./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-10.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_384e06b4-773f-4eec-9873-d21b3287308f/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_384e06b4-773f-4eec-9873-d21b3287308f/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_384e06b4-773f-4eec-9873-d21b3287308f/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_384e06b4-773f-4eec-9873-d21b3287308f/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-10.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_384e06b4-773f-4eec-9873-d21b3287308f/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_384e06b4-773f-4eec-9873-d21b3287308f/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7129afa67a628c8316ab9be317c869a9a3ba073bbe9f050ef49fac8f66f147d5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:09:07,224 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:09:07,405 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_384e06b4-773f-4eec-9873-d21b3287308f/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:09:07,415 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:09:07,416 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:09:07,467 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:09:07,468 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:09:07,469 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:09:07,470 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:09:07,476 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:09:07,477 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:09:07,478 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:09:07,478 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:09:07,480 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:09:07,481 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:09:07,481 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:09:07,482 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:09:07,482 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:09:07,483 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:09:07,485 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:09:07,486 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:09:07,486 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:09:07,488 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:09:07,488 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:09:07,489 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:09:07,489 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:09:07,490 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:09:07,490 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:09:07,491 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:09:07,491 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:09:07,493 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:09:07,493 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:09:07,494 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:09:07,494 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:09:07,494 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:09:07,494 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:09:07,495 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:09:07,495 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:09:07,495 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:09:07,495 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:09:07,496 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:09:07,496 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:09:07,496 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:09:07,497 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:09:07,497 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:09:07,498 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:09:07,498 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:09:07,498 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_384e06b4-773f-4eec-9873-d21b3287308f/bin/utaipan-verify-mE87zJ7Ire/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_384e06b4-773f-4eec-9873-d21b3287308f/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7129afa67a628c8316ab9be317c869a9a3ba073bbe9f050ef49fac8f66f147d5 [2023-11-23 21:09:07,922 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:09:07,968 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:09:07,972 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:09:07,975 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:09:07,976 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:09:07,977 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_384e06b4-773f-4eec-9873-d21b3287308f/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-10.i [2023-11-23 21:09:11,593 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:09:11,835 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:09:11,836 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_384e06b4-773f-4eec-9873-d21b3287308f/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-10.i [2023-11-23 21:09:11,847 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_384e06b4-773f-4eec-9873-d21b3287308f/bin/utaipan-verify-mE87zJ7Ire/data/13a2d6b29/79bad5e48a0b4bf9b188554fbfe6f13f/FLAGe5fcb6df8 [2023-11-23 21:09:11,867 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_384e06b4-773f-4eec-9873-d21b3287308f/bin/utaipan-verify-mE87zJ7Ire/data/13a2d6b29/79bad5e48a0b4bf9b188554fbfe6f13f [2023-11-23 21:09:11,873 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:09:11,875 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:09:11,878 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:09:11,878 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:09:11,883 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:09:11,884 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:09:11" (1/1) ... [2023-11-23 21:09:11,885 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@561381d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:11, skipping insertion in model container [2023-11-23 21:09:11,886 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:09:11" (1/1) ... [2023-11-23 21:09:11,930 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:09:12,124 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_384e06b4-773f-4eec-9873-d21b3287308f/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-10.i[916,929] [2023-11-23 21:09:12,174 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:09:12,186 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:09:12,198 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_384e06b4-773f-4eec-9873-d21b3287308f/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-10.i[916,929] [2023-11-23 21:09:12,222 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:09:12,239 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:09:12,239 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:12 WrapperNode [2023-11-23 21:09:12,240 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:09:12,241 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:09:12,241 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:09:12,241 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:09:12,249 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:12" (1/1) ... [2023-11-23 21:09:12,259 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:12" (1/1) ... [2023-11-23 21:09:12,301 INFO L138 Inliner]: procedures = 26, calls = 35, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 133 [2023-11-23 21:09:12,301 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:09:12,302 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:09:12,303 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:09:12,303 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:09:12,317 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:12" (1/1) ... [2023-11-23 21:09:12,317 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:12" (1/1) ... [2023-11-23 21:09:12,320 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:12" (1/1) ... [2023-11-23 21:09:12,320 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:12" (1/1) ... [2023-11-23 21:09:12,328 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:12" (1/1) ... [2023-11-23 21:09:12,331 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:12" (1/1) ... [2023-11-23 21:09:12,334 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:12" (1/1) ... [2023-11-23 21:09:12,336 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:12" (1/1) ... [2023-11-23 21:09:12,339 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:09:12,340 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:09:12,340 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:09:12,341 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:09:12,341 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:12" (1/1) ... [2023-11-23 21:09:12,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:09:12,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_384e06b4-773f-4eec-9873-d21b3287308f/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:09:12,407 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_384e06b4-773f-4eec-9873-d21b3287308f/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:09:12,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_384e06b4-773f-4eec-9873-d21b3287308f/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:09:12,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:09:12,437 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:09:12,437 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:09:12,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:09:12,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:09:12,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:09:12,518 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:09:12,520 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:09:12,789 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:09:12,976 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:09:12,976 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:09:12,978 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:09:12 BoogieIcfgContainer [2023-11-23 21:09:12,978 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:09:12,980 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:09:12,981 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:09:12,997 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:09:12,998 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:09:11" (1/3) ... [2023-11-23 21:09:12,998 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e9cc0b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:09:12, skipping insertion in model container [2023-11-23 21:09:12,999 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:12" (2/3) ... [2023-11-23 21:09:12,999 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e9cc0b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:09:12, skipping insertion in model container [2023-11-23 21:09:12,999 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:09:12" (3/3) ... [2023-11-23 21:09:13,001 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-10.i [2023-11-23 21:09:13,027 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:09:13,027 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:09:13,073 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:09:13,081 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;@328c82cd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:09:13,081 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:09:13,090 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 18 states have internal predecessors, (20), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-23 21:09:13,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-23 21:09:13,104 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:09:13,105 INFO L195 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:09:13,105 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:09:13,110 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:09:13,110 INFO L85 PathProgramCache]: Analyzing trace with hash -167717452, now seen corresponding path program 1 times [2023-11-23 21:09:13,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:09:13,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711020903] [2023-11-23 21:09:13,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:13,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:09:13,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:09:13,649 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:09:13,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:09:13,838 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 21:09:13,840 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:09:13,841 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:09:13,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:09:13,848 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-23 21:09:13,852 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:09:13,928 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:09:13 BoogieIcfgContainer [2023-11-23 21:09:13,928 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:09:13,929 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:09:13,929 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:09:13,929 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:09:13,930 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:09:12" (3/4) ... [2023-11-23 21:09:13,932 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 21:09:13,933 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:09:13,934 INFO L158 Benchmark]: Toolchain (without parser) took 2059.44ms. Allocated memory is still 155.2MB. Free memory was 119.4MB in the beginning and 87.0MB in the end (delta: 32.4MB). Peak memory consumption was 34.8MB. Max. memory is 16.1GB. [2023-11-23 21:09:13,935 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 111.1MB. Free memory is still 84.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:09:13,936 INFO L158 Benchmark]: CACSL2BoogieTranslator took 362.46ms. Allocated memory is still 155.2MB. Free memory was 119.4MB in the beginning and 107.0MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-23 21:09:13,936 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.72ms. Allocated memory is still 155.2MB. Free memory was 107.0MB in the beginning and 104.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:09:13,937 INFO L158 Benchmark]: Boogie Preprocessor took 37.02ms. Allocated memory is still 155.2MB. Free memory was 104.7MB in the beginning and 103.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:09:13,938 INFO L158 Benchmark]: RCFGBuilder took 637.95ms. Allocated memory is still 155.2MB. Free memory was 103.3MB in the beginning and 78.4MB in the end (delta: 24.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-23 21:09:13,939 INFO L158 Benchmark]: TraceAbstraction took 947.71ms. Allocated memory is still 155.2MB. Free memory was 77.5MB in the beginning and 87.0MB in the end (delta: -9.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:09:13,939 INFO L158 Benchmark]: Witness Printer took 4.45ms. Allocated memory is still 155.2MB. Free memory is still 87.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:09:13,942 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 111.1MB. Free memory is still 84.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 362.46ms. Allocated memory is still 155.2MB. Free memory was 119.4MB in the beginning and 107.0MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.72ms. Allocated memory is still 155.2MB. Free memory was 107.0MB in the beginning and 104.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.02ms. Allocated memory is still 155.2MB. Free memory was 104.7MB in the beginning and 103.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 637.95ms. Allocated memory is still 155.2MB. Free memory was 103.3MB in the beginning and 78.4MB in the end (delta: 24.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 947.71ms. Allocated memory is still 155.2MB. Free memory was 77.5MB in the beginning and 87.0MB in the end (delta: -9.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.45ms. Allocated memory is still 155.2MB. Free memory is still 87.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of to_int at line 61. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned long int var_1_1 = 5; [L23] unsigned long int var_1_2 = 8; [L24] signed long int var_1_3 = 9; [L25] signed long int var_1_6 = 1000000; [L26] signed long int var_1_7 = 49; [L27] signed long int var_1_8 = 0; [L28] signed char var_1_9 = -10; [L29] unsigned short int var_1_10 = 58996; [L30] unsigned short int var_1_11 = 32; [L31] signed char var_1_12 = 32; [L32] signed char var_1_13 = 16; [L33] signed char var_1_14 = 2; [L34] signed long int var_1_15 = 32; [L35] signed long int var_1_17 = 1000000000; [L36] signed long int var_1_18 = 0; [L37] signed char var_1_19 = 2; [L38] unsigned char var_1_20 = 0; [L39] unsigned char var_1_21 = 0; [L40] signed long int last_1_var_1_3 = 9; [L113] isInitial = 1 [L114] FCALL initially() [L115] COND TRUE 1 [L116] CALL updateLastVariables() [L106] last_1_var_1_3 = var_1_3 [L116] RET updateLastVariables() [L117] CALL updateVariables() [L71] var_1_2 = __VERIFIER_nondet_ulong() [L72] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_3=9, var_1_10=58996, var_1_11=32, var_1_12=32, var_1_13=16, var_1_14=2, var_1_15=32, var_1_17=1000000000, var_1_18=0, var_1_19=2, var_1_1=5, var_1_20=0, var_1_21=0, var_1_3=9, var_1_6=1000000, var_1_7=49, var_1_8=0, var_1_9=-10] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, last_1_var_1_3=9, var_1_10=58996, var_1_11=32, var_1_12=32, var_1_13=16, var_1_14=2, var_1_15=32, var_1_17=1000000000, var_1_18=0, var_1_19=2, var_1_1=5, var_1_20=0, var_1_21=0, var_1_3=9, var_1_6=1000000, var_1_7=49, var_1_8=0, var_1_9=-10] [L73] CALL assume_abort_if_not(var_1_2 <= 4294967294) VAL [\old(cond)=1, isInitial=1, last_1_var_1_3=9, var_1_10=58996, var_1_11=32, var_1_12=32, var_1_13=16, var_1_14=2, var_1_15=32, var_1_17=1000000000, var_1_18=0, var_1_19=2, var_1_1=5, var_1_20=0, var_1_21=0, var_1_2=2, var_1_3=9, var_1_6=1000000, var_1_7=49, var_1_8=0, var_1_9=-10] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(var_1_2 <= 4294967294) VAL [isInitial=1, last_1_var_1_3=9, var_1_10=58996, var_1_11=32, var_1_12=32, var_1_13=16, var_1_14=2, var_1_15=32, var_1_17=1000000000, var_1_18=0, var_1_19=2, var_1_1=5, var_1_20=0, var_1_21=0, var_1_2=2, var_1_3=9, var_1_6=1000000, var_1_7=49, var_1_8=0, var_1_9=-10] [L74] var_1_6 = __VERIFIER_nondet_long() [L75] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_3=9, var_1_10=58996, var_1_11=32, var_1_12=32, var_1_13=16, var_1_14=2, var_1_15=32, var_1_17=1000000000, var_1_18=0, var_1_19=2, var_1_1=5, var_1_20=0, var_1_21=0, var_1_2=2, var_1_3=9, var_1_6=0, var_1_7=49, var_1_8=0, var_1_9=-10] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, last_1_var_1_3=9, var_1_10=58996, var_1_11=32, var_1_12=32, var_1_13=16, var_1_14=2, var_1_15=32, var_1_17=1000000000, var_1_18=0, var_1_19=2, var_1_1=5, var_1_20=0, var_1_21=0, var_1_2=2, var_1_3=9, var_1_6=0, var_1_7=49, var_1_8=0, var_1_9=-10] [L76] CALL assume_abort_if_not(var_1_6 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_3=9, var_1_10=58996, var_1_11=32, var_1_12=32, var_1_13=16, var_1_14=2, var_1_15=32, var_1_17=1000000000, var_1_18=0, var_1_19=2, var_1_1=5, var_1_20=0, var_1_21=0, var_1_2=2, var_1_3=9, var_1_6=0, var_1_7=49, var_1_8=0, var_1_9=-10] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not(var_1_6 <= 2147483647) VAL [isInitial=1, last_1_var_1_3=9, var_1_10=58996, var_1_11=32, var_1_12=32, var_1_13=16, var_1_14=2, var_1_15=32, var_1_17=1000000000, var_1_18=0, var_1_19=2, var_1_1=5, var_1_20=0, var_1_21=0, var_1_2=2, var_1_3=9, var_1_6=0, var_1_7=49, var_1_8=0, var_1_9=-10] [L77] var_1_7 = __VERIFIER_nondet_long() [L78] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_3=9, var_1_10=58996, var_1_11=32, var_1_12=32, var_1_13=16, var_1_14=2, var_1_15=32, var_1_17=1000000000, var_1_18=0, var_1_19=2, var_1_1=5, var_1_20=0, var_1_21=0, var_1_2=2, var_1_3=9, var_1_6=0, var_1_7=9, var_1_8=0, var_1_9=-10] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, last_1_var_1_3=9, var_1_10=58996, var_1_11=32, var_1_12=32, var_1_13=16, var_1_14=2, var_1_15=32, var_1_17=1000000000, var_1_18=0, var_1_19=2, var_1_1=5, var_1_20=0, var_1_21=0, var_1_2=2, var_1_3=9, var_1_6=0, var_1_7=9, var_1_8=0, var_1_9=-10] [L79] CALL assume_abort_if_not(var_1_7 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_3=9, var_1_10=58996, var_1_11=32, var_1_12=32, var_1_13=16, var_1_14=2, var_1_15=32, var_1_17=1000000000, var_1_18=0, var_1_19=2, var_1_1=5, var_1_20=0, var_1_21=0, var_1_2=2, var_1_3=9, var_1_6=0, var_1_7=9, var_1_8=0, var_1_9=-10] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not(var_1_7 <= 2147483647) VAL [isInitial=1, last_1_var_1_3=9, var_1_10=58996, var_1_11=32, var_1_12=32, var_1_13=16, var_1_14=2, var_1_15=32, var_1_17=1000000000, var_1_18=0, var_1_19=2, var_1_1=5, var_1_20=0, var_1_21=0, var_1_2=2, var_1_3=9, var_1_6=0, var_1_7=9, var_1_8=0, var_1_9=-10] [L80] var_1_8 = __VERIFIER_nondet_long() [L81] CALL assume_abort_if_not(var_1_8 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_3=9, var_1_10=58996, var_1_11=32, var_1_12=32, var_1_13=16, var_1_14=2, var_1_15=32, var_1_17=1000000000, var_1_18=0, var_1_19=2, var_1_1=5, var_1_20=0, var_1_21=0, var_1_2=2, var_1_3=9, var_1_6=0, var_1_7=9, var_1_8=0, var_1_9=-10] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(var_1_8 >= -2147483648) VAL [isInitial=1, last_1_var_1_3=9, var_1_10=58996, var_1_11=32, var_1_12=32, var_1_13=16, var_1_14=2, var_1_15=32, var_1_17=1000000000, var_1_18=0, var_1_19=2, var_1_1=5, var_1_20=0, var_1_21=0, var_1_2=2, var_1_3=9, var_1_6=0, var_1_7=9, var_1_8=0, var_1_9=-10] [L82] CALL assume_abort_if_not(var_1_8 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_3=9, var_1_10=58996, var_1_11=32, var_1_12=32, var_1_13=16, var_1_14=2, var_1_15=32, var_1_17=1000000000, var_1_18=0, var_1_19=2, var_1_1=5, var_1_20=0, var_1_21=0, var_1_2=2, var_1_3=9, var_1_6=0, var_1_7=9, var_1_8=0, var_1_9=-10] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not(var_1_8 <= 2147483647) VAL [isInitial=1, last_1_var_1_3=9, var_1_10=58996, var_1_11=32, var_1_12=32, var_1_13=16, var_1_14=2, var_1_15=32, var_1_17=1000000000, var_1_18=0, var_1_19=2, var_1_1=5, var_1_20=0, var_1_21=0, var_1_2=2, var_1_3=9, var_1_6=0, var_1_7=9, var_1_8=0, var_1_9=-10] [L83] var_1_10 = __VERIFIER_nondet_ushort() [L84] CALL assume_abort_if_not(var_1_10 >= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_3=9, var_1_10=32767, var_1_11=32, var_1_12=32, var_1_13=16, var_1_14=2, var_1_15=32, var_1_17=1000000000, var_1_18=0, var_1_19=2, var_1_1=5, var_1_20=0, var_1_21=0, var_1_2=2, var_1_3=9, var_1_6=0, var_1_7=9, var_1_8=0, var_1_9=-10] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(var_1_10 >= 32767) VAL [isInitial=1, last_1_var_1_3=9, var_1_10=32767, var_1_11=32, var_1_12=32, var_1_13=16, var_1_14=2, var_1_15=32, var_1_17=1000000000, var_1_18=0, var_1_19=2, var_1_1=5, var_1_20=0, var_1_21=0, var_1_2=2, var_1_3=9, var_1_6=0, var_1_7=9, var_1_8=0, var_1_9=-10] [L85] CALL assume_abort_if_not(var_1_10 <= 65535) VAL [\old(cond)=1, isInitial=1, last_1_var_1_3=9, var_1_10=32767, var_1_11=32, var_1_12=32, var_1_13=16, var_1_14=2, var_1_15=32, var_1_17=1000000000, var_1_18=0, var_1_19=2, var_1_1=5, var_1_20=0, var_1_21=0, var_1_2=2, var_1_3=9, var_1_6=0, var_1_7=9, var_1_8=0, var_1_9=-10] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(var_1_10 <= 65535) VAL [isInitial=1, last_1_var_1_3=9, var_1_10=32767, var_1_11=32, var_1_12=32, var_1_13=16, var_1_14=2, var_1_15=32, var_1_17=1000000000, var_1_18=0, var_1_19=2, var_1_1=5, var_1_20=0, var_1_21=0, var_1_2=2, var_1_3=9, var_1_6=0, var_1_7=9, var_1_8=0, var_1_9=-10] [L86] var_1_11 = __VERIFIER_nondet_ushort() [L87] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_3=9, var_1_10=32767, var_1_12=32, var_1_13=16, var_1_14=2, var_1_15=32, var_1_17=1000000000, var_1_18=0, var_1_19=2, var_1_1=5, var_1_20=0, var_1_21=0, var_1_2=2, var_1_3=9, var_1_6=0, var_1_7=9, var_1_8=0, var_1_9=-10] [L20] COND FALSE !(!cond) [L87] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, last_1_var_1_3=9, var_1_10=32767, var_1_12=32, var_1_13=16, var_1_14=2, var_1_15=32, var_1_17=1000000000, var_1_18=0, var_1_19=2, var_1_1=5, var_1_20=0, var_1_21=0, var_1_2=2, var_1_3=9, var_1_6=0, var_1_7=9, var_1_8=0, var_1_9=-10] [L88] CALL assume_abort_if_not(var_1_11 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_3=9, var_1_10=32767, var_1_11=32767, var_1_12=32, var_1_13=16, var_1_14=2, var_1_15=32, var_1_17=1000000000, var_1_18=0, var_1_19=2, var_1_1=5, var_1_20=0, var_1_21=0, var_1_2=2, var_1_3=9, var_1_6=0, var_1_7=9, var_1_8=0, var_1_9=-10] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(var_1_11 <= 32767) VAL [isInitial=1, last_1_var_1_3=9, var_1_10=32767, var_1_11=32767, var_1_12=32, var_1_13=16, var_1_14=2, var_1_15=32, var_1_17=1000000000, var_1_18=0, var_1_19=2, var_1_1=5, var_1_20=0, var_1_21=0, var_1_2=2, var_1_3=9, var_1_6=0, var_1_7=9, var_1_8=0, var_1_9=-10] [L89] var_1_12 = __VERIFIER_nondet_char() [L90] CALL assume_abort_if_not(var_1_12 >= -1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_3=9, var_1_10=32767, var_1_11=32767, var_1_12=1, var_1_13=16, var_1_14=2, var_1_15=32, var_1_17=1000000000, var_1_18=0, var_1_19=2, var_1_1=5, var_1_20=0, var_1_21=0, var_1_2=2, var_1_3=9, var_1_6=0, var_1_7=9, var_1_8=0, var_1_9=-10] [L20] COND FALSE !(!cond) [L90] RET assume_abort_if_not(var_1_12 >= -1) VAL [isInitial=1, last_1_var_1_3=9, var_1_10=32767, var_1_11=32767, var_1_12=1, var_1_13=16, var_1_14=2, var_1_15=32, var_1_17=1000000000, var_1_18=0, var_1_19=2, var_1_1=5, var_1_20=0, var_1_21=0, var_1_2=2, var_1_3=9, var_1_6=0, var_1_7=9, var_1_8=0, var_1_9=-10] [L91] CALL assume_abort_if_not(var_1_12 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_3=9, var_1_10=32767, var_1_11=32767, var_1_12=1, var_1_13=16, var_1_14=2, var_1_15=32, var_1_17=1000000000, var_1_18=0, var_1_19=2, var_1_1=5, var_1_20=0, var_1_21=0, var_1_2=2, var_1_3=9, var_1_6=0, var_1_7=9, var_1_8=0, var_1_9=-10] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not(var_1_12 <= 126) VAL [isInitial=1, last_1_var_1_3=9, var_1_10=32767, var_1_11=32767, var_1_12=1, var_1_13=16, var_1_14=2, var_1_15=32, var_1_17=1000000000, var_1_18=0, var_1_19=2, var_1_1=5, var_1_20=0, var_1_21=0, var_1_2=2, var_1_3=9, var_1_6=0, var_1_7=9, var_1_8=0, var_1_9=-10] [L92] var_1_13 = __VERIFIER_nondet_char() [L93] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_3=9, var_1_10=32767, var_1_11=32767, var_1_12=1, var_1_13=2, var_1_14=2, var_1_15=32, var_1_17=1000000000, var_1_18=0, var_1_19=2, var_1_1=5, var_1_20=0, var_1_21=0, var_1_2=2, var_1_3=9, var_1_6=0, var_1_7=9, var_1_8=0, var_1_9=-10] [L20] COND FALSE !(!cond) [L93] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, last_1_var_1_3=9, var_1_10=32767, var_1_11=32767, var_1_12=1, var_1_13=2, var_1_14=2, var_1_15=32, var_1_17=1000000000, var_1_18=0, var_1_19=2, var_1_1=5, var_1_20=0, var_1_21=0, var_1_2=2, var_1_3=9, var_1_6=0, var_1_7=9, var_1_8=0, var_1_9=-10] [L94] CALL assume_abort_if_not(var_1_13 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_3=9, var_1_10=32767, var_1_11=32767, var_1_12=1, var_1_13=2, var_1_14=2, var_1_15=32, var_1_17=1000000000, var_1_18=0, var_1_19=2, var_1_1=5, var_1_20=0, var_1_21=0, var_1_2=2, var_1_3=9, var_1_6=0, var_1_7=9, var_1_8=0, var_1_9=-10] [L20] COND FALSE !(!cond) [L94] RET assume_abort_if_not(var_1_13 <= 126) VAL [isInitial=1, last_1_var_1_3=9, var_1_10=32767, var_1_11=32767, var_1_12=1, var_1_13=2, var_1_14=2, var_1_15=32, var_1_17=1000000000, var_1_18=0, var_1_19=2, var_1_1=5, var_1_20=0, var_1_21=0, var_1_2=2, var_1_3=9, var_1_6=0, var_1_7=9, var_1_8=0, var_1_9=-10] [L95] var_1_14 = __VERIFIER_nondet_char() [L96] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_3=9, var_1_10=32767, var_1_11=32767, var_1_12=1, var_1_13=2, var_1_14=0, var_1_15=32, var_1_17=1000000000, var_1_18=0, var_1_19=2, var_1_1=5, var_1_20=0, var_1_21=0, var_1_2=2, var_1_3=9, var_1_6=0, var_1_7=9, var_1_8=0, var_1_9=-10] [L20] COND FALSE !(!cond) [L96] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, last_1_var_1_3=9, var_1_10=32767, var_1_11=32767, var_1_12=1, var_1_13=2, var_1_14=0, var_1_15=32, var_1_17=1000000000, var_1_18=0, var_1_19=2, var_1_1=5, var_1_20=0, var_1_21=0, var_1_2=2, var_1_3=9, var_1_6=0, var_1_7=9, var_1_8=0, var_1_9=-10] [L97] CALL assume_abort_if_not(var_1_14 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_3=9, var_1_10=32767, var_1_11=32767, var_1_12=1, var_1_13=2, var_1_14=0, var_1_15=32, var_1_17=1000000000, var_1_18=0, var_1_19=2, var_1_1=5, var_1_20=0, var_1_21=0, var_1_2=2, var_1_3=9, var_1_6=0, var_1_7=9, var_1_8=0, var_1_9=-10] [L20] COND FALSE !(!cond) [L97] RET assume_abort_if_not(var_1_14 <= 126) VAL [isInitial=1, last_1_var_1_3=9, var_1_10=32767, var_1_11=32767, var_1_12=1, var_1_13=2, var_1_14=0, var_1_15=32, var_1_17=1000000000, var_1_18=0, var_1_19=2, var_1_1=5, var_1_20=0, var_1_21=0, var_1_2=2, var_1_3=9, var_1_6=0, var_1_7=9, var_1_8=0, var_1_9=-10] [L98] var_1_17 = __VERIFIER_nondet_long() [L99] CALL assume_abort_if_not(var_1_17 >= 536870911) VAL [\old(cond)=1, isInitial=1, last_1_var_1_3=9, var_1_10=32767, var_1_11=32767, var_1_12=1, var_1_13=2, var_1_14=0, var_1_15=32, var_1_17=536870911, var_1_18=0, var_1_19=2, var_1_1=5, var_1_20=0, var_1_21=0, var_1_2=2, var_1_3=9, var_1_6=0, var_1_7=9, var_1_8=0, var_1_9=-10] [L20] COND FALSE !(!cond) [L99] RET assume_abort_if_not(var_1_17 >= 536870911) VAL [isInitial=1, last_1_var_1_3=9, var_1_10=32767, var_1_11=32767, var_1_12=1, var_1_13=2, var_1_14=0, var_1_15=32, var_1_17=536870911, var_1_18=0, var_1_19=2, var_1_1=5, var_1_20=0, var_1_21=0, var_1_2=2, var_1_3=9, var_1_6=0, var_1_7=9, var_1_8=0, var_1_9=-10] [L100] CALL assume_abort_if_not(var_1_17 <= 1073741823) VAL [\old(cond)=1, isInitial=1, last_1_var_1_3=9, var_1_10=32767, var_1_11=32767, var_1_12=1, var_1_13=2, var_1_14=0, var_1_15=32, var_1_17=536870911, var_1_18=0, var_1_19=2, var_1_1=5, var_1_20=0, var_1_21=0, var_1_2=2, var_1_3=9, var_1_6=0, var_1_7=9, var_1_8=0, var_1_9=-10] [L20] COND FALSE !(!cond) [L100] RET assume_abort_if_not(var_1_17 <= 1073741823) VAL [isInitial=1, last_1_var_1_3=9, var_1_10=32767, var_1_11=32767, var_1_12=1, var_1_13=2, var_1_14=0, var_1_15=32, var_1_17=536870911, var_1_18=0, var_1_19=2, var_1_1=5, var_1_20=0, var_1_21=0, var_1_2=2, var_1_3=9, var_1_6=0, var_1_7=9, var_1_8=0, var_1_9=-10] [L101] var_1_21 = __VERIFIER_nondet_uchar() [L102] CALL assume_abort_if_not(var_1_21 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_3=9, var_1_10=32767, var_1_11=32767, var_1_12=1, var_1_13=2, var_1_14=0, var_1_15=32, var_1_17=536870911, var_1_18=0, var_1_19=2, var_1_1=5, var_1_20=0, var_1_21=1, var_1_2=2, var_1_3=9, var_1_6=0, var_1_7=9, var_1_8=0, var_1_9=-10] [L20] COND FALSE !(!cond) [L102] RET assume_abort_if_not(var_1_21 >= 1) VAL [isInitial=1, last_1_var_1_3=9, var_1_10=32767, var_1_11=32767, var_1_12=1, var_1_13=2, var_1_14=0, var_1_15=32, var_1_17=536870911, var_1_18=0, var_1_19=2, var_1_1=5, var_1_20=0, var_1_21=1, var_1_2=2, var_1_3=9, var_1_6=0, var_1_7=9, var_1_8=0, var_1_9=-10] [L103] CALL assume_abort_if_not(var_1_21 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_3=9, var_1_10=32767, var_1_11=32767, var_1_12=1, var_1_13=2, var_1_14=0, var_1_15=32, var_1_17=536870911, var_1_18=0, var_1_19=2, var_1_1=5, var_1_20=0, var_1_21=1, var_1_2=2, var_1_3=9, var_1_6=0, var_1_7=9, var_1_8=0, var_1_9=-10] [L20] COND FALSE !(!cond) [L103] RET assume_abort_if_not(var_1_21 <= 1) VAL [isInitial=1, last_1_var_1_3=9, var_1_10=32767, var_1_11=32767, var_1_12=1, var_1_13=2, var_1_14=0, var_1_15=32, var_1_17=536870911, var_1_18=0, var_1_19=2, var_1_1=5, var_1_20=0, var_1_21=1, var_1_2=2, var_1_3=9, var_1_6=0, var_1_7=9, var_1_8=0, var_1_9=-10] [L117] RET updateVariables() [L118] CALL step() [L44] var_1_1 = var_1_2 [L45] var_1_18 = var_1_8 [L46] var_1_19 = var_1_12 [L47] var_1_20 = var_1_21 [L48] signed char stepLocal_1 = var_1_19; [L49] COND FALSE !((- (var_1_10 - var_1_11)) >= stepLocal_1) [L52] var_1_9 = ((((var_1_12) < (var_1_14)) ? (var_1_12) : (var_1_14))) [L54] COND TRUE \read(var_1_20) [L55] var_1_15 = (var_1_12 - var_1_14) [L59] signed long int stepLocal_0 = var_1_15; [L60] COND TRUE stepLocal_0 < var_1_1 [L61] var_1_3 = -0.5 [L118] RET step() [L119] CALL, EXPR property() [L109-L110] return ((((((var_1_1 == ((unsigned long int) var_1_2)) && ((var_1_15 < var_1_1) ? (var_1_3 == ((signed long int) -0.5)) : (((- last_1_var_1_3) == (var_1_6 - var_1_7)) ? (var_1_3 == ((signed long int) var_1_8)) : (var_1_3 == ((signed long int) var_1_8))))) && (((- (var_1_10 - var_1_11)) >= var_1_19) ? (var_1_9 == ((signed char) (var_1_12 - ((((var_1_13) > (var_1_14)) ? (var_1_13) : (var_1_14)))))) : (var_1_9 == ((signed char) ((((var_1_12) < (var_1_14)) ? (var_1_12) : (var_1_14))))))) && (var_1_20 ? (var_1_15 == ((signed long int) (var_1_12 - var_1_14))) : (var_1_15 == ((signed long int) (var_1_13 - ((var_1_17 - 4) + ((((var_1_11) < 0 ) ? -(var_1_11) : (var_1_11))))))))) && (var_1_18 == ((signed long int) var_1_8))) && (var_1_19 == ((signed char) var_1_12))) && (var_1_20 == ((unsigned char) var_1_21)) ; [L119] RET, EXPR property() [L119] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_3=9, var_1_10=32767, var_1_11=32767, var_1_12=1, var_1_13=2, var_1_14=0, var_1_15=1, var_1_17=536870911, var_1_18=0, var_1_19=1, var_1_1=2, var_1_20=1, var_1_21=1, var_1_2=2, var_1_3=0, var_1_6=0, var_1_7=9, var_1_8=0, var_1_9=0] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_3=9, var_1_10=32767, var_1_11=32767, var_1_12=1, var_1_13=2, var_1_14=0, var_1_15=1, var_1_17=536870911, var_1_18=0, var_1_19=1, var_1_1=2, var_1_20=1, var_1_21=1, var_1_2=2, var_1_3=0, var_1_6=0, var_1_7=9, var_1_8=0, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 22, 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=42occurred 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, 0.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 81 NumberOfCodeBlocks, 81 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-23 21:09:13,988 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_384e06b4-773f-4eec-9873-d21b3287308f/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_384e06b4-773f-4eec-9873-d21b3287308f/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_384e06b4-773f-4eec-9873-d21b3287308f/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_384e06b4-773f-4eec-9873-d21b3287308f/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_384e06b4-773f-4eec-9873-d21b3287308f/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-10.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_384e06b4-773f-4eec-9873-d21b3287308f/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_384e06b4-773f-4eec-9873-d21b3287308f/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7129afa67a628c8316ab9be317c869a9a3ba073bbe9f050ef49fac8f66f147d5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:09:16,651 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:09:16,762 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_384e06b4-773f-4eec-9873-d21b3287308f/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-23 21:09:16,770 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:09:16,770 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:09:16,801 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:09:16,802 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:09:16,803 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:09:16,804 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:09:16,804 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:09:16,805 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:09:16,806 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:09:16,806 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:09:16,807 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:09:16,808 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:09:16,808 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:09:16,809 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:09:16,810 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:09:16,811 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:09:16,811 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:09:16,812 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:09:16,812 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:09:16,813 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:09:16,813 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:09:16,814 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 21:09:16,814 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 21:09:16,815 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 21:09:16,815 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:09:16,816 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:09:16,816 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:09:16,817 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:09:16,817 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:09:16,818 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:09:16,818 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:09:16,818 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:09:16,819 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:09:16,819 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:09:16,819 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:09:16,820 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 21:09:16,820 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 21:09:16,820 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:09:16,821 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:09:16,821 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:09:16,821 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:09:16,821 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_384e06b4-773f-4eec-9873-d21b3287308f/bin/utaipan-verify-mE87zJ7Ire/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_384e06b4-773f-4eec-9873-d21b3287308f/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7129afa67a628c8316ab9be317c869a9a3ba073bbe9f050ef49fac8f66f147d5 [2023-11-23 21:09:17,251 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:09:17,279 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:09:17,282 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:09:17,283 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:09:17,286 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:09:17,288 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_384e06b4-773f-4eec-9873-d21b3287308f/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-10.i [2023-11-23 21:09:20,534 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:09:20,825 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:09:20,825 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_384e06b4-773f-4eec-9873-d21b3287308f/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-10.i [2023-11-23 21:09:20,838 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_384e06b4-773f-4eec-9873-d21b3287308f/bin/utaipan-verify-mE87zJ7Ire/data/5f11d091b/7e6d5caa6a2e430982ce8b8d5a54b171/FLAG4c48cf0c9 [2023-11-23 21:09:20,854 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_384e06b4-773f-4eec-9873-d21b3287308f/bin/utaipan-verify-mE87zJ7Ire/data/5f11d091b/7e6d5caa6a2e430982ce8b8d5a54b171 [2023-11-23 21:09:20,858 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:09:20,860 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:09:20,862 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:09:20,863 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:09:20,869 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:09:20,873 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:09:20" (1/1) ... [2023-11-23 21:09:20,875 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bfeca30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:20, skipping insertion in model container [2023-11-23 21:09:20,875 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:09:20" (1/1) ... [2023-11-23 21:09:20,917 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:09:21,069 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_384e06b4-773f-4eec-9873-d21b3287308f/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-10.i[916,929] [2023-11-23 21:09:21,126 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:09:21,150 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:09:21,171 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_384e06b4-773f-4eec-9873-d21b3287308f/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-10.i[916,929] [2023-11-23 21:09:21,219 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:09:21,241 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:09:21,242 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:21 WrapperNode [2023-11-23 21:09:21,242 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:09:21,243 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:09:21,244 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:09:21,244 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:09:21,258 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:21" (1/1) ... [2023-11-23 21:09:21,274 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:21" (1/1) ... [2023-11-23 21:09:21,311 INFO L138 Inliner]: procedures = 27, calls = 35, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 126 [2023-11-23 21:09:21,312 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:09:21,313 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:09:21,313 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:09:21,313 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:09:21,325 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:21" (1/1) ... [2023-11-23 21:09:21,325 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:21" (1/1) ... [2023-11-23 21:09:21,330 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:21" (1/1) ... [2023-11-23 21:09:21,331 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:21" (1/1) ... [2023-11-23 21:09:21,342 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:21" (1/1) ... [2023-11-23 21:09:21,346 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:21" (1/1) ... [2023-11-23 21:09:21,349 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:21" (1/1) ... [2023-11-23 21:09:21,351 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:21" (1/1) ... [2023-11-23 21:09:21,360 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:09:21,361 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:09:21,361 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:09:21,361 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:09:21,362 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:21" (1/1) ... [2023-11-23 21:09:21,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:09:21,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_384e06b4-773f-4eec-9873-d21b3287308f/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:09:21,418 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_384e06b4-773f-4eec-9873-d21b3287308f/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:09:21,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_384e06b4-773f-4eec-9873-d21b3287308f/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:09:21,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:09:21,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 21:09:21,475 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:09:21,475 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:09:21,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:09:21,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:09:21,613 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:09:21,616 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:09:21,939 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:09:22,014 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:09:22,014 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:09:22,015 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:09:22 BoogieIcfgContainer [2023-11-23 21:09:22,015 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:09:22,018 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:09:22,018 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:09:22,022 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:09:22,022 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:09:20" (1/3) ... [2023-11-23 21:09:22,023 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e5d6872 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:09:22, skipping insertion in model container [2023-11-23 21:09:22,023 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:21" (2/3) ... [2023-11-23 21:09:22,025 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e5d6872 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:09:22, skipping insertion in model container [2023-11-23 21:09:22,026 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:09:22" (3/3) ... [2023-11-23 21:09:22,028 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-10.i [2023-11-23 21:09:22,053 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:09:22,053 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:09:22,110 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:09:22,117 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;@1ab908c3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:09:22,117 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:09:22,122 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 26 states have (on average 1.3461538461538463) internal successors, (35), 27 states have internal predecessors, (35), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-23 21:09:22,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-11-23 21:09:22,146 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:09:22,147 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:09:22,148 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:09:22,156 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:09:22,156 INFO L85 PathProgramCache]: Analyzing trace with hash 2080088819, now seen corresponding path program 1 times [2023-11-23 21:09:22,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:09:22,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [746247972] [2023-11-23 21:09:22,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:22,176 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:09:22,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_384e06b4-773f-4eec-9873-d21b3287308f/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:09:22,179 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_384e06b4-773f-4eec-9873-d21b3287308f/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:09:22,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_384e06b4-773f-4eec-9873-d21b3287308f/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-23 21:09:22,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:09:22,446 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 21:09:22,458 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:09:22,529 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 194 proven. 0 refuted. 0 times theorem prover too weak. 730 trivial. 0 not checked. [2023-11-23 21:09:22,530 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:09:22,536 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:09:22,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [746247972] [2023-11-23 21:09:22,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [746247972] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:09:22,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:09:22,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:09:22,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121938261] [2023-11-23 21:09:22,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:09:22,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:09:22,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:09:22,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:09:22,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:09:22,602 INFO L87 Difference]: Start difference. First operand has 51 states, 26 states have (on average 1.3461538461538463) internal successors, (35), 27 states have internal predecessors, (35), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-11-23 21:09:22,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:09:22,685 INFO L93 Difference]: Finished difference Result 99 states and 178 transitions. [2023-11-23 21:09:22,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:09:22,690 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 130 [2023-11-23 21:09:22,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:09:22,698 INFO L225 Difference]: With dead ends: 99 [2023-11-23 21:09:22,698 INFO L226 Difference]: Without dead ends: 49 [2023-11-23 21:09:22,703 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:09:22,710 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:09:22,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 71 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:09:22,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2023-11-23 21:09:22,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2023-11-23 21:09:22,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 25 states have (on average 1.2) internal successors, (30), 25 states have internal predecessors, (30), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-23 21:09:22,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 74 transitions. [2023-11-23 21:09:22,795 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 74 transitions. Word has length 130 [2023-11-23 21:09:22,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:09:22,795 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 74 transitions. [2023-11-23 21:09:22,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-11-23 21:09:22,797 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 74 transitions. [2023-11-23 21:09:22,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-11-23 21:09:22,805 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:09:22,805 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:09:22,817 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_384e06b4-773f-4eec-9873-d21b3287308f/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:09:23,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_384e06b4-773f-4eec-9873-d21b3287308f/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:09:23,012 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:09:23,013 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:09:23,013 INFO L85 PathProgramCache]: Analyzing trace with hash -1678234573, now seen corresponding path program 1 times [2023-11-23 21:09:23,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:09:23,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [613934521] [2023-11-23 21:09:23,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:23,015 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:09:23,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_384e06b4-773f-4eec-9873-d21b3287308f/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:09:23,016 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_384e06b4-773f-4eec-9873-d21b3287308f/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:09:23,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_384e06b4-773f-4eec-9873-d21b3287308f/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-23 21:09:23,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:09:23,236 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 34 conjunts are in the unsatisfiable core [2023-11-23 21:09:23,251 INFO L285 TraceCheckSpWp]: Computing forward predicates...