CALL updateLastVariables() [L104] last_1_var_1_14 = var_1_14 [L114] RET updateLastVariables() [L115] CALL updateVariables() [L72] var_1_3 = __VERIFIER_nondet_char() [L73] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, var_1_10=0, var_1_12=0, var_1_13=99, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=1, var_1_5=128, var_1_6=16, var_1_7=2, var_1_8=8, var_1_9=10] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, last_1_var_1_14=64, var_1_10=0, var_1_12=0, var_1_13=99, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=1, var_1_5=128, var_1_6=16, var_1_7=2, var_1_8=8, var_1_9=10] [L74] CALL assume_abort_if_not(var_1_3 <= 16) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, var_1_10=0, var_1_12=0, var_1_13=99, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=1, var_1_5=128, var_1_6=16, var_1_7=2, var_1_8=8, var_1_9=10] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_3 <= 16) VAL [isInitial=1, last_1_var_1_14=64, var_1_10=0, var_1_12=0, var_1_13=99, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=1, var_1_5=128, var_1_6=16, var_1_7=2, var_1_8=8, var_1_9=10] [L75] var_1_5 = __VERIFIER_nondet_uchar() [L76] CALL assume_abort_if_not(var_1_5 >= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, var_1_10=0, var_1_12=0, var_1_13=99, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=1, var_1_5=128, var_1_6=16, var_1_7=2, var_1_8=8, var_1_9=10] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not(var_1_5 >= 127) VAL [isInitial=1, last_1_var_1_14=64, var_1_10=0, var_1_12=0, var_1_13=99, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=1, var_1_5=128, var_1_6=16, var_1_7=2, var_1_8=8, var_1_9=10] [L77] CALL assume_abort_if_not(var_1_5 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, var_1_10=0, var_1_12=0, var_1_13=99, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=1, var_1_5=128, var_1_6=16, var_1_7=2, var_1_8=8, var_1_9=10] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(var_1_5 <= 254) VAL [isInitial=1, last_1_var_1_14=64, var_1_10=0, var_1_12=0, var_1_13=99, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=1, var_1_5=128, var_1_6=16, var_1_7=2, var_1_8=8, var_1_9=10] [L78] var_1_6 = __VERIFIER_nondet_uchar() [L79] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, var_1_10=0, var_1_12=0, var_1_13=99, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=1, var_1_5=128, var_1_7=2, var_1_8=8, var_1_9=10] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, last_1_var_1_14=64, var_1_10=0, var_1_12=0, var_1_13=99, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=1, var_1_5=128, var_1_7=2, var_1_8=8, var_1_9=10] [L80] CALL assume_abort_if_not(var_1_6 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, var_1_10=0, var_1_12=0, var_1_13=99, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=1, var_1_5=128, var_1_6=127, var_1_7=2, var_1_8=8, var_1_9=10] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(var_1_6 <= 127) VAL [isInitial=1, last_1_var_1_14=64, var_1_10=0, var_1_12=0, var_1_13=99, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=1, var_1_5=128, var_1_6=127, var_1_7=2, var_1_8=8, var_1_9=10] [L81] var_1_7 = __VERIFIER_nondet_uchar() [L82] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, var_1_10=0, var_1_12=0, var_1_13=99, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=1, var_1_5=128, var_1_6=127, var_1_8=8, var_1_9=10] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, last_1_var_1_14=64, var_1_10=0, var_1_12=0, var_1_13=99, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=1, var_1_5=128, var_1_6=127, var_1_8=8, var_1_9=10] [L83] CALL assume_abort_if_not(var_1_7 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, var_1_10=0, var_1_12=0, var_1_13=99, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=1, var_1_5=128, var_1_6=127, var_1_7=126, var_1_8=8, var_1_9=10] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(var_1_7 <= 127) VAL [isInitial=1, last_1_var_1_14=64, var_1_10=0, var_1_12=0, var_1_13=99, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=1, var_1_5=128, var_1_6=127, var_1_7=126, var_1_8=8, var_1_9=10] [L84] var_1_8 = __VERIFIER_nondet_uchar() [L85] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, var_1_10=0, var_1_12=0, var_1_13=99, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=1, var_1_5=128, var_1_6=127, var_1_7=126, var_1_9=10] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, last_1_var_1_14=64, var_1_10=0, var_1_12=0, var_1_13=99, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=1, var_1_5=128, var_1_6=127, var_1_7=126, var_1_9=10] [L86] CALL assume_abort_if_not(var_1_8 <= 64) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, var_1_10=0, var_1_12=0, var_1_13=99, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=1, var_1_5=128, var_1_6=127, var_1_7=126, var_1_8=64, var_1_9=10] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not(var_1_8 <= 64) VAL [isInitial=1, last_1_var_1_14=64, var_1_10=0, var_1_12=0, var_1_13=99, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=1, var_1_5=128, var_1_6=127, var_1_7=126, var_1_8=64, var_1_9=10] [L87] var_1_10 = __VERIFIER_nondet_uchar() [L88] CALL assume_abort_if_not(var_1_10 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, var_1_12=0, var_1_13=99, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=1, var_1_5=128, var_1_6=127, var_1_7=126, var_1_8=64, var_1_9=10] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(var_1_10 >= 0) VAL [isInitial=1, last_1_var_1_14=64, var_1_12=0, var_1_13=99, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=1, var_1_5=128, var_1_6=127, var_1_7=126, var_1_8=64, var_1_9=10] [L89] CALL assume_abort_if_not(var_1_10 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, var_1_10=1, var_1_12=0, var_1_13=99, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=1, var_1_5=128, var_1_6=127, var_1_7=126, var_1_8=64, var_1_9=10] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not(var_1_10 <= 1) VAL [isInitial=1, last_1_var_1_14=64, var_1_10=1, var_1_12=0, var_1_13=99, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=1, var_1_5=128, var_1_6=127, var_1_7=126, var_1_8=64, var_1_9=10] [L90] var_1_12 = __VERIFIER_nondet_uchar() [L91] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, var_1_10=1, var_1_13=99, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=1, var_1_5=128, var_1_6=127, var_1_7=126, var_1_8=64, var_1_9=10] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, last_1_var_1_14=64, var_1_10=1, var_1_13=99, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=1, var_1_5=128, var_1_6=127, var_1_7=126, var_1_8=64, var_1_9=10] [L92] CALL assume_abort_if_not(var_1_12 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, var_1_10=1, var_1_12=0, var_1_13=99, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=1, var_1_5=128, var_1_6=127, var_1_7=126, var_1_8=64, var_1_9=10] [L20] COND FALSE !(!cond) [L92] RET assume_abort_if_not(var_1_12 <= 1) VAL [isInitial=1, last_1_var_1_14=64, var_1_10=1, var_1_12=0, var_1_13=99, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=1, var_1_5=128, var_1_6=127, var_1_7=126, var_1_8=64, var_1_9=10] [L93] var_1_13 = __VERIFIER_nondet_long() [L94] CALL assume_abort_if_not(var_1_13 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, var_1_10=1, var_1_12=0, var_1_13=10, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=1, var_1_5=128, var_1_6=127, var_1_7=126, var_1_8=64, var_1_9=10] [L20] COND FALSE !(!cond) [L94] RET assume_abort_if_not(var_1_13 >= -2147483648) VAL [isInitial=1, last_1_var_1_14=64, var_1_10=1, var_1_12=0, var_1_13=10, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=1, var_1_5=128, var_1_6=127, var_1_7=126, var_1_8=64, var_1_9=10] [L95] CALL assume_abort_if_not(var_1_13 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, var_1_10=1, var_1_12=0, var_1_13=10, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=1, var_1_5=128, var_1_6=127, var_1_7=126, var_1_8=64, var_1_9=10] [L20] COND FALSE !(!cond) [L95] RET assume_abort_if_not(var_1_13 <= 2147483647) VAL [isInitial=1, last_1_var_1_14=64, var_1_10=1, var_1_12=0, var_1_13=10, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=1, var_1_5=128, var_1_6=127, var_1_7=126, var_1_8=64, var_1_9=10] [L96] var_1_17 = __VERIFIER_nondet_uchar() [L97] CALL assume_abort_if_not(var_1_17 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, var_1_10=1, var_1_12=0, var_1_13=10, var_1_14=64, var_1_16=0, var_1_18=1, var_1_1=1, var_1_3=1, var_1_5=128, var_1_6=127, var_1_7=126, var_1_8=64, var_1_9=10] [L20] COND FALSE !(!cond) [L97] RET assume_abort_if_not(var_1_17 >= 0) VAL [isInitial=1, last_1_var_1_14=64, var_1_10=1, var_1_12=0, var_1_13=10, var_1_14=64, var_1_16=0, var_1_18=1, var_1_1=1, var_1_3=1, var_1_5=128, var_1_6=127, var_1_7=126, var_1_8=64, var_1_9=10] [L98] CALL assume_abort_if_not(var_1_17 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, var_1_10=1, var_1_12=0, var_1_13=10, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=1, var_1_5=128, var_1_6=127, var_1_7=126, var_1_8=64, var_1_9=10] [L20] COND FALSE !(!cond) [L98] RET assume_abort_if_not(var_1_17 <= 0) VAL [isInitial=1, last_1_var_1_14=64, var_1_10=1, var_1_12=0, var_1_13=10, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=1, var_1_5=128, var_1_6=127, var_1_7=126, var_1_8=64, var_1_9=10] [L99] var_1_18 = __VERIFIER_nondet_uchar() [L100] CALL assume_abort_if_not(var_1_18 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, var_1_10=1, var_1_12=0, var_1_13=10, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=1, var_1_5=128, var_1_6=127, var_1_7=126, var_1_8=64, var_1_9=10] [L20] COND FALSE !(!cond) [L100] RET assume_abort_if_not(var_1_18 >= 1) VAL [isInitial=1, last_1_var_1_14=64, var_1_10=1, var_1_12=0, var_1_13=10, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=1, var_1_5=128, var_1_6=127, var_1_7=126, var_1_8=64, var_1_9=10] [L101] CALL assume_abort_if_not(var_1_18 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, var_1_10=1, var_1_12=0, var_1_13=10, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=1, var_1_5=128, var_1_6=127, var_1_7=126, var_1_8=64, var_1_9=10] [L20] COND FALSE !(!cond) [L101] RET assume_abort_if_not(var_1_18 <= 1) VAL [isInitial=1, last_1_var_1_14=64, var_1_10=1, var_1_12=0, var_1_13=10, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=1, var_1_5=128, var_1_6=127, var_1_7=126, var_1_8=64, var_1_9=10] [L115] RET updateVariables() [L116] CALL step() [L40] EXPR last_1_var_1_14 >> var_1_3 [L40] COND FALSE !((last_1_var_1_14 >> var_1_3) >= last_1_var_1_14) [L43] var_1_1 = (((((var_1_6) < (var_1_3)) ? (var_1_6) : (var_1_3))) + (((((var_1_8 + 1)) < (var_1_7)) ? ((var_1_8 + 1)) : (var_1_7)))) [L45] COND TRUE (var_1_8 + var_1_1) >= var_1_7 [L46] var_1_14 = var_1_6 [L48] COND TRUE var_1_12 || var_1_10 [L49] EXPR var_1_8 << var_1_3 [L49] COND FALSE !(var_1_1 >= (var_1_8 << var_1_3)) [L56] var_1_16 = var_1_18 [L61] unsigned char stepLocal_1 = var_1_14; [L62] unsigned char stepLocal_0 = var_1_16; [L63] COND TRUE \read(var_1_16) [L64] COND TRUE stepLocal_0 || var_1_16 [L65] COND FALSE !(stepLocal_1 > var_1_6) [L116] RET step() [L117] CALL, EXPR property() [L107] EXPR last_1_var_1_14 >> var_1_3 [L107] EXPR (((((last_1_var_1_14 >> var_1_3) >= last_1_var_1_14) ? (var_1_1 == ((unsigned char) ((((var_1_3) < ((var_1_5 - ((((var_1_6) > (var_1_7)) ? (var_1_6) : (var_1_7)))))) ? (var_1_3) : ((var_1_5 - ((((var_1_6) > (var_1_7)) ? (var_1_6) : (var_1_7))))))))) : (var_1_1 == ((unsigned char) (((((var_1_6) < (var_1_3)) ? (var_1_6) : (var_1_3))) + (((((var_1_8 + 1)) < (var_1_7)) ? ((var_1_8 + 1)) : (var_1_7))))))) && (var_1_16 ? ((var_1_16 || var_1_16) ? ((var_1_14 > var_1_6) ? (var_1_9 == ((signed long int) var_1_13)) : 1) : 1) : 1)) && (((var_1_8 + var_1_1) >= var_1_7) ? (var_1_14 == ((unsigned char) var_1_6)) : 1)) && ((var_1_12 || var_1_10) ? ((var_1_1 >= (var_1_8 << var_1_3)) ? ((var_1_6 > var_1_7) ? (var_1_16 == ((unsigned char) var_1_17)) : (var_1_16 == ((unsigned char) 1))) : (var_1_16 == ((unsigned char) var_1_18))) : (var_1_16 == ((unsigned char) var_1_17))) [L107] EXPR (var_1_12 || var_1_10) ? ((var_1_1 >= (var_1_8 << var_1_3)) ? ((var_1_6 > var_1_7) ? (var_1_16 == ((unsigned char) var_1_17)) : (var_1_16 == ((unsigned char) 1))) : (var_1_16 == ((unsigned char) var_1_18))) : (var_1_16 == ((unsigned char) var_1_17)) [L107] EXPR var_1_8 << var_1_3 [L107] EXPR (var_1_12 || var_1_10) ? ((var_1_1 >= (var_1_8 << var_1_3)) ? ((var_1_6 > var_1_7) ? (var_1_16 == ((unsigned char) var_1_17)) : (var_1_16 == ((unsigned char) 1))) : (var_1_16 == ((unsigned char) var_1_18))) : (var_1_16 == ((unsigned char) var_1_17)) [L107] EXPR (((((last_1_var_1_14 >> var_1_3) >= last_1_var_1_14) ? (var_1_1 == ((unsigned char) ((((var_1_3) < ((var_1_5 - ((((var_1_6) > (var_1_7)) ? (var_1_6) : (var_1_7)))))) ? (var_1_3) : ((var_1_5 - ((((var_1_6) > (var_1_7)) ? (var_1_6) : (var_1_7))))))))) : (var_1_1 == ((unsigned char) (((((var_1_6) < (var_1_3)) ? (var_1_6) : (var_1_3))) + (((((var_1_8 + 1)) < (var_1_7)) ? ((var_1_8 + 1)) : (var_1_7))))))) && (var_1_16 ? ((var_1_16 || var_1_16) ? ((var_1_14 > var_1_6) ? (var_1_9 == ((signed long int) var_1_13)) : 1) : 1) : 1)) && (((var_1_8 + var_1_1) >= var_1_7) ? (var_1_14 == ((unsigned char) var_1_6)) : 1)) && ((var_1_12 || var_1_10) ? ((var_1_1 >= (var_1_8 << var_1_3)) ? ((var_1_6 > var_1_7) ? (var_1_16 == ((unsigned char) var_1_17)) : (var_1_16 == ((unsigned char) 1))) : (var_1_16 == ((unsigned char) var_1_18))) : (var_1_16 == ((unsigned char) var_1_17))) [L107-L108] return (((((last_1_var_1_14 >> var_1_3) >= last_1_var_1_14) ? (var_1_1 == ((unsigned char) ((((var_1_3) < ((var_1_5 - ((((var_1_6) > (var_1_7)) ? (var_1_6) : (var_1_7)))))) ? (var_1_3) : ((var_1_5 - ((((var_1_6) > (var_1_7)) ? (var_1_6) : (var_1_7))))))))) : (var_1_1 == ((unsigned char) (((((var_1_6) < (var_1_3)) ? (var_1_6) : (var_1_3))) + (((((var_1_8 + 1)) < (var_1_7)) ? ((var_1_8 + 1)) : (var_1_7))))))) && (var_1_16 ? ((var_1_16 || var_1_16) ? ((var_1_14 > var_1_6) ? (var_1_9 == ((signed long int) var_1_13)) : 1) : 1) : 1)) && (((var_1_8 + var_1_1) >= var_1_7) ? (var_1_14 == ((unsigned char) var_1_6)) : 1)) && ((var_1_12 || var_1_10) ? ((var_1_1 >= (var_1_8 << var_1_3)) ? ((var_1_6 > var_1_7) ? (var_1_16 == ((unsigned char) var_1_17)) : (var_1_16 == ((unsigned char) 1))) : (var_1_16 == ((unsigned char) var_1_18))) : (var_1_16 == ((unsigned char) var_1_17))) ; [L117] RET, EXPR property() [L117] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_14=64, var_1_10=1, var_1_12=0, var_1_13=10, var_1_14=127, var_1_16=1, var_1_17=0, var_1_18=1, var_1_1=66, var_1_3=1, var_1_5=128, var_1_6=127, var_1_7=126, var_1_8=64, var_1_9=10] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_14=64, var_1_10=1, var_1_12=0, var_1_13=10, var_1_14=127, var_1_16=1, var_1_17=0, var_1_18=1, var_1_1=66, var_1_3=1, var_1_5=128, var_1_6=127, var_1_7=126, var_1_8=64, var_1_9=10] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 1, TraceHistogramMax: 20, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 74 NumberOfCodeBlocks, 74 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-23 21:12:39,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_002766b4-c25b-46e4-ba7f-1c34ed35c3be/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_002766b4-c25b-46e4-ba7f-1c34ed35c3be/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_002766b4-c25b-46e4-ba7f-1c34ed35c3be/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_002766b4-c25b-46e4-ba7f-1c34ed35c3be/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_002766b4-c25b-46e4-ba7f-1c34ed35c3be/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-56.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_002766b4-c25b-46e4-ba7f-1c34ed35c3be/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_002766b4-c25b-46e4-ba7f-1c34ed35c3be/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 97d791cbaec134197a8e3d1f03f35ec97aa0c52c94b35e8b29d7fd873617c9b5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:12:42,087 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:12:42,223 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_002766b4-c25b-46e4-ba7f-1c34ed35c3be/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-23 21:12:42,232 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:12:42,233 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:12:42,282 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:12:42,283 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:12:42,283 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:12:42,284 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:12:42,289 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:12:42,290 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:12:42,290 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:12:42,291 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:12:42,292 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:12:42,293 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:12:42,293 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:12:42,295 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:12:42,295 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:12:42,295 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:12:42,297 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:12:42,297 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:12:42,298 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:12:42,298 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:12:42,298 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:12:42,299 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 21:12:42,299 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 21:12:42,300 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 21:12:42,300 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:12:42,300 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:12:42,301 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:12:42,302 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:12:42,302 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:12:42,303 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:12:42,303 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:12:42,303 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:12:42,304 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:12:42,304 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:12:42,304 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:12:42,305 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 21:12:42,306 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 21:12:42,306 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:12:42,306 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:12:42,306 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:12:42,307 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:12:42,307 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_002766b4-c25b-46e4-ba7f-1c34ed35c3be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_002766b4-c25b-46e4-ba7f-1c34ed35c3be/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97d791cbaec134197a8e3d1f03f35ec97aa0c52c94b35e8b29d7fd873617c9b5 [2023-11-23 21:12:42,723 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:12:42,755 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:12:42,758 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:12:42,759 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:12:42,759 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:12:42,761 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_002766b4-c25b-46e4-ba7f-1c34ed35c3be/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-56.i [2023-11-23 21:12:46,011 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:12:46,339 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:12:46,340 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_002766b4-c25b-46e4-ba7f-1c34ed35c3be/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-56.i [2023-11-23 21:12:46,354 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_002766b4-c25b-46e4-ba7f-1c34ed35c3be/bin/utaipan-verify-mE87zJ7Ire/data/1a19568d1/fbdf6bc6680c482f9e1cb44e631a2bfd/FLAG403e10762 [2023-11-23 21:12:46,375 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_002766b4-c25b-46e4-ba7f-1c34ed35c3be/bin/utaipan-verify-mE87zJ7Ire/data/1a19568d1/fbdf6bc6680c482f9e1cb44e631a2bfd [2023-11-23 21:12:46,383 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:12:46,385 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:12:46,390 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:12:46,390 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:12:46,396 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:12:46,397 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:12:46" (1/1) ... [2023-11-23 21:12:46,398 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6452b13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:46, skipping insertion in model container [2023-11-23 21:12:46,398 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:12:46" (1/1) ... [2023-11-23 21:12:46,442 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:12:46,632 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_002766b4-c25b-46e4-ba7f-1c34ed35c3be/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-56.i[916,929] [2023-11-23 21:12:46,682 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:12:46,699 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:12:46,713 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_002766b4-c25b-46e4-ba7f-1c34ed35c3be/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-56.i[916,929] [2023-11-23 21:12:46,741 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:12:46,761 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:12:46,762 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:46 WrapperNode [2023-11-23 21:12:46,762 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:12:46,763 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:12:46,763 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:12:46,763 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:12:46,771 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:46" (1/1) ... [2023-11-23 21:12:46,784 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:46" (1/1) ... [2023-11-23 21:12:46,814 INFO L138 Inliner]: procedures = 27, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 118 [2023-11-23 21:12:46,814 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:12:46,815 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:12:46,815 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:12:46,815 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:12:46,825 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:46" (1/1) ... [2023-11-23 21:12:46,825 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:46" (1/1) ... [2023-11-23 21:12:46,830 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:46" (1/1) ... [2023-11-23 21:12:46,830 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:46" (1/1) ... [2023-11-23 21:12:46,840 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:46" (1/1) ... [2023-11-23 21:12:46,844 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:46" (1/1) ... [2023-11-23 21:12:46,847 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:46" (1/1) ... [2023-11-23 21:12:46,849 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:46" (1/1) ... [2023-11-23 21:12:46,854 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:12:46,855 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:12:46,855 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:12:46,855 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:12:46,856 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:46" (1/1) ... [2023-11-23 21:12:46,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:12:46,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_002766b4-c25b-46e4-ba7f-1c34ed35c3be/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:12:46,897 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_002766b4-c25b-46e4-ba7f-1c34ed35c3be/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:12:46,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_002766b4-c25b-46e4-ba7f-1c34ed35c3be/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:12:46,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:12:46,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 21:12:46,961 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:12:46,961 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:12:46,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:12:46,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:12:47,079 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:12:47,082 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:12:47,479 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:12:47,544 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:12:47,544 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:12:47,545 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:12:47 BoogieIcfgContainer [2023-11-23 21:12:47,545 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:12:47,547 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:12:47,547 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:12:47,551 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:12:47,551 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:12:46" (1/3) ... [2023-11-23 21:12:47,552 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3557cae1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:12:47, skipping insertion in model container [2023-11-23 21:12:47,552 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:46" (2/3) ... [2023-11-23 21:12:47,553 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3557cae1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:12:47, skipping insertion in model container [2023-11-23 21:12:47,553 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:12:47" (3/3) ... [2023-11-23 21:12:47,554 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-56.i [2023-11-23 21:12:47,573 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:12:47,574 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:12:47,623 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:12:47,630 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;@5ee8eb0d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:12:47,630 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:12:47,635 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 29 states have (on average 1.4482758620689655) internal successors, (42), 30 states have internal predecessors, (42), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-23 21:12:47,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-11-23 21:12:47,650 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:12:47,651 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:12:47,651 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:12:47,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:12:47,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1863254693, now seen corresponding path program 1 times [2023-11-23 21:12:47,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:12:47,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [341633315] [2023-11-23 21:12:47,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:12:47,678 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 21:12:47,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_002766b4-c25b-46e4-ba7f-1c34ed35c3be/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:12:47,684 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_002766b4-c25b-46e4-ba7f-1c34ed35c3be/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 21:12:47,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_002766b4-c25b-46e4-ba7f-1c34ed35c3be/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 21:12:47,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:12:47,896 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 21:12:47,913 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:12:48,024 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked. [2023-11-23 21:12:48,026 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:12:48,027 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:12:48,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [341633315] [2023-11-23 21:12:48,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [341633315] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:12:48,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:12:48,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:12:48,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577061277] [2023-11-23 21:12:48,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:12:48,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:12:48,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:12:48,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:12:48,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:12:48,088 INFO L87 Difference]: Start difference. First operand has 52 states, 29 states have (on average 1.4482758620689655) internal successors, (42), 30 states have internal predecessors, (42), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-23 21:12:48,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:12:48,162 INFO L93 Difference]: Finished difference Result 101 states and 182 transitions. [2023-11-23 21:12:48,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:12:48,166 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) Word has length 120 [2023-11-23 21:12:48,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:12:48,177 INFO L225 Difference]: With dead ends: 101 [2023-11-23 21:12:48,177 INFO L226 Difference]: Without dead ends: 50 [2023-11-23 21:12:48,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:12:48,186 INFO L413 NwaCegarLoop]: 74 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, 74 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 21:12:48,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 74 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:12:48,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-11-23 21:12:48,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2023-11-23 21:12:48,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 28 states have (on average 1.3214285714285714) internal successors, (37), 28 states have internal predecessors, (37), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-23 21:12:48,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 77 transitions. [2023-11-23 21:12:48,255 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 77 transitions. Word has length 120 [2023-11-23 21:12:48,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:12:48,256 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 77 transitions. [2023-11-23 21:12:48,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-23 21:12:48,257 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 77 transitions. [2023-11-23 21:12:48,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-11-23 21:12:48,263 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:12:48,264 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:12:48,277 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_002766b4-c25b-46e4-ba7f-1c34ed35c3be/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 21:12:48,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_002766b4-c25b-46e4-ba7f-1c34ed35c3be/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 21:12:48,471 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:12:48,472 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:12:48,472 INFO L85 PathProgramCache]: Analyzing trace with hash -490706267, now seen corresponding path program 1 times [2023-11-23 21:12:48,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:12:48,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [434815284] [2023-11-23 21:12:48,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:12:48,474 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 21:12:48,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_002766b4-c25b-46e4-ba7f-1c34ed35c3be/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:12:48,476 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_002766b4-c25b-46e4-ba7f-1c34ed35c3be/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 21:12:48,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_002766b4-c25b-46e4-ba7f-1c34ed35c3be/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 21:12:48,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:12:48,627 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 21:12:48,639 INFO L285 TraceCheckSpWp]: Computing forward predicates...