./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-92.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 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_0bef9fb3-be28-4e07-9db1-28ed1d45d760/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bef9fb3-be28-4e07-9db1-28ed1d45d760/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bef9fb3-be28-4e07-9db1-28ed1d45d760/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bef9fb3-be28-4e07-9db1-28ed1d45d760/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-92.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bef9fb3-be28-4e07-9db1-28ed1d45d760/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bef9fb3-be28-4e07-9db1-28ed1d45d760/bin/utaipan-verify-NcY6lQBIFX --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 343bf8c1f5b63cb570b33f072686383ced273d5beece8568668536fb7145f86c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:10:40,844 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:10:40,994 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bef9fb3-be28-4e07-9db1-28ed1d45d760/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-12 00:10:41,002 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:10:41,003 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:10:41,048 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:10:41,049 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:10:41,050 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:10:41,051 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:10:41,057 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:10:41,057 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:10:41,058 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:10:41,059 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:10:41,059 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:10:41,060 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:10:41,060 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:10:41,061 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:10:41,062 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:10:41,062 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:10:41,063 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:10:41,063 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:10:41,064 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:10:41,065 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:10:41,066 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:10:41,067 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:10:41,067 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:10:41,068 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:10:41,068 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:10:41,069 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:10:41,069 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:10:41,070 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:10:41,071 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:10:41,071 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:10:41,071 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:10:41,072 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:10:41,072 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:10:41,072 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:10:41,073 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:10:41,073 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:10:41,073 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:10:41,074 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:10:41,074 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:10:41,074 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:10:41,075 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:10:41,075 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:10:41,076 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_0bef9fb3-be28-4e07-9db1-28ed1d45d760/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bef9fb3-be28-4e07-9db1-28ed1d45d760/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 343bf8c1f5b63cb570b33f072686383ced273d5beece8568668536fb7145f86c [2023-11-12 00:10:41,441 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:10:41,473 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:10:41,476 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:10:41,478 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:10:41,478 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:10:41,480 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bef9fb3-be28-4e07-9db1-28ed1d45d760/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-92.i [2023-11-12 00:10:44,807 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:10:45,036 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:10:45,037 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bef9fb3-be28-4e07-9db1-28ed1d45d760/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-92.i [2023-11-12 00:10:45,050 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bef9fb3-be28-4e07-9db1-28ed1d45d760/bin/utaipan-verify-NcY6lQBIFX/data/ca7fc6255/ca881dc402494c589fe0da7b50da6d5c/FLAG54be3a926 [2023-11-12 00:10:45,068 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bef9fb3-be28-4e07-9db1-28ed1d45d760/bin/utaipan-verify-NcY6lQBIFX/data/ca7fc6255/ca881dc402494c589fe0da7b50da6d5c [2023-11-12 00:10:45,077 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:10:45,079 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:10:45,084 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:10:45,084 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:10:45,090 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:10:45,091 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:10:45" (1/1) ... [2023-11-12 00:10:45,092 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d93deb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:45, skipping insertion in model container [2023-11-12 00:10:45,093 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:10:45" (1/1) ... [2023-11-12 00:10:45,121 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:10:45,272 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_0bef9fb3-be28-4e07-9db1-28ed1d45d760/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-92.i[916,929] [2023-11-12 00:10:45,322 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:10:45,337 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:10:45,350 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_0bef9fb3-be28-4e07-9db1-28ed1d45d760/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-92.i[916,929] [2023-11-12 00:10:45,372 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:10:45,390 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:10:45,391 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:45 WrapperNode [2023-11-12 00:10:45,391 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:10:45,392 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:10:45,392 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:10:45,392 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:10:45,399 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:45" (1/1) ... [2023-11-12 00:10:45,408 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:45" (1/1) ... [2023-11-12 00:10:45,454 INFO L138 Inliner]: procedures = 26, calls = 34, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 145 [2023-11-12 00:10:45,455 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:10:45,455 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:10:45,456 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:10:45,456 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:10:45,470 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:45" (1/1) ... [2023-11-12 00:10:45,470 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:45" (1/1) ... [2023-11-12 00:10:45,480 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:45" (1/1) ... [2023-11-12 00:10:45,485 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:45" (1/1) ... [2023-11-12 00:10:45,495 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:45" (1/1) ... [2023-11-12 00:10:45,499 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:45" (1/1) ... [2023-11-12 00:10:45,501 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:45" (1/1) ... [2023-11-12 00:10:45,502 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:45" (1/1) ... [2023-11-12 00:10:45,506 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:10:45,507 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:10:45,519 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:10:45,520 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:10:45,521 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:45" (1/1) ... [2023-11-12 00:10:45,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:10:45,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bef9fb3-be28-4e07-9db1-28ed1d45d760/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:10:45,562 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bef9fb3-be28-4e07-9db1-28ed1d45d760/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:10:45,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bef9fb3-be28-4e07-9db1-28ed1d45d760/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:10:45,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:10:45,606 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:10:45,606 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:10:45,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:10:45,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:10:45,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:10:45,694 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:10:45,697 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:10:46,049 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:10:46,299 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:10:46,300 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:10:46,302 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:10:46 BoogieIcfgContainer [2023-11-12 00:10:46,302 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:10:46,304 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:10:46,304 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:10:46,309 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:10:46,309 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:10:45" (1/3) ... [2023-11-12 00:10:46,310 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ba4368b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:10:46, skipping insertion in model container [2023-11-12 00:10:46,311 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:45" (2/3) ... [2023-11-12 00:10:46,312 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ba4368b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:10:46, skipping insertion in model container [2023-11-12 00:10:46,312 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:10:46" (3/3) ... [2023-11-12 00:10:46,313 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-92.i [2023-11-12 00:10:46,330 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:10:46,330 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:10:46,383 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:10:46,390 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;@2145ac50, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:10:46,391 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:10:46,397 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-12 00:10:46,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-12 00:10:46,411 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:10:46,412 INFO L195 NwaCegarLoop]: trace histogram [21, 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] [2023-11-12 00:10:46,413 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:10:46,419 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:10:46,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1542946712, now seen corresponding path program 1 times [2023-11-12 00:10:46,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:10:46,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681437561] [2023-11-12 00:10:46,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:10:46,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:10:46,684 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 00:10:46,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [395495536] [2023-11-12 00:10:46,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:10:46,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:10:46,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bef9fb3-be28-4e07-9db1-28ed1d45d760/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:10:46,700 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bef9fb3-be28-4e07-9db1-28ed1d45d760/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:10:46,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bef9fb3-be28-4e07-9db1-28ed1d45d760/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 00:10:47,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:10:47,158 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 00:10:47,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:10:47,376 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-12 00:10:47,381 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 00:10:47,382 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 00:10:47,396 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bef9fb3-be28-4e07-9db1-28ed1d45d760/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 00:10:47,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bef9fb3-be28-4e07-9db1-28ed1d45d760/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:10:47,592 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-12 00:10:47,596 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:10:47,696 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:10:47 BoogieIcfgContainer [2023-11-12 00:10:47,700 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:10:47,701 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:10:47,701 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:10:47,701 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:10:47,702 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:10:46" (3/4) ... [2023-11-12 00:10:47,709 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 00:10:47,710 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:10:47,712 INFO L158 Benchmark]: Toolchain (without parser) took 2633.06ms. Allocated memory is still 174.1MB. Free memory was 133.9MB in the beginning and 135.7MB in the end (delta: -1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:10:47,713 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 119.5MB. Free memory is still 89.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:10:47,714 INFO L158 Benchmark]: CACSL2BoogieTranslator took 307.10ms. Allocated memory is still 174.1MB. Free memory was 133.4MB in the beginning and 121.3MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-12 00:10:47,715 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.12ms. Allocated memory is still 174.1MB. Free memory was 121.3MB in the beginning and 118.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:10:47,723 INFO L158 Benchmark]: Boogie Preprocessor took 50.59ms. Allocated memory is still 174.1MB. Free memory was 118.8MB in the beginning and 117.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:10:47,725 INFO L158 Benchmark]: RCFGBuilder took 795.39ms. Allocated memory is still 174.1MB. Free memory was 117.2MB in the beginning and 82.6MB in the end (delta: 34.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2023-11-12 00:10:47,726 INFO L158 Benchmark]: TraceAbstraction took 1395.92ms. Allocated memory is still 174.1MB. Free memory was 81.5MB in the beginning and 136.5MB in the end (delta: -55.0MB). Peak memory consumption was 39.5MB. Max. memory is 16.1GB. [2023-11-12 00:10:47,727 INFO L158 Benchmark]: Witness Printer took 9.81ms. Allocated memory is still 174.1MB. Free memory was 136.5MB in the beginning and 135.7MB in the end (delta: 852.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:10:47,734 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43ms. Allocated memory is still 119.5MB. Free memory is still 89.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 307.10ms. Allocated memory is still 174.1MB. Free memory was 133.4MB in the beginning and 121.3MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.12ms. Allocated memory is still 174.1MB. Free memory was 121.3MB in the beginning and 118.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.59ms. Allocated memory is still 174.1MB. Free memory was 118.8MB in the beginning and 117.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 795.39ms. Allocated memory is still 174.1MB. Free memory was 117.2MB in the beginning and 82.6MB in the end (delta: 34.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1395.92ms. Allocated memory is still 174.1MB. Free memory was 81.5MB in the beginning and 136.5MB in the end (delta: -55.0MB). Peak memory consumption was 39.5MB. Max. memory is 16.1GB. * Witness Printer took 9.81ms. Allocated memory is still 174.1MB. Free memory was 136.5MB in the beginning and 135.7MB in the end (delta: 852.0kB). 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 bitwiseAnd at line 42. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed char var_1_1 = 32; [L23] signed char var_1_2 = 2; [L24] signed char var_1_3 = 8; [L25] signed char var_1_4 = 0; [L26] signed char var_1_5 = 32; [L27] signed char var_1_6 = 10; [L28] signed long int var_1_7 = 1000000; [L29] signed long int var_1_8 = 16; [L30] signed long int var_1_9 = 15; [L31] signed short int var_1_10 = 500; [L32] unsigned short int var_1_11 = 8; [L33] unsigned char var_1_13 = 0; [L34] unsigned short int var_1_14 = 100; [L35] unsigned char var_1_15 = 0; [L36] unsigned char var_1_16 = 0; [L37] signed long int var_1_17 = 2; [L100] isInitial = 1 [L101] FCALL initially() [L102] COND TRUE 1 [L103] FCALL updateLastVariables() [L104] CALL updateVariables() [L61] var_1_2 = __VERIFIER_nondet_char() [L62] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=62, var_1_3=8, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=1000000, var_1_8=16, var_1_9=15] [L20] COND FALSE !(!cond) [L62] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=62, var_1_3=8, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=1000000, var_1_8=16, var_1_9=15] [L63] CALL assume_abort_if_not(var_1_2 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=62, var_1_3=8, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=1000000, var_1_8=16, var_1_9=15] [L20] COND FALSE !(!cond) [L63] RET assume_abort_if_not(var_1_2 <= 63) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=62, var_1_3=8, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=1000000, var_1_8=16, var_1_9=15] [L64] var_1_3 = __VERIFIER_nondet_char() [L65] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=62, var_1_3=63, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=1000000, var_1_8=16, var_1_9=15] [L20] COND FALSE !(!cond) [L65] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=62, var_1_3=63, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=1000000, var_1_8=16, var_1_9=15] [L66] CALL assume_abort_if_not(var_1_3 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=62, var_1_3=63, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=1000000, var_1_8=16, var_1_9=15] [L20] COND FALSE !(!cond) [L66] RET assume_abort_if_not(var_1_3 <= 63) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=62, var_1_3=63, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=1000000, var_1_8=16, var_1_9=15] [L67] var_1_4 = __VERIFIER_nondet_char() [L68] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=62, var_1_3=63, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=1000000, var_1_8=16, var_1_9=15] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=62, var_1_3=63, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=1000000, var_1_8=16, var_1_9=15] [L69] CALL assume_abort_if_not(var_1_4 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=62, var_1_3=63, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=1000000, var_1_8=16, var_1_9=15] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(var_1_4 <= 126) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=62, var_1_3=63, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=1000000, var_1_8=16, var_1_9=15] [L70] var_1_5 = __VERIFIER_nondet_char() [L71] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=62, var_1_3=63, var_1_4=0, var_1_5=63, var_1_6=10, var_1_7=1000000, var_1_8=16, var_1_9=15] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=62, var_1_3=63, var_1_4=0, var_1_5=63, var_1_6=10, var_1_7=1000000, var_1_8=16, var_1_9=15] [L72] CALL assume_abort_if_not(var_1_5 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=62, var_1_3=63, var_1_4=0, var_1_5=63, var_1_6=10, var_1_7=1000000, var_1_8=16, var_1_9=15] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not(var_1_5 <= 63) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=62, var_1_3=63, var_1_4=0, var_1_5=63, var_1_6=10, var_1_7=1000000, var_1_8=16, var_1_9=15] [L73] var_1_6 = __VERIFIER_nondet_char() [L74] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=62, var_1_3=63, var_1_4=0, var_1_5=63, var_1_6=62, var_1_7=1000000, var_1_8=16, var_1_9=15] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=62, var_1_3=63, var_1_4=0, var_1_5=63, var_1_6=62, var_1_7=1000000, var_1_8=16, var_1_9=15] [L75] CALL assume_abort_if_not(var_1_6 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=62, var_1_3=63, var_1_4=0, var_1_5=63, var_1_6=62, var_1_7=1000000, var_1_8=16, var_1_9=15] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(var_1_6 <= 63) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=62, var_1_3=63, var_1_4=0, var_1_5=63, var_1_6=62, var_1_7=1000000, var_1_8=16, var_1_9=15] [L76] var_1_8 = __VERIFIER_nondet_long() [L77] CALL assume_abort_if_not(var_1_8 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=62, var_1_3=63, var_1_4=0, var_1_5=63, var_1_6=62, var_1_7=1000000, var_1_8=-2147483648, var_1_9=15] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(var_1_8 >= -2147483648) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=62, var_1_3=63, var_1_4=0, var_1_5=63, var_1_6=62, var_1_7=1000000, var_1_8=-2147483648, var_1_9=15] [L78] CALL assume_abort_if_not(var_1_8 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=62, var_1_3=63, var_1_4=0, var_1_5=63, var_1_6=62, var_1_7=1000000, var_1_8=-2147483648, var_1_9=15] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(var_1_8 <= 2147483647) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=62, var_1_3=63, var_1_4=0, var_1_5=63, var_1_6=62, var_1_7=1000000, var_1_8=-2147483648, var_1_9=15] [L79] var_1_9 = __VERIFIER_nondet_long() [L80] CALL assume_abort_if_not(var_1_9 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=62, var_1_3=63, var_1_4=0, var_1_5=63, var_1_6=62, var_1_7=1000000, var_1_8=-2147483648, var_1_9=-2147483647] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(var_1_9 >= -2147483648) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=62, var_1_3=63, var_1_4=0, var_1_5=63, var_1_6=62, var_1_7=1000000, var_1_8=-2147483648, var_1_9=-2147483647] [L81] CALL assume_abort_if_not(var_1_9 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=62, var_1_3=63, var_1_4=0, var_1_5=63, var_1_6=62, var_1_7=1000000, var_1_8=-2147483648, var_1_9=-2147483647] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(var_1_9 <= 2147483647) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=62, var_1_3=63, var_1_4=0, var_1_5=63, var_1_6=62, var_1_7=1000000, var_1_8=-2147483648, var_1_9=-2147483647] [L82] var_1_14 = __VERIFIER_nondet_ushort() [L83] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=21, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=62, var_1_3=63, var_1_4=0, var_1_5=63, var_1_6=62, var_1_7=1000000, var_1_8=-2147483648, var_1_9=-2147483647] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=21, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=62, var_1_3=63, var_1_4=0, var_1_5=63, var_1_6=62, var_1_7=1000000, var_1_8=-2147483648, var_1_9=-2147483647] [L84] CALL assume_abort_if_not(var_1_14 <= 65535) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=21, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=62, var_1_3=63, var_1_4=0, var_1_5=63, var_1_6=62, var_1_7=1000000, var_1_8=-2147483648, var_1_9=-2147483647] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(var_1_14 <= 65535) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=21, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=62, var_1_3=63, var_1_4=0, var_1_5=63, var_1_6=62, var_1_7=1000000, var_1_8=-2147483648, var_1_9=-2147483647] [L85] CALL assume_abort_if_not(var_1_14 != 0) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=21, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=62, var_1_3=63, var_1_4=0, var_1_5=63, var_1_6=62, var_1_7=1000000, var_1_8=-2147483648, var_1_9=-2147483647] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(var_1_14 != 0) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=21, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=62, var_1_3=63, var_1_4=0, var_1_5=63, var_1_6=62, var_1_7=1000000, var_1_8=-2147483648, var_1_9=-2147483647] [L86] var_1_15 = __VERIFIER_nondet_uchar() [L87] CALL assume_abort_if_not(var_1_15 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=21, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=62, var_1_3=63, var_1_4=0, var_1_5=63, var_1_6=62, var_1_7=1000000, var_1_8=-2147483648, var_1_9=-2147483647] [L20] COND FALSE !(!cond) [L87] RET assume_abort_if_not(var_1_15 >= 0) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=21, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=62, var_1_3=63, var_1_4=0, var_1_5=63, var_1_6=62, var_1_7=1000000, var_1_8=-2147483648, var_1_9=-2147483647] [L88] CALL assume_abort_if_not(var_1_15 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=21, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=62, var_1_3=63, var_1_4=0, var_1_5=63, var_1_6=62, var_1_7=1000000, var_1_8=-2147483648, var_1_9=-2147483647] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(var_1_15 <= 0) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=21, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=62, var_1_3=63, var_1_4=0, var_1_5=63, var_1_6=62, var_1_7=1000000, var_1_8=-2147483648, var_1_9=-2147483647] [L89] var_1_16 = __VERIFIER_nondet_uchar() [L90] CALL assume_abort_if_not(var_1_16 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=21, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=62, var_1_3=63, var_1_4=0, var_1_5=63, var_1_6=62, var_1_7=1000000, var_1_8=-2147483648, var_1_9=-2147483647] [L20] COND FALSE !(!cond) [L90] RET assume_abort_if_not(var_1_16 >= 0) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=21, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=62, var_1_3=63, var_1_4=0, var_1_5=63, var_1_6=62, var_1_7=1000000, var_1_8=-2147483648, var_1_9=-2147483647] [L91] CALL assume_abort_if_not(var_1_16 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=21, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=62, var_1_3=63, var_1_4=0, var_1_5=63, var_1_6=62, var_1_7=1000000, var_1_8=-2147483648, var_1_9=-2147483647] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not(var_1_16 <= 0) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=21, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=32, var_1_2=62, var_1_3=63, var_1_4=0, var_1_5=63, var_1_6=62, var_1_7=1000000, var_1_8=-2147483648, var_1_9=-2147483647] [L104] RET updateVariables() [L105] CALL step() [L41] var_1_1 = ((var_1_2 + var_1_3) - ((((var_1_4) > ((var_1_5 + var_1_6))) ? (var_1_4) : ((var_1_5 + var_1_6))))) [L42] EXPR var_1_6 & var_1_3 [L42] signed long int stepLocal_0 = (~ var_1_5) * (var_1_6 & var_1_3); [L43] COND TRUE stepLocal_0 >= var_1_4 [L44] var_1_7 = var_1_8 [L48] var_1_10 = ((((var_1_2) < 0 ) ? -(var_1_2) : (var_1_2))) [L49] signed long int stepLocal_1 = var_1_6 / var_1_14; [L50] COND FALSE !(stepLocal_1 < -100) [L53] var_1_13 = (var_1_15 && var_1_16) [L55] var_1_17 = var_1_8 [L56] COND TRUE ! var_1_13 [L57] var_1_11 = (var_1_5 + (((((var_1_6) > (1)) ? (var_1_6) : (1))) + 64)) [L105] RET step() [L106] CALL, EXPR property() [L96] EXPR (var_1_1 == ((signed char) ((var_1_2 + var_1_3) - ((((var_1_4) > ((var_1_5 + var_1_6))) ? (var_1_4) : ((var_1_5 + var_1_6))))))) && ((((~ var_1_5) * (var_1_6 & var_1_3)) >= var_1_4) ? (var_1_7 == ((signed long int) var_1_8)) : (var_1_7 == ((signed long int) var_1_9))) [L96] EXPR var_1_6 & var_1_3 [L96] EXPR (var_1_1 == ((signed char) ((var_1_2 + var_1_3) - ((((var_1_4) > ((var_1_5 + var_1_6))) ? (var_1_4) : ((var_1_5 + var_1_6))))))) && ((((~ var_1_5) * (var_1_6 & var_1_3)) >= var_1_4) ? (var_1_7 == ((signed long int) var_1_8)) : (var_1_7 == ((signed long int) var_1_9))) [L96-L97] return (((((var_1_1 == ((signed char) ((var_1_2 + var_1_3) - ((((var_1_4) > ((var_1_5 + var_1_6))) ? (var_1_4) : ((var_1_5 + var_1_6))))))) && ((((~ var_1_5) * (var_1_6 & var_1_3)) >= var_1_4) ? (var_1_7 == ((signed long int) var_1_8)) : (var_1_7 == ((signed long int) var_1_9)))) && (var_1_10 == ((signed short int) ((((var_1_2) < 0 ) ? -(var_1_2) : (var_1_2)))))) && ((! var_1_13) ? (var_1_11 == ((unsigned short int) (var_1_5 + (((((var_1_6) > (1)) ? (var_1_6) : (1))) + 64)))) : 1)) && (((var_1_6 / var_1_14) < -100) ? (var_1_13 == ((unsigned char) (! (! (! var_1_15))))) : (var_1_13 == ((unsigned char) (var_1_15 && var_1_16))))) && (var_1_17 == ((signed long int) var_1_8)) ; [L106] RET, EXPR property() [L106] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=62, var_1_11=189, var_1_13=0, var_1_14=21, var_1_15=0, var_1_16=0, var_1_17=-2147483648, var_1_1=0, var_1_2=62, var_1_3=63, var_1_4=0, var_1_5=63, var_1_6=62, var_1_7=-2147483648, var_1_8=-2147483648, var_1_9=-2147483647] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=62, var_1_11=189, var_1_13=0, var_1_14=21, var_1_15=0, var_1_16=0, var_1_17=-2147483648, var_1_1=0, var_1_2=62, var_1_3=63, var_1_4=0, var_1_5=63, var_1_6=62, var_1_7=-2147483648, var_1_8=-2147483648, var_1_9=-2147483647] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 1, TraceHistogramMax: 21, 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=40occurred 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, 0.5s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 77 NumberOfCodeBlocks, 77 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 [2023-11-12 00:10:47,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bef9fb3-be28-4e07-9db1-28ed1d45d760/bin/utaipan-verify-NcY6lQBIFX/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_0bef9fb3-be28-4e07-9db1-28ed1d45d760/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bef9fb3-be28-4e07-9db1-28ed1d45d760/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bef9fb3-be28-4e07-9db1-28ed1d45d760/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bef9fb3-be28-4e07-9db1-28ed1d45d760/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-92.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bef9fb3-be28-4e07-9db1-28ed1d45d760/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bef9fb3-be28-4e07-9db1-28ed1d45d760/bin/utaipan-verify-NcY6lQBIFX --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 343bf8c1f5b63cb570b33f072686383ced273d5beece8568668536fb7145f86c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:10:50,637 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:10:50,804 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bef9fb3-be28-4e07-9db1-28ed1d45d760/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-12 00:10:50,817 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:10:50,818 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:10:50,868 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:10:50,869 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:10:50,870 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:10:50,871 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:10:50,877 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:10:50,877 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:10:50,878 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:10:50,879 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:10:50,880 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:10:50,881 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:10:50,881 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:10:50,883 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:10:50,883 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:10:50,884 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:10:50,884 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:10:50,885 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:10:50,886 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:10:50,886 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:10:50,886 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:10:50,887 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:10:50,887 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 00:10:50,888 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 00:10:50,888 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:10:50,889 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:10:50,889 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:10:50,891 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:10:50,891 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 00:10:50,891 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:10:50,892 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:10:50,892 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:10:50,893 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:10:50,893 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:10:50,893 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-12 00:10:50,893 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 00:10:50,895 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:10:50,895 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:10:50,895 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:10:50,896 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_0bef9fb3-be28-4e07-9db1-28ed1d45d760/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bef9fb3-be28-4e07-9db1-28ed1d45d760/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 343bf8c1f5b63cb570b33f072686383ced273d5beece8568668536fb7145f86c [2023-11-12 00:10:51,322 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:10:51,355 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:10:51,358 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:10:51,360 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:10:51,361 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:10:51,362 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bef9fb3-be28-4e07-9db1-28ed1d45d760/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-92.i [2023-11-12 00:10:54,631 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:10:54,920 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:10:54,921 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bef9fb3-be28-4e07-9db1-28ed1d45d760/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-92.i [2023-11-12 00:10:54,938 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bef9fb3-be28-4e07-9db1-28ed1d45d760/bin/utaipan-verify-NcY6lQBIFX/data/255340b98/ba5444c8461849adbb4240c7798b2900/FLAGb790bd239 [2023-11-12 00:10:54,956 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bef9fb3-be28-4e07-9db1-28ed1d45d760/bin/utaipan-verify-NcY6lQBIFX/data/255340b98/ba5444c8461849adbb4240c7798b2900 [2023-11-12 00:10:54,960 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:10:54,961 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:10:54,963 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:10:54,963 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:10:54,969 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:10:54,970 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:10:54" (1/1) ... [2023-11-12 00:10:54,972 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bba312a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:54, skipping insertion in model container [2023-11-12 00:10:54,972 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:10:54" (1/1) ... [2023-11-12 00:10:55,005 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:10:55,195 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_0bef9fb3-be28-4e07-9db1-28ed1d45d760/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-92.i[916,929] [2023-11-12 00:10:55,297 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:10:55,336 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:10:55,364 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_0bef9fb3-be28-4e07-9db1-28ed1d45d760/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-92.i[916,929] [2023-11-12 00:10:55,418 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:10:55,455 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:10:55,456 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:55 WrapperNode [2023-11-12 00:10:55,456 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:10:55,458 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:10:55,459 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:10:55,459 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:10:55,468 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:55" (1/1) ... [2023-11-12 00:10:55,497 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:55" (1/1) ... [2023-11-12 00:10:55,548 INFO L138 Inliner]: procedures = 27, calls = 34, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 114 [2023-11-12 00:10:55,550 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:10:55,551 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:10:55,552 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:10:55,552 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:10:55,563 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:55" (1/1) ... [2023-11-12 00:10:55,563 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:55" (1/1) ... [2023-11-12 00:10:55,588 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:55" (1/1) ... [2023-11-12 00:10:55,589 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:55" (1/1) ... [2023-11-12 00:10:55,598 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:55" (1/1) ... [2023-11-12 00:10:55,615 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:55" (1/1) ... [2023-11-12 00:10:55,618 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:55" (1/1) ... [2023-11-12 00:10:55,626 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:55" (1/1) ... [2023-11-12 00:10:55,631 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:10:55,634 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:10:55,634 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:10:55,635 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:10:55,636 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:55" (1/1) ... [2023-11-12 00:10:55,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:10:55,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bef9fb3-be28-4e07-9db1-28ed1d45d760/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:10:55,677 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bef9fb3-be28-4e07-9db1-28ed1d45d760/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:10:55,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bef9fb3-be28-4e07-9db1-28ed1d45d760/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:10:55,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:10:55,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 00:10:55,736 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:10:55,736 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:10:55,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:10:55,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:10:55,881 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:10:55,884 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:10:56,257 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:10:56,264 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:10:56,265 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:10:56,267 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:10:56 BoogieIcfgContainer [2023-11-12 00:10:56,267 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:10:56,303 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:10:56,303 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:10:56,306 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:10:56,307 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:10:54" (1/3) ... [2023-11-12 00:10:56,307 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@763399d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:10:56, skipping insertion in model container [2023-11-12 00:10:56,308 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:55" (2/3) ... [2023-11-12 00:10:56,308 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@763399d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:10:56, skipping insertion in model container [2023-11-12 00:10:56,308 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:10:56" (3/3) ... [2023-11-12 00:10:56,310 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-92.i [2023-11-12 00:10:56,343 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:10:56,355 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:10:56,426 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:10:56,434 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;@9c935d7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:10:56,435 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:10:56,441 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 32 states have internal predecessors, (39), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-12 00:10:56,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-12 00:10:56,457 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:10:56,458 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 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, 1, 1, 1, 1, 1, 1] [2023-11-12 00:10:56,459 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:10:56,464 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:10:56,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1371732706, now seen corresponding path program 1 times [2023-11-12 00:10:56,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:10:56,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2102319813] [2023-11-12 00:10:56,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:10:56,482 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 [2023-11-12 00:10:56,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bef9fb3-be28-4e07-9db1-28ed1d45d760/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:10:56,488 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bef9fb3-be28-4e07-9db1-28ed1d45d760/bin/utaipan-verify-NcY6lQBIFX/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) [2023-11-12 00:10:56,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bef9fb3-be28-4e07-9db1-28ed1d45d760/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:10:56,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:10:56,784 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-12 00:10:56,798 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:10:56,876 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 436 proven. 0 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked. [2023-11-12 00:10:56,877 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:10:56,878 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:10:56,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2102319813] [2023-11-12 00:10:56,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2102319813] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:10:56,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:10:56,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:10:56,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465468287] [2023-11-12 00:10:56,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:10:56,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 00:10:56,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:10:56,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 00:10:56,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:10:56,938 INFO L87 Difference]: Start difference. First operand has 55 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 32 states have internal predecessors, (39), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-12 00:10:56,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:10:56,986 INFO L93 Difference]: Finished difference Result 103 states and 177 transitions. [2023-11-12 00:10:56,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 00:10:56,989 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 129 [2023-11-12 00:10:56,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:10:57,000 INFO L225 Difference]: With dead ends: 103 [2023-11-12 00:10:57,000 INFO L226 Difference]: Without dead ends: 51 [2023-11-12 00:10:57,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:10:57,010 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:10:57,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:10:57,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2023-11-12 00:10:57,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2023-11-12 00:10:57,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 28 states have (on average 1.1428571428571428) internal successors, (32), 28 states have internal predecessors, (32), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-12 00:10:57,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 74 transitions. [2023-11-12 00:10:57,085 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 74 transitions. Word has length 129 [2023-11-12 00:10:57,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:10:57,085 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 74 transitions. [2023-11-12 00:10:57,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-12 00:10:57,086 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 74 transitions. [2023-11-12 00:10:57,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-12 00:10:57,099 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:10:57,100 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 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, 1, 1, 1, 1, 1, 1] [2023-11-12 00:10:57,122 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bef9fb3-be28-4e07-9db1-28ed1d45d760/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:10:57,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bef9fb3-be28-4e07-9db1-28ed1d45d760/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:10:57,316 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:10:57,317 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:10:57,317 INFO L85 PathProgramCache]: Analyzing trace with hash -178758496, now seen corresponding path program 1 times [2023-11-12 00:10:57,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:10:57,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [983743190] [2023-11-12 00:10:57,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:10:57,318 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 [2023-11-12 00:10:57,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bef9fb3-be28-4e07-9db1-28ed1d45d760/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:10:57,320 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bef9fb3-be28-4e07-9db1-28ed1d45d760/bin/utaipan-verify-NcY6lQBIFX/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) [2023-11-12 00:10:57,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bef9fb3-be28-4e07-9db1-28ed1d45d760/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:10:57,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:10:57,560 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-12 00:10:57,569 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:10:58,598 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 560 proven. 45 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-12 00:10:58,598 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:11:00,190 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:11:00,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [983743190] [2023-11-12 00:11:00,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [983743190] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:11:00,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1182481003] [2023-11-12 00:11:00,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:11:00,192 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-12 00:11:00,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bef9fb3-be28-4e07-9db1-28ed1d45d760/bin/utaipan-verify-NcY6lQBIFX/cvc4 [2023-11-12 00:11:00,197 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bef9fb3-be28-4e07-9db1-28ed1d45d760/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-12 00:11:00,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bef9fb3-be28-4e07-9db1-28ed1d45d760/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-12 00:11:00,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:11:00,618 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-12 00:11:00,626 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:11:01,235 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 560 proven. 45 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-12 00:11:01,236 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:11:01,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1182481003] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:11:01,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1192891420] [2023-11-12 00:11:01,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:11:01,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:11:01,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bef9fb3-be28-4e07-9db1-28ed1d45d760/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:11:01,877 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bef9fb3-be28-4e07-9db1-28ed1d45d760/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:11:01,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bef9fb3-be28-4e07-9db1-28ed1d45d760/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-12 00:11:02,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:11:02,039 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-12 00:11:02,045 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:11:02,601 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 560 proven. 45 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-12 00:11:02,602 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:11:03,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1192891420] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:11:03,265 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 00:11:03,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 9 [2023-11-12 00:11:03,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677157600] [2023-11-12 00:11:03,267 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 00:11:03,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-12 00:11:03,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:11:03,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-12 00:11:03,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-11-12 00:11:03,271 INFO L87 Difference]: Start difference. First operand 51 states and 74 transitions. Second operand has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 9 states have internal predecessors, (39), 3 states have call successors, (21), 3 states have call predecessors, (21), 5 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2023-11-12 00:11:05,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:11:05,673 INFO L93 Difference]: Finished difference Result 111 states and 155 transitions. [2023-11-12 00:11:05,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-12 00:11:05,681 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 9 states have internal predecessors, (39), 3 states have call successors, (21), 3 states have call predecessors, (21), 5 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 129 [2023-11-12 00:11:05,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:11:05,684 INFO L225 Difference]: With dead ends: 111 [2023-11-12 00:11:05,684 INFO L226 Difference]: Without dead ends: 63 [2023-11-12 00:11:05,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 489 GetRequests, 473 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2023-11-12 00:11:05,687 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 39 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-12 00:11:05,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 165 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-12 00:11:05,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2023-11-12 00:11:05,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 59. [2023-11-12 00:11:05,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 34 states have (on average 1.088235294117647) internal successors, (37), 34 states have internal predecessors, (37), 21 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-12 00:11:05,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 79 transitions. [2023-11-12 00:11:05,705 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 79 transitions. Word has length 129 [2023-11-12 00:11:05,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:11:05,706 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 79 transitions. [2023-11-12 00:11:05,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 9 states have internal predecessors, (39), 3 states have call successors, (21), 3 states have call predecessors, (21), 5 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2023-11-12 00:11:05,707 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 79 transitions. [2023-11-12 00:11:05,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-12 00:11:05,709 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:11:05,709 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 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, 1, 1, 1, 1, 1, 1] [2023-11-12 00:11:05,718 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bef9fb3-be28-4e07-9db1-28ed1d45d760/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-12 00:11:05,928 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bef9fb3-be28-4e07-9db1-28ed1d45d760/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:11:06,122 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bef9fb3-be28-4e07-9db1-28ed1d45d760/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-11-12 00:11:06,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bef9fb3-be28-4e07-9db1-28ed1d45d760/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bef9fb3-be28-4e07-9db1-28ed1d45d760/bin/utaipan-verify-NcY6lQBIFX/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bef9fb3-be28-4e07-9db1-28ed1d45d760/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt [2023-11-12 00:11:06,319 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:11:06,319 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:11:06,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1596248866, now seen corresponding path program 1 times [2023-11-12 00:11:06,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:11:06,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [344879216] [2023-11-12 00:11:06,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:11:06,320 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 [2023-11-12 00:11:06,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bef9fb3-be28-4e07-9db1-28ed1d45d760/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:11:06,322 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bef9fb3-be28-4e07-9db1-28ed1d45d760/bin/utaipan-verify-NcY6lQBIFX/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) [2023-11-12 00:11:06,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bef9fb3-be28-4e07-9db1-28ed1d45d760/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-12 00:11:06,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:11:06,701 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 43 conjunts are in the unsatisfiable core [2023-11-12 00:11:06,709 INFO L285 TraceCheckSpWp]: Computing forward predicates...