./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-11.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_2a667fa4-17d1-4220-9c04-435198aef503/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a667fa4-17d1-4220-9c04-435198aef503/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_2a667fa4-17d1-4220-9c04-435198aef503/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a667fa4-17d1-4220-9c04-435198aef503/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-11.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a667fa4-17d1-4220-9c04-435198aef503/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_2a667fa4-17d1-4220-9c04-435198aef503/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 4cf4650f742700c06e6fa5ebc534ab82b3cf3ef4f696ea5e846e5553fd9ecb84 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:21:07,082 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:21:07,185 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a667fa4-17d1-4220-9c04-435198aef503/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:21:07,190 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:21:07,191 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:21:07,221 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:21:07,222 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:21:07,222 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:21:07,223 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:21:07,224 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:21:07,224 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:21:07,225 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:21:07,225 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:21:07,226 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:21:07,226 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:21:07,227 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:21:07,228 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:21:07,228 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:21:07,229 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:21:07,229 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:21:07,230 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:21:07,230 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:21:07,231 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:21:07,232 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:21:07,232 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:21:07,233 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:21:07,233 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:21:07,233 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:21:07,234 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:21:07,234 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:21:07,235 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:21:07,235 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:21:07,236 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:21:07,236 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:21:07,237 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:21:07,237 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:21:07,237 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:21:07,238 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:21:07,238 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:21:07,239 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:21:07,239 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:21:07,239 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:21:07,240 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:21:07,240 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:21:07,240 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:21:07,240 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:21:07,241 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:21:07,241 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_2a667fa4-17d1-4220-9c04-435198aef503/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a667fa4-17d1-4220-9c04-435198aef503/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4cf4650f742700c06e6fa5ebc534ab82b3cf3ef4f696ea5e846e5553fd9ecb84 [2023-11-23 21:21:07,479 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:21:07,500 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:21:07,503 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:21:07,504 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:21:07,505 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:21:07,506 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a667fa4-17d1-4220-9c04-435198aef503/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-11.i [2023-11-23 21:21:10,589 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:21:10,898 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:21:10,898 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a667fa4-17d1-4220-9c04-435198aef503/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-11.i [2023-11-23 21:21:10,908 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a667fa4-17d1-4220-9c04-435198aef503/bin/utaipan-verify-mE87zJ7Ire/data/c4ec963d5/aeb15bd2cc6b4c17a584951434c2a9b9/FLAG73c78f5c5 [2023-11-23 21:21:10,925 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a667fa4-17d1-4220-9c04-435198aef503/bin/utaipan-verify-mE87zJ7Ire/data/c4ec963d5/aeb15bd2cc6b4c17a584951434c2a9b9 [2023-11-23 21:21:10,928 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:21:10,929 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:21:10,931 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:21:10,931 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:21:10,937 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:21:10,938 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:21:10" (1/1) ... [2023-11-23 21:21:10,940 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77187f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:10, skipping insertion in model container [2023-11-23 21:21:10,940 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:21:10" (1/1) ... [2023-11-23 21:21:10,970 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:21:11,173 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_2a667fa4-17d1-4220-9c04-435198aef503/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-11.i[915,928] [2023-11-23 21:21:11,253 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:21:11,267 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:21:11,283 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_2a667fa4-17d1-4220-9c04-435198aef503/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-11.i[915,928] [2023-11-23 21:21:11,326 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:21:11,349 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:21:11,349 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:11 WrapperNode [2023-11-23 21:21:11,350 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:21:11,351 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:21:11,351 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:21:11,351 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:21:11,359 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:11" (1/1) ... [2023-11-23 21:21:11,379 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:11" (1/1) ... [2023-11-23 21:21:11,423 INFO L138 Inliner]: procedures = 26, calls = 32, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 120 [2023-11-23 21:21:11,423 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:21:11,424 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:21:11,424 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:21:11,424 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:21:11,446 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:11" (1/1) ... [2023-11-23 21:21:11,446 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:11" (1/1) ... [2023-11-23 21:21:11,449 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:11" (1/1) ... [2023-11-23 21:21:11,449 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:11" (1/1) ... [2023-11-23 21:21:11,456 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:11" (1/1) ... [2023-11-23 21:21:11,460 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:11" (1/1) ... [2023-11-23 21:21:11,462 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:11" (1/1) ... [2023-11-23 21:21:11,463 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:11" (1/1) ... [2023-11-23 21:21:11,467 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:21:11,468 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:21:11,468 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:21:11,468 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:21:11,469 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:11" (1/1) ... [2023-11-23 21:21:11,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:21:11,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a667fa4-17d1-4220-9c04-435198aef503/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:21:11,528 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a667fa4-17d1-4220-9c04-435198aef503/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:21:11,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a667fa4-17d1-4220-9c04-435198aef503/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:21:11,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:21:11,570 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:21:11,570 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:21:11,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:21:11,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:21:11,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:21:11,676 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:21:11,679 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:21:11,938 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:21:12,099 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:21:12,099 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:21:12,101 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:21:12 BoogieIcfgContainer [2023-11-23 21:21:12,101 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:21:12,105 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:21:12,105 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:21:12,114 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:21:12,114 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:21:10" (1/3) ... [2023-11-23 21:21:12,115 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f633703 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:21:12, skipping insertion in model container [2023-11-23 21:21:12,115 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:11" (2/3) ... [2023-11-23 21:21:12,115 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f633703 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:21:12, skipping insertion in model container [2023-11-23 21:21:12,116 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:21:12" (3/3) ... [2023-11-23 21:21:12,117 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-11.i [2023-11-23 21:21:12,136 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:21:12,137 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:21:12,180 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:21:12,189 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;@10992b37, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:21:12,190 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:21:12,194 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-23 21:21:12,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-23 21:21:12,204 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:21:12,205 INFO L195 NwaCegarLoop]: trace histogram [19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:21:12,206 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:21:12,210 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:21:12,211 INFO L85 PathProgramCache]: Analyzing trace with hash -513095066, now seen corresponding path program 1 times [2023-11-23 21:21:12,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:21:12,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553209007] [2023-11-23 21:21:12,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:21:12,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:21:12,378 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:21:12,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [325510186] [2023-11-23 21:21:12,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:21:12,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:21:12,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a667fa4-17d1-4220-9c04-435198aef503/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:21:12,382 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a667fa4-17d1-4220-9c04-435198aef503/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:21:12,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a667fa4-17d1-4220-9c04-435198aef503/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:21:12,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:21:12,676 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:21:12,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:21:12,821 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 21:21:12,824 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:21:12,826 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:21:12,859 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a667fa4-17d1-4220-9c04-435198aef503/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:21:13,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a667fa4-17d1-4220-9c04-435198aef503/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-23 21:21:13,059 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-23 21:21:13,062 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:21:13,133 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:21:13 BoogieIcfgContainer [2023-11-23 21:21:13,134 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:21:13,134 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:21:13,135 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:21:13,135 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:21:13,135 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:21:12" (3/4) ... [2023-11-23 21:21:13,138 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 21:21:13,139 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:21:13,141 INFO L158 Benchmark]: Toolchain (without parser) took 2211.10ms. Allocated memory is still 174.1MB. Free memory was 143.8MB in the beginning and 67.9MB in the end (delta: 75.9MB). Peak memory consumption was 75.5MB. Max. memory is 16.1GB. [2023-11-23 21:21:13,141 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 125.8MB. Free memory is still 72.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:21:13,142 INFO L158 Benchmark]: CACSL2BoogieTranslator took 419.05ms. Allocated memory is still 174.1MB. Free memory was 143.4MB in the beginning and 130.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-23 21:21:13,143 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.78ms. Allocated memory is still 174.1MB. Free memory was 130.8MB in the beginning and 128.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:21:13,143 INFO L158 Benchmark]: Boogie Preprocessor took 42.86ms. Allocated memory is still 174.1MB. Free memory was 128.7MB in the beginning and 127.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:21:13,144 INFO L158 Benchmark]: RCFGBuilder took 633.77ms. Allocated memory is still 174.1MB. Free memory was 127.2MB in the beginning and 102.1MB in the end (delta: 25.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-23 21:21:13,145 INFO L158 Benchmark]: TraceAbstraction took 1028.39ms. Allocated memory is still 174.1MB. Free memory was 101.4MB in the beginning and 68.5MB in the end (delta: 32.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2023-11-23 21:21:13,146 INFO L158 Benchmark]: Witness Printer took 5.04ms. Allocated memory is still 174.1MB. Free memory was 68.5MB in the beginning and 67.9MB in the end (delta: 679.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:21:13,150 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 125.8MB. Free memory is still 72.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 419.05ms. Allocated memory is still 174.1MB. Free memory was 143.4MB in the beginning and 130.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.78ms. Allocated memory is still 174.1MB. Free memory was 130.8MB in the beginning and 128.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.86ms. Allocated memory is still 174.1MB. Free memory was 128.7MB in the beginning and 127.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 633.77ms. Allocated memory is still 174.1MB. Free memory was 127.2MB in the beginning and 102.1MB in the end (delta: 25.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1028.39ms. Allocated memory is still 174.1MB. Free memory was 101.4MB in the beginning and 68.5MB in the end (delta: 32.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 5.04ms. Allocated memory is still 174.1MB. Free memory was 68.5MB in the beginning and 67.9MB in the end (delta: 679.8kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 39, overapproximation of someBinaryFLOATComparisonOperation at line 42. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed char var_1_1 = -16; [L23] double var_1_2 = 50.75; [L24] unsigned char var_1_5 = 1; [L25] unsigned char var_1_6 = 0; [L26] signed char var_1_7 = 10; [L27] float var_1_8 = 32.5; [L28] float var_1_9 = 1000000.7; [L29] float var_1_10 = 1.2; [L30] unsigned short int var_1_11 = 256; [L31] signed long int var_1_12 = -64; [L32] signed long int var_1_13 = -16; [L33] unsigned short int var_1_14 = 56281; [L34] unsigned short int var_1_15 = 32; [L35] float last_1_var_1_8 = 32.5; [L102] isInitial = 1 [L103] FCALL initially() [L104] int k_loop; [L105] k_loop = 0 VAL [isInitial=1, k_loop=0, last_1_var_1_8=65/2, var_1_10=6/5, var_1_11=256, var_1_12=-64, var_1_13=-16, var_1_14=56281, var_1_15=32, var_1_1=-16, var_1_2=203/4, var_1_5=1, var_1_6=0, var_1_7=10, var_1_8=65/2, var_1_9=10000007/10] [L105] COND TRUE k_loop < 1 [L106] CALL updateLastVariables() [L95] last_1_var_1_8 = var_1_8 [L106] RET updateLastVariables() [L107] CALL updateVariables() [L64] var_1_2 = __VERIFIER_nondet_double() [L65] CALL assume_abort_if_not((var_1_2 >= 0.0F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=65/2, var_1_10=6/5, var_1_11=256, var_1_12=-64, var_1_13=-16, var_1_14=56281, var_1_15=32, var_1_1=-16, var_1_5=1, var_1_6=0, var_1_7=10, var_1_8=65/2, var_1_9=10000007/10] [L20] COND FALSE !(!cond) [L65] RET assume_abort_if_not((var_1_2 >= 0.0F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_8=65/2, var_1_10=6/5, var_1_11=256, var_1_12=-64, var_1_13=-16, var_1_14=56281, var_1_15=32, var_1_1=-16, var_1_5=1, var_1_6=0, var_1_7=10, var_1_8=65/2, var_1_9=10000007/10] [L66] var_1_5 = __VERIFIER_nondet_uchar() [L67] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=65/2, var_1_10=6/5, var_1_11=256, var_1_12=-64, var_1_13=-16, var_1_14=56281, var_1_15=32, var_1_1=-16, var_1_6=0, var_1_7=10, var_1_8=65/2, var_1_9=10000007/10] [L20] COND FALSE !(!cond) [L67] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, last_1_var_1_8=65/2, var_1_10=6/5, var_1_11=256, var_1_12=-64, var_1_13=-16, var_1_14=56281, var_1_15=32, var_1_1=-16, var_1_6=0, var_1_7=10, var_1_8=65/2, var_1_9=10000007/10] [L68] CALL assume_abort_if_not(var_1_5 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=65/2, var_1_10=6/5, var_1_11=256, var_1_12=-64, var_1_13=-16, var_1_14=56281, var_1_15=32, var_1_1=-16, var_1_5=1, var_1_6=0, var_1_7=10, var_1_8=65/2, var_1_9=10000007/10] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not(var_1_5 <= 1) VAL [isInitial=1, last_1_var_1_8=65/2, var_1_10=6/5, var_1_11=256, var_1_12=-64, var_1_13=-16, var_1_14=56281, var_1_15=32, var_1_1=-16, var_1_5=1, var_1_6=0, var_1_7=10, var_1_8=65/2, var_1_9=10000007/10] [L69] var_1_6 = __VERIFIER_nondet_uchar() [L70] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=65/2, var_1_10=6/5, var_1_11=256, var_1_12=-64, var_1_13=-16, var_1_14=56281, var_1_15=32, var_1_1=-16, var_1_5=1, var_1_7=10, var_1_8=65/2, var_1_9=10000007/10] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, last_1_var_1_8=65/2, var_1_10=6/5, var_1_11=256, var_1_12=-64, var_1_13=-16, var_1_14=56281, var_1_15=32, var_1_1=-16, var_1_5=1, var_1_7=10, var_1_8=65/2, var_1_9=10000007/10] [L71] CALL assume_abort_if_not(var_1_6 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=65/2, var_1_10=6/5, var_1_11=256, var_1_12=-64, var_1_13=-16, var_1_14=56281, var_1_15=32, var_1_1=-16, var_1_5=1, var_1_6=1, var_1_7=10, var_1_8=65/2, var_1_9=10000007/10] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_6 <= 1) VAL [isInitial=1, last_1_var_1_8=65/2, var_1_10=6/5, var_1_11=256, var_1_12=-64, var_1_13=-16, var_1_14=56281, var_1_15=32, var_1_1=-16, var_1_5=1, var_1_6=1, var_1_7=10, var_1_8=65/2, var_1_9=10000007/10] [L72] var_1_7 = __VERIFIER_nondet_char() [L73] CALL assume_abort_if_not(var_1_7 >= -127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=65/2, var_1_10=6/5, var_1_11=256, var_1_12=-64, var_1_13=-16, var_1_14=56281, var_1_15=32, var_1_1=-16, var_1_5=1, var_1_6=1, var_1_7=-17, var_1_8=65/2, var_1_9=10000007/10] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(var_1_7 >= -127) VAL [isInitial=1, last_1_var_1_8=65/2, var_1_10=6/5, var_1_11=256, var_1_12=-64, var_1_13=-16, var_1_14=56281, var_1_15=32, var_1_1=-16, var_1_5=1, var_1_6=1, var_1_7=-17, var_1_8=65/2, var_1_9=10000007/10] [L74] CALL assume_abort_if_not(var_1_7 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=65/2, var_1_10=6/5, var_1_11=256, var_1_12=-64, var_1_13=-16, var_1_14=56281, var_1_15=32, var_1_1=-16, var_1_5=1, var_1_6=1, var_1_7=-17, var_1_8=65/2, var_1_9=10000007/10] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_7 <= 126) VAL [isInitial=1, last_1_var_1_8=65/2, var_1_10=6/5, var_1_11=256, var_1_12=-64, var_1_13=-16, var_1_14=56281, var_1_15=32, var_1_1=-16, var_1_5=1, var_1_6=1, var_1_7=-17, var_1_8=65/2, var_1_9=10000007/10] [L75] var_1_9 = __VERIFIER_nondet_float() [L76] CALL assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=65/2, var_1_10=6/5, var_1_11=256, var_1_12=-64, var_1_13=-16, var_1_14=56281, var_1_15=32, var_1_1=-16, var_1_5=1, var_1_6=1, var_1_7=-17, var_1_8=65/2] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_8=65/2, var_1_10=6/5, var_1_11=256, var_1_12=-64, var_1_13=-16, var_1_14=56281, var_1_15=32, var_1_1=-16, var_1_5=1, var_1_6=1, var_1_7=-17, var_1_8=65/2] [L77] var_1_10 = __VERIFIER_nondet_float() [L78] CALL assume_abort_if_not((var_1_10 >= -922337.2036854765600e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=65/2, var_1_11=256, var_1_12=-64, var_1_13=-16, var_1_14=56281, var_1_15=32, var_1_1=-16, var_1_5=1, var_1_6=1, var_1_7=-17, var_1_8=65/2] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not((var_1_10 >= -922337.2036854765600e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_8=65/2, var_1_11=256, var_1_12=-64, var_1_13=-16, var_1_14=56281, var_1_15=32, var_1_1=-16, var_1_5=1, var_1_6=1, var_1_7=-17, var_1_8=65/2] [L79] var_1_12 = __VERIFIER_nondet_long() [L80] CALL assume_abort_if_not(var_1_12 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=65/2, var_1_11=256, var_1_12=-2, var_1_13=-16, var_1_14=56281, var_1_15=32, var_1_1=-16, var_1_5=1, var_1_6=1, var_1_7=-17, var_1_8=65/2] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(var_1_12 >= -2147483648) VAL [isInitial=1, last_1_var_1_8=65/2, var_1_11=256, var_1_12=-2, var_1_13=-16, var_1_14=56281, var_1_15=32, var_1_1=-16, var_1_5=1, var_1_6=1, var_1_7=-17, var_1_8=65/2] [L81] CALL assume_abort_if_not(var_1_12 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=65/2, var_1_11=256, var_1_12=-2, var_1_13=-16, var_1_14=56281, var_1_15=32, var_1_1=-16, var_1_5=1, var_1_6=1, var_1_7=-17, var_1_8=65/2] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(var_1_12 <= 2147483647) VAL [isInitial=1, last_1_var_1_8=65/2, var_1_11=256, var_1_12=-2, var_1_13=-16, var_1_14=56281, var_1_15=32, var_1_1=-16, var_1_5=1, var_1_6=1, var_1_7=-17, var_1_8=65/2] [L82] CALL assume_abort_if_not(var_1_12 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=65/2, var_1_11=256, var_1_12=-2, var_1_13=-16, var_1_14=56281, var_1_15=32, var_1_1=-16, var_1_5=1, var_1_6=1, var_1_7=-17, var_1_8=65/2] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not(var_1_12 != 0) VAL [isInitial=1, last_1_var_1_8=65/2, var_1_11=256, var_1_12=-2, var_1_13=-16, var_1_14=56281, var_1_15=32, var_1_1=-16, var_1_5=1, var_1_6=1, var_1_7=-17, var_1_8=65/2] [L83] var_1_13 = __VERIFIER_nondet_long() [L84] CALL assume_abort_if_not(var_1_13 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=65/2, var_1_11=256, var_1_12=-2, var_1_13=-1, var_1_14=56281, var_1_15=32, var_1_1=-16, var_1_5=1, var_1_6=1, var_1_7=-17, var_1_8=65/2] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(var_1_13 >= -2147483648) VAL [isInitial=1, last_1_var_1_8=65/2, var_1_11=256, var_1_12=-2, var_1_13=-1, var_1_14=56281, var_1_15=32, var_1_1=-16, var_1_5=1, var_1_6=1, var_1_7=-17, var_1_8=65/2] [L85] CALL assume_abort_if_not(var_1_13 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=65/2, var_1_11=256, var_1_12=-2, var_1_13=-1, var_1_14=56281, var_1_15=32, var_1_1=-16, var_1_5=1, var_1_6=1, var_1_7=-17, var_1_8=65/2] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(var_1_13 <= 2147483647) VAL [isInitial=1, last_1_var_1_8=65/2, var_1_11=256, var_1_12=-2, var_1_13=-1, var_1_14=56281, var_1_15=32, var_1_1=-16, var_1_5=1, var_1_6=1, var_1_7=-17, var_1_8=65/2] [L86] CALL assume_abort_if_not(var_1_13 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=65/2, var_1_11=256, var_1_12=-2, var_1_13=-1, var_1_14=56281, var_1_15=32, var_1_1=-16, var_1_5=1, var_1_6=1, var_1_7=-17, var_1_8=65/2] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not(var_1_13 != 0) VAL [isInitial=1, last_1_var_1_8=65/2, var_1_11=256, var_1_12=-2, var_1_13=-1, var_1_14=56281, var_1_15=32, var_1_1=-16, var_1_5=1, var_1_6=1, var_1_7=-17, var_1_8=65/2] [L87] var_1_14 = __VERIFIER_nondet_ushort() [L88] CALL assume_abort_if_not(var_1_14 >= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=65/2, var_1_11=256, var_1_12=-2, var_1_13=-1, var_1_14=32767, var_1_15=32, var_1_1=-16, var_1_5=1, var_1_6=1, var_1_7=-17, var_1_8=65/2] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(var_1_14 >= 32767) VAL [isInitial=1, last_1_var_1_8=65/2, var_1_11=256, var_1_12=-2, var_1_13=-1, var_1_14=32767, var_1_15=32, var_1_1=-16, var_1_5=1, var_1_6=1, var_1_7=-17, var_1_8=65/2] [L89] CALL assume_abort_if_not(var_1_14 <= 65534) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=65/2, var_1_11=256, var_1_12=-2, var_1_13=-1, var_1_14=32767, var_1_15=32, var_1_1=-16, var_1_5=1, var_1_6=1, var_1_7=-17, var_1_8=65/2] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not(var_1_14 <= 65534) VAL [isInitial=1, last_1_var_1_8=65/2, var_1_11=256, var_1_12=-2, var_1_13=-1, var_1_14=32767, var_1_15=32, var_1_1=-16, var_1_5=1, var_1_6=1, var_1_7=-17, var_1_8=65/2] [L90] var_1_15 = __VERIFIER_nondet_ushort() [L91] CALL assume_abort_if_not(var_1_15 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=65/2, var_1_11=256, var_1_12=-2, var_1_13=-1, var_1_14=32767, var_1_1=-16, var_1_5=1, var_1_6=1, var_1_7=-17, var_1_8=65/2] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not(var_1_15 >= 0) VAL [isInitial=1, last_1_var_1_8=65/2, var_1_11=256, var_1_12=-2, var_1_13=-1, var_1_14=32767, var_1_1=-16, var_1_5=1, var_1_6=1, var_1_7=-17, var_1_8=65/2] [L92] CALL assume_abort_if_not(var_1_15 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=65/2, var_1_11=256, var_1_12=-2, var_1_13=-1, var_1_14=32767, var_1_15=0, var_1_1=-16, var_1_5=1, var_1_6=1, var_1_7=-17, var_1_8=65/2] [L20] COND FALSE !(!cond) [L92] RET assume_abort_if_not(var_1_15 <= 32767) VAL [isInitial=1, last_1_var_1_8=65/2, var_1_11=256, var_1_12=-2, var_1_13=-1, var_1_14=32767, var_1_15=0, var_1_1=-16, var_1_5=1, var_1_6=1, var_1_7=-17, var_1_8=65/2] [L107] RET updateVariables() [L108] CALL step() [L39] COND TRUE last_1_var_1_8 >= var_1_2 [L40] COND TRUE \read(var_1_6) [L41] COND FALSE !(! var_1_5) [L44] var_1_8 = var_1_9 [L48] unsigned char stepLocal_0 = var_1_5; [L49] COND FALSE !((var_1_2 - 5.25) < (var_1_8 * (var_1_8 * 199.4))) [L58] signed long int stepLocal_1 = var_1_1 / ((((var_1_12) < (var_1_13)) ? (var_1_12) : (var_1_13))); [L59] COND FALSE !(stepLocal_1 < var_1_7) [L108] RET step() [L109] CALL, EXPR property() [L98-L99] return ((((var_1_2 - 5.25) < (var_1_8 * (var_1_8 * 199.4))) ? ((var_1_5 && var_1_6) ? ((var_1_8 < var_1_8) ? (var_1_1 == ((signed char) var_1_7)) : (var_1_1 == ((signed char) var_1_7))) : 1) : 1) && ((last_1_var_1_8 >= var_1_2) ? (var_1_6 ? ((! var_1_5) ? (var_1_8 == ((float) ((((var_1_9) > (var_1_10)) ? (var_1_9) : (var_1_10))))) : (var_1_8 == ((float) var_1_9))) : 1) : 1)) && (((var_1_1 / ((((var_1_12) < (var_1_13)) ? (var_1_12) : (var_1_13)))) < var_1_7) ? (var_1_11 == ((unsigned short int) (var_1_14 - var_1_15))) : 1) ; [L109] RET, EXPR property() [L109] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_8=65/2, var_1_10=0, var_1_11=256, var_1_12=-2, var_1_13=-1, var_1_14=32767, var_1_15=0, var_1_1=-16, var_1_5=1, var_1_6=1, var_1_7=-17, var_1_8=65/2, var_1_9=65/2] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_8=65/2, var_1_10=0, var_1_11=256, var_1_12=-2, var_1_13=-1, var_1_14=32767, var_1_15=0, var_1_1=-16, var_1_5=1, var_1_6=1, var_1_7=-17, var_1_8=65/2, var_1_9=65/2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 1, TraceHistogramMax: 19, 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=38occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 71 NumberOfCodeBlocks, 71 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 21:21:13,199 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a667fa4-17d1-4220-9c04-435198aef503/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_2a667fa4-17d1-4220-9c04-435198aef503/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a667fa4-17d1-4220-9c04-435198aef503/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_2a667fa4-17d1-4220-9c04-435198aef503/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a667fa4-17d1-4220-9c04-435198aef503/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-11.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a667fa4-17d1-4220-9c04-435198aef503/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_2a667fa4-17d1-4220-9c04-435198aef503/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 4cf4650f742700c06e6fa5ebc534ab82b3cf3ef4f696ea5e846e5553fd9ecb84 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:21:16,117 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:21:16,262 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a667fa4-17d1-4220-9c04-435198aef503/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-23 21:21:16,271 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:21:16,272 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:21:16,320 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:21:16,321 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:21:16,322 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:21:16,323 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:21:16,323 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:21:16,324 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:21:16,325 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:21:16,325 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:21:16,331 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:21:16,331 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:21:16,332 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:21:16,334 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:21:16,335 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:21:16,336 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:21:16,337 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:21:16,338 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:21:16,338 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:21:16,339 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:21:16,339 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:21:16,340 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 21:21:16,340 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 21:21:16,341 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 21:21:16,341 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:21:16,342 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:21:16,342 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:21:16,344 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:21:16,344 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:21:16,345 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:21:16,345 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:21:16,346 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:21:16,346 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:21:16,346 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:21:16,347 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:21:16,347 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 21:21:16,348 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 21:21:16,349 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:21:16,349 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:21:16,349 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:21:16,350 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:21:16,350 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_2a667fa4-17d1-4220-9c04-435198aef503/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a667fa4-17d1-4220-9c04-435198aef503/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4cf4650f742700c06e6fa5ebc534ab82b3cf3ef4f696ea5e846e5553fd9ecb84 [2023-11-23 21:21:16,752 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:21:16,783 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:21:16,786 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:21:16,788 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:21:16,788 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:21:16,790 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a667fa4-17d1-4220-9c04-435198aef503/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-11.i [2023-11-23 21:21:20,271 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:21:20,576 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:21:20,577 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a667fa4-17d1-4220-9c04-435198aef503/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-11.i [2023-11-23 21:21:20,591 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a667fa4-17d1-4220-9c04-435198aef503/bin/utaipan-verify-mE87zJ7Ire/data/9d091fc42/e723cfefef6146b1af9f3c015aa056b6/FLAGd01ad54cc [2023-11-23 21:21:20,607 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a667fa4-17d1-4220-9c04-435198aef503/bin/utaipan-verify-mE87zJ7Ire/data/9d091fc42/e723cfefef6146b1af9f3c015aa056b6 [2023-11-23 21:21:20,614 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:21:20,617 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:21:20,618 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:21:20,618 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:21:20,624 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:21:20,625 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:21:20" (1/1) ... [2023-11-23 21:21:20,626 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e824d32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:20, skipping insertion in model container [2023-11-23 21:21:20,627 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:21:20" (1/1) ... [2023-11-23 21:21:20,662 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:21:20,829 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_2a667fa4-17d1-4220-9c04-435198aef503/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-11.i[915,928] [2023-11-23 21:21:20,875 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:21:20,901 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:21:20,916 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_2a667fa4-17d1-4220-9c04-435198aef503/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-11.i[915,928] [2023-11-23 21:21:20,940 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:21:20,961 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:21:20,962 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:20 WrapperNode [2023-11-23 21:21:20,962 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:21:20,964 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:21:20,964 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:21:20,964 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:21:20,972 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:20" (1/1) ... [2023-11-23 21:21:20,986 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:20" (1/1) ... [2023-11-23 21:21:21,018 INFO L138 Inliner]: procedures = 27, calls = 32, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 117 [2023-11-23 21:21:21,018 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:21:21,019 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:21:21,020 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:21:21,020 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:21:21,031 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:20" (1/1) ... [2023-11-23 21:21:21,032 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:20" (1/1) ... [2023-11-23 21:21:21,048 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:20" (1/1) ... [2023-11-23 21:21:21,049 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:20" (1/1) ... [2023-11-23 21:21:21,060 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:20" (1/1) ... [2023-11-23 21:21:21,064 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:20" (1/1) ... [2023-11-23 21:21:21,068 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:20" (1/1) ... [2023-11-23 21:21:21,070 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:20" (1/1) ... [2023-11-23 21:21:21,075 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:21:21,077 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:21:21,077 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:21:21,077 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:21:21,078 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:20" (1/1) ... [2023-11-23 21:21:21,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:21:21,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a667fa4-17d1-4220-9c04-435198aef503/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:21:21,175 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a667fa4-17d1-4220-9c04-435198aef503/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:21:21,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a667fa4-17d1-4220-9c04-435198aef503/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:21:21,231 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:21:21,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 21:21:21,232 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:21:21,232 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:21:21,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:21:21,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:21:21,328 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:21:21,332 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:21:28,057 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:21:28,105 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:21:28,105 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:21:28,106 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:21:28 BoogieIcfgContainer [2023-11-23 21:21:28,106 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:21:28,109 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:21:28,110 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:21:28,113 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:21:28,113 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:21:20" (1/3) ... [2023-11-23 21:21:28,114 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14d57880 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:21:28, skipping insertion in model container [2023-11-23 21:21:28,114 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:20" (2/3) ... [2023-11-23 21:21:28,115 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14d57880 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:21:28, skipping insertion in model container [2023-11-23 21:21:28,115 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:21:28" (3/3) ... [2023-11-23 21:21:28,117 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-11.i [2023-11-23 21:21:28,136 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:21:28,137 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:21:28,188 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:21:28,194 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;@663782e0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:21:28,195 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:21:28,199 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 29 states have (on average 1.4137931034482758) internal successors, (41), 30 states have internal predecessors, (41), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-23 21:21:28,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-23 21:21:28,212 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:21:28,213 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:21:28,214 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:21:28,219 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:21:28,219 INFO L85 PathProgramCache]: Analyzing trace with hash -958667284, now seen corresponding path program 1 times [2023-11-23 21:21:28,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:21:28,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [919932604] [2023-11-23 21:21:28,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:21:28,234 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 21:21:28,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a667fa4-17d1-4220-9c04-435198aef503/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:21:28,236 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a667fa4-17d1-4220-9c04-435198aef503/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 21:21:28,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a667fa4-17d1-4220-9c04-435198aef503/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 21:21:28,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:21:28,968 INFO L262 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 21:21:28,979 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:21:29,024 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2023-11-23 21:21:29,024 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:21:29,025 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:21:29,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [919932604] [2023-11-23 21:21:29,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [919932604] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:21:29,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:21:29,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:21:29,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155111565] [2023-11-23 21:21:29,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:21:29,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:21:29,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:21:29,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:21:29,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:21:29,067 INFO L87 Difference]: Start difference. First operand has 51 states, 29 states have (on average 1.4137931034482758) internal successors, (41), 30 states have internal predecessors, (41), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-23 21:21:31,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:21:31,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:21:31,381 INFO L93 Difference]: Finished difference Result 101 states and 176 transitions. [2023-11-23 21:21:31,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:21:31,383 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 115 [2023-11-23 21:21:31,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:21:31,391 INFO L225 Difference]: With dead ends: 101 [2023-11-23 21:21:31,391 INFO L226 Difference]: Without dead ends: 49 [2023-11-23 21:21:31,395 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 114 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 21:21:31,399 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:21:31,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 70 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2023-11-23 21:21:31,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2023-11-23 21:21:31,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2023-11-23 21:21:31,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 28 states have (on average 1.25) internal successors, (35), 28 states have internal predecessors, (35), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-23 21:21:31,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 73 transitions. [2023-11-23 21:21:31,447 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 73 transitions. Word has length 115 [2023-11-23 21:21:31,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:21:31,448 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 73 transitions. [2023-11-23 21:21:31,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-23 21:21:31,449 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 73 transitions. [2023-11-23 21:21:31,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-23 21:21:31,452 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:21:31,453 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:21:31,473 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a667fa4-17d1-4220-9c04-435198aef503/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 21:21:31,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a667fa4-17d1-4220-9c04-435198aef503/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 21:21:31,668 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:21:31,669 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:21:31,669 INFO L85 PathProgramCache]: Analyzing trace with hash -1557345754, now seen corresponding path program 1 times [2023-11-23 21:21:31,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:21:31,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [644942216] [2023-11-23 21:21:31,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:21:31,671 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 21:21:31,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a667fa4-17d1-4220-9c04-435198aef503/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:21:31,673 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a667fa4-17d1-4220-9c04-435198aef503/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 21:21:31,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a667fa4-17d1-4220-9c04-435198aef503/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 21:21:32,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:21:32,383 INFO L262 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 21:21:32,396 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:21:43,784 WARN L854 $PredicateComparison]: unable to prove that (and (not (fp.lt (fp.sub c_currentRoundingMode c_~var_1_2~0 ((_ to_fp 11 53) c_currentRoundingMode (/ 21.0 4.0))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_8~0))) (fp.mul c_currentRoundingMode .cse0 (fp.mul c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 997.0 5.0))))))) (not (fp.geq ((_ to_fp 11 53) c_currentRoundingMode c_~last_1_var_1_8~0) c_~var_1_2~0))) is different from false [2023-11-23 21:21:45,867 WARN L876 $PredicateComparison]: unable to prove that (and (not (fp.lt (fp.sub c_currentRoundingMode c_~var_1_2~0 ((_ to_fp 11 53) c_currentRoundingMode (/ 21.0 4.0))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_8~0))) (fp.mul c_currentRoundingMode .cse0 (fp.mul c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 997.0 5.0))))))) (not (fp.geq ((_ to_fp 11 53) c_currentRoundingMode c_~last_1_var_1_8~0) c_~var_1_2~0))) is different from true [2023-11-23 21:22:08,982 WARN L854 $PredicateComparison]: unable to prove that (and (= ((_ extract 15 0) (bvadd (bvneg ((_ zero_extend 16) c_~var_1_15~0)) ((_ zero_extend 16) c_~var_1_14~0))) c_~var_1_11~0) (not (fp.lt (fp.sub c_currentRoundingMode c_~var_1_2~0 ((_ to_fp 11 53) c_currentRoundingMode (/ 21.0 4.0))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_8~0))) (fp.mul c_currentRoundingMode .cse0 (fp.mul c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 997.0 5.0))))))) (not (fp.geq ((_ to_fp 11 53) c_currentRoundingMode c_~last_1_var_1_8~0) c_~var_1_2~0))) is different from false [2023-11-23 21:22:11,053 WARN L876 $PredicateComparison]: unable to prove that (and (= ((_ extract 15 0) (bvadd (bvneg ((_ zero_extend 16) c_~var_1_15~0)) ((_ zero_extend 16) c_~var_1_14~0))) c_~var_1_11~0) (not (fp.lt (fp.sub c_currentRoundingMode c_~var_1_2~0 ((_ to_fp 11 53) c_currentRoundingMode (/ 21.0 4.0))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_8~0))) (fp.mul c_currentRoundingMode .cse0 (fp.mul c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 997.0 5.0))))))) (not (fp.geq ((_ to_fp 11 53) c_currentRoundingMode c_~last_1_var_1_8~0) c_~var_1_2~0))) is different from true