./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-98.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_37f54ea6-2a90-4ac2-a13d-582ba43c71ec/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f54ea6-2a90-4ac2-a13d-582ba43c71ec/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_37f54ea6-2a90-4ac2-a13d-582ba43c71ec/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f54ea6-2a90-4ac2-a13d-582ba43c71ec/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-98.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f54ea6-2a90-4ac2-a13d-582ba43c71ec/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_37f54ea6-2a90-4ac2-a13d-582ba43c71ec/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 4d15259895261afd15480d8dfa68eefc339e98188967098541cbbfc5e69c9e01 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:37:33,024 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:37:33,152 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f54ea6-2a90-4ac2-a13d-582ba43c71ec/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 20:37:33,161 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:37:33,162 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:37:33,203 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:37:33,204 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:37:33,205 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:37:33,206 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:37:33,211 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:37:33,211 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:37:33,213 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:37:33,213 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:37:33,215 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 20:37:33,216 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:37:33,216 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:37:33,217 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 20:37:33,217 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 20:37:33,218 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:37:33,218 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 20:37:33,219 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 20:37:33,219 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 20:37:33,221 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:37:33,221 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:37:33,222 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:37:33,222 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:37:33,222 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:37:33,223 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:37:33,223 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:37:33,224 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:37:33,225 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:37:33,225 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:37:33,226 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:37:33,226 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:37:33,226 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:37:33,227 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:37:33,227 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:37:33,227 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:37:33,228 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:37:33,228 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:37:33,228 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:37:33,228 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 20:37:33,229 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:37:33,229 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:37:33,230 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:37:33,230 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:37:33,230 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:37:33,230 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_37f54ea6-2a90-4ac2-a13d-582ba43c71ec/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f54ea6-2a90-4ac2-a13d-582ba43c71ec/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d15259895261afd15480d8dfa68eefc339e98188967098541cbbfc5e69c9e01 [2023-11-23 20:37:33,586 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:37:33,636 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:37:33,638 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:37:33,641 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:37:33,641 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:37:33,642 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f54ea6-2a90-4ac2-a13d-582ba43c71ec/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-98.i [2023-11-23 20:37:36,639 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:37:36,839 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:37:36,840 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f54ea6-2a90-4ac2-a13d-582ba43c71ec/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-98.i [2023-11-23 20:37:36,851 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f54ea6-2a90-4ac2-a13d-582ba43c71ec/bin/utaipan-verify-mE87zJ7Ire/data/c110d4abe/652cad8e4e69449ea9ff894e2b038be4/FLAGec44f725a [2023-11-23 20:37:36,867 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f54ea6-2a90-4ac2-a13d-582ba43c71ec/bin/utaipan-verify-mE87zJ7Ire/data/c110d4abe/652cad8e4e69449ea9ff894e2b038be4 [2023-11-23 20:37:36,869 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:37:36,871 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:37:36,873 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:37:36,874 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:37:36,879 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:37:36,880 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:37:36" (1/1) ... [2023-11-23 20:37:36,882 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53bf57bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:36, skipping insertion in model container [2023-11-23 20:37:36,882 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:37:36" (1/1) ... [2023-11-23 20:37:36,922 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:37:37,129 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_37f54ea6-2a90-4ac2-a13d-582ba43c71ec/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-98.i[915,928] [2023-11-23 20:37:37,169 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:37:37,182 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:37:37,193 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_37f54ea6-2a90-4ac2-a13d-582ba43c71ec/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-98.i[915,928] [2023-11-23 20:37:37,217 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:37:37,237 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:37:37,237 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:37 WrapperNode [2023-11-23 20:37:37,237 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:37:37,239 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:37:37,239 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:37:37,239 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:37:37,248 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:37" (1/1) ... [2023-11-23 20:37:37,258 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:37" (1/1) ... [2023-11-23 20:37:37,291 INFO L138 Inliner]: procedures = 26, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 129 [2023-11-23 20:37:37,292 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:37:37,293 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:37:37,293 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:37:37,293 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:37:37,304 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:37" (1/1) ... [2023-11-23 20:37:37,304 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:37" (1/1) ... [2023-11-23 20:37:37,307 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:37" (1/1) ... [2023-11-23 20:37:37,307 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:37" (1/1) ... [2023-11-23 20:37:37,317 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:37" (1/1) ... [2023-11-23 20:37:37,321 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:37" (1/1) ... [2023-11-23 20:37:37,323 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:37" (1/1) ... [2023-11-23 20:37:37,325 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:37" (1/1) ... [2023-11-23 20:37:37,328 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:37:37,329 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:37:37,330 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:37:37,330 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:37:37,331 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:37" (1/1) ... [2023-11-23 20:37:37,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:37:37,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f54ea6-2a90-4ac2-a13d-582ba43c71ec/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:37:37,366 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f54ea6-2a90-4ac2-a13d-582ba43c71ec/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:37:37,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f54ea6-2a90-4ac2-a13d-582ba43c71ec/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:37:37,432 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:37:37,432 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 20:37:37,433 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 20:37:37,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:37:37,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:37:37,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:37:37,508 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:37:37,510 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:37:37,784 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:37:37,986 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:37:37,986 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 20:37:37,988 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:37:37 BoogieIcfgContainer [2023-11-23 20:37:37,988 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:37:37,991 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:37:37,991 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:37:37,995 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:37:37,996 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:37:36" (1/3) ... [2023-11-23 20:37:37,997 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a12c5eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:37:37, skipping insertion in model container [2023-11-23 20:37:37,998 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:37" (2/3) ... [2023-11-23 20:37:37,999 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a12c5eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:37:37, skipping insertion in model container [2023-11-23 20:37:37,999 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:37:37" (3/3) ... [2023-11-23 20:37:38,001 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-98.i [2023-11-23 20:37:38,021 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:37:38,022 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:37:38,069 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:37:38,075 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;@64580a10, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:37:38,075 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:37:38,079 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 18 states have internal predecessors, (20), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-23 20:37:38,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-23 20:37:38,089 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:37:38,090 INFO L195 NwaCegarLoop]: trace histogram [20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:37:38,090 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:37:38,095 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:37:38,095 INFO L85 PathProgramCache]: Analyzing trace with hash -2023262263, now seen corresponding path program 1 times [2023-11-23 20:37:38,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:37:38,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660597818] [2023-11-23 20:37:38,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:37:38,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:37:38,337 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 20:37:38,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [651761012] [2023-11-23 20:37:38,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:37:38,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:37:38,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f54ea6-2a90-4ac2-a13d-582ba43c71ec/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:37:38,343 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f54ea6-2a90-4ac2-a13d-582ba43c71ec/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 20:37:38,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f54ea6-2a90-4ac2-a13d-582ba43c71ec/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 20:37:38,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:37:38,564 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:37:38,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:37:38,698 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 20:37:38,703 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 20:37:38,704 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 20:37:38,732 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f54ea6-2a90-4ac2-a13d-582ba43c71ec/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 20:37:38,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f54ea6-2a90-4ac2-a13d-582ba43c71ec/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-23 20:37:38,935 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-23 20:37:38,939 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 20:37:39,026 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 08:37:39 BoogieIcfgContainer [2023-11-23 20:37:39,027 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 20:37:39,027 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:37:39,027 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:37:39,028 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:37:39,028 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:37:37" (3/4) ... [2023-11-23 20:37:39,030 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 20:37:39,031 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:37:39,033 INFO L158 Benchmark]: Toolchain (without parser) took 2161.25ms. Allocated memory was 138.4MB in the beginning and 197.1MB in the end (delta: 58.7MB). Free memory was 76.5MB in the beginning and 92.8MB in the end (delta: -16.3MB). Peak memory consumption was 41.0MB. Max. memory is 16.1GB. [2023-11-23 20:37:39,033 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 138.4MB. Free memory is still 112.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:37:39,034 INFO L158 Benchmark]: CACSL2BoogieTranslator took 364.79ms. Allocated memory was 138.4MB in the beginning and 197.1MB in the end (delta: 58.7MB). Free memory was 76.3MB in the beginning and 163.0MB in the end (delta: -86.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-23 20:37:39,035 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.29ms. Allocated memory is still 197.1MB. Free memory was 163.0MB in the beginning and 160.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:37:39,035 INFO L158 Benchmark]: Boogie Preprocessor took 35.94ms. Allocated memory is still 197.1MB. Free memory was 160.9MB in the beginning and 159.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:37:39,036 INFO L158 Benchmark]: RCFGBuilder took 659.15ms. Allocated memory is still 197.1MB. Free memory was 159.3MB in the beginning and 129.4MB in the end (delta: 29.9MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-11-23 20:37:39,037 INFO L158 Benchmark]: TraceAbstraction took 1035.49ms. Allocated memory is still 197.1MB. Free memory was 128.4MB in the beginning and 92.8MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2023-11-23 20:37:39,037 INFO L158 Benchmark]: Witness Printer took 4.34ms. Allocated memory is still 197.1MB. Free memory is still 92.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:37:39,041 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 138.4MB. Free memory is still 112.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 364.79ms. Allocated memory was 138.4MB in the beginning and 197.1MB in the end (delta: 58.7MB). Free memory was 76.3MB in the beginning and 163.0MB in the end (delta: -86.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.29ms. Allocated memory is still 197.1MB. Free memory was 163.0MB in the beginning and 160.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.94ms. Allocated memory is still 197.1MB. Free memory was 160.9MB in the beginning and 159.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 659.15ms. Allocated memory is still 197.1MB. Free memory was 159.3MB in the beginning and 129.4MB in the end (delta: 29.9MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1035.49ms. Allocated memory is still 197.1MB. Free memory was 128.4MB in the beginning and 92.8MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Witness Printer took 4.34ms. Allocated memory is still 197.1MB. Free memory is still 92.8MB. 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 43, overapproximation of shiftRight at line 52, overapproximation of someBinaryArithmeticDOUBLEoperation at line 42. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] double var_1_1 = 4.8; [L23] double var_1_2 = 63.5; [L24] double var_1_3 = 9999999.5; [L25] double var_1_4 = 0.6; [L26] signed short int var_1_6 = 10; [L27] signed long int var_1_7 = -1; [L28] double var_1_8 = 32.34; [L29] unsigned char var_1_9 = 0; [L30] unsigned char var_1_11 = 1; [L31] unsigned char var_1_12 = 1; [L32] unsigned char var_1_13 = 0; [L33] unsigned char var_1_14 = 0; [L34] unsigned long int var_1_15 = 0; [L35] unsigned long int var_1_16 = 2731588682; [L36] unsigned long int var_1_17 = 2; [L37] unsigned long int var_1_18 = 50; [L38] unsigned char last_1_var_1_9 = 0; [L98] isInitial = 1 [L99] FCALL initially() [L100] COND TRUE 1 [L101] CALL updateLastVariables() [L91] last_1_var_1_9 = var_1_9 [L101] RET updateLastVariables() [L102] CALL updateVariables() [L58] var_1_2 = __VERIFIER_nondet_double() [L59] CALL assume_abort_if_not((var_1_2 >= 0.0F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854765600e+12F && var_1_2 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=0, var_1_11=1, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=2731588682, var_1_17=2, var_1_18=50, var_1_1=24/5, var_1_3=19999999/2, var_1_4=3/5, var_1_6=10, var_1_7=-1, var_1_8=1617/50, var_1_9=0] [L20] COND FALSE !(!cond) [L59] RET assume_abort_if_not((var_1_2 >= 0.0F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854765600e+12F && var_1_2 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_9=0, var_1_11=1, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=2731588682, var_1_17=2, var_1_18=50, var_1_1=24/5, var_1_3=19999999/2, var_1_4=3/5, var_1_6=10, var_1_7=-1, var_1_8=1617/50, var_1_9=0] [L60] var_1_3 = __VERIFIER_nondet_double() [L61] CALL assume_abort_if_not((var_1_3 >= 0.0F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854765600e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=0, var_1_11=1, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=2731588682, var_1_17=2, var_1_18=50, var_1_1=24/5, var_1_4=3/5, var_1_6=10, var_1_7=-1, var_1_8=1617/50, var_1_9=0] [L20] COND FALSE !(!cond) [L61] RET assume_abort_if_not((var_1_3 >= 0.0F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854765600e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_9=0, var_1_11=1, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=2731588682, var_1_17=2, var_1_18=50, var_1_1=24/5, var_1_4=3/5, var_1_6=10, var_1_7=-1, var_1_8=1617/50, var_1_9=0] [L62] var_1_6 = __VERIFIER_nondet_short() [L63] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=0, var_1_11=1, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=2731588682, var_1_17=2, var_1_18=50, var_1_1=24/5, var_1_4=3/5, var_1_6=10, var_1_7=-1, var_1_8=1617/50, var_1_9=0] [L20] COND FALSE !(!cond) [L63] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, last_1_var_1_9=0, var_1_11=1, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=2731588682, var_1_17=2, var_1_18=50, var_1_1=24/5, var_1_4=3/5, var_1_6=10, var_1_7=-1, var_1_8=1617/50, var_1_9=0] [L64] CALL assume_abort_if_not(var_1_6 <= 32) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=0, var_1_11=1, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=2731588682, var_1_17=2, var_1_18=50, var_1_1=24/5, var_1_4=3/5, var_1_6=10, var_1_7=-1, var_1_8=1617/50, var_1_9=0] [L20] COND FALSE !(!cond) [L64] RET assume_abort_if_not(var_1_6 <= 32) VAL [isInitial=1, last_1_var_1_9=0, var_1_11=1, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=2731588682, var_1_17=2, var_1_18=50, var_1_1=24/5, var_1_4=3/5, var_1_6=10, var_1_7=-1, var_1_8=1617/50, var_1_9=0] [L65] var_1_7 = __VERIFIER_nondet_long() [L66] CALL assume_abort_if_not(var_1_7 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=0, var_1_11=1, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=2731588682, var_1_17=2, var_1_18=50, var_1_1=24/5, var_1_4=3/5, var_1_6=10, var_1_7=1, var_1_8=1617/50, var_1_9=0] [L20] COND FALSE !(!cond) [L66] RET assume_abort_if_not(var_1_7 >= -2147483648) VAL [isInitial=1, last_1_var_1_9=0, var_1_11=1, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=2731588682, var_1_17=2, var_1_18=50, var_1_1=24/5, var_1_4=3/5, var_1_6=10, var_1_7=1, var_1_8=1617/50, var_1_9=0] [L67] CALL assume_abort_if_not(var_1_7 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=0, var_1_11=1, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=2731588682, var_1_17=2, var_1_18=50, var_1_1=24/5, var_1_4=3/5, var_1_6=10, var_1_7=1, var_1_8=1617/50, var_1_9=0] [L20] COND FALSE !(!cond) [L67] RET assume_abort_if_not(var_1_7 <= 2147483647) VAL [isInitial=1, last_1_var_1_9=0, var_1_11=1, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=2731588682, var_1_17=2, var_1_18=50, var_1_1=24/5, var_1_4=3/5, var_1_6=10, var_1_7=1, var_1_8=1617/50, var_1_9=0] [L68] CALL assume_abort_if_not(var_1_7 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=0, var_1_11=1, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=2731588682, var_1_17=2, var_1_18=50, var_1_1=24/5, var_1_4=3/5, var_1_6=10, var_1_7=1, var_1_8=1617/50, var_1_9=0] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not(var_1_7 != 0) VAL [isInitial=1, last_1_var_1_9=0, var_1_11=1, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=2731588682, var_1_17=2, var_1_18=50, var_1_1=24/5, var_1_4=3/5, var_1_6=10, var_1_7=1, var_1_8=1617/50, var_1_9=0] [L69] var_1_8 = __VERIFIER_nondet_double() [L70] CALL assume_abort_if_not((var_1_8 >= -461168.6018427382800e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 4611686.018427382800e+12F && var_1_8 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=0, var_1_11=1, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=2731588682, var_1_17=2, var_1_18=50, var_1_1=24/5, var_1_4=3/5, var_1_6=10, var_1_7=1, var_1_9=0] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not((var_1_8 >= -461168.6018427382800e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 4611686.018427382800e+12F && var_1_8 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_9=0, var_1_11=1, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=2731588682, var_1_17=2, var_1_18=50, var_1_1=24/5, var_1_4=3/5, var_1_6=10, var_1_7=1, var_1_9=0] [L71] var_1_11 = __VERIFIER_nondet_uchar() [L72] CALL assume_abort_if_not(var_1_11 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=0, var_1_11=1, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=2731588682, var_1_17=2, var_1_18=50, var_1_1=24/5, var_1_4=3/5, var_1_6=10, var_1_7=1, var_1_9=0] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not(var_1_11 >= 1) VAL [isInitial=1, last_1_var_1_9=0, var_1_11=1, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=2731588682, var_1_17=2, var_1_18=50, var_1_1=24/5, var_1_4=3/5, var_1_6=10, var_1_7=1, var_1_9=0] [L73] CALL assume_abort_if_not(var_1_11 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=0, var_1_11=1, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=2731588682, var_1_17=2, var_1_18=50, var_1_1=24/5, var_1_4=3/5, var_1_6=10, var_1_7=1, var_1_9=0] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(var_1_11 <= 1) VAL [isInitial=1, last_1_var_1_9=0, var_1_11=1, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=2731588682, var_1_17=2, var_1_18=50, var_1_1=24/5, var_1_4=3/5, var_1_6=10, var_1_7=1, var_1_9=0] [L74] var_1_12 = __VERIFIER_nondet_uchar() [L75] CALL assume_abort_if_not(var_1_12 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=0, var_1_11=1, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=2731588682, var_1_17=2, var_1_18=50, var_1_1=24/5, var_1_4=3/5, var_1_6=10, var_1_7=1, var_1_9=0] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(var_1_12 >= 1) VAL [isInitial=1, last_1_var_1_9=0, var_1_11=1, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=2731588682, var_1_17=2, var_1_18=50, var_1_1=24/5, var_1_4=3/5, var_1_6=10, var_1_7=1, var_1_9=0] [L76] CALL assume_abort_if_not(var_1_12 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=0, var_1_11=1, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=2731588682, var_1_17=2, var_1_18=50, var_1_1=24/5, var_1_4=3/5, var_1_6=10, var_1_7=1, var_1_9=0] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not(var_1_12 <= 1) VAL [isInitial=1, last_1_var_1_9=0, var_1_11=1, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=2731588682, var_1_17=2, var_1_18=50, var_1_1=24/5, var_1_4=3/5, var_1_6=10, var_1_7=1, var_1_9=0] [L77] var_1_13 = __VERIFIER_nondet_uchar() [L78] CALL assume_abort_if_not(var_1_13 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=0, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=2731588682, var_1_17=2, var_1_18=50, var_1_1=24/5, var_1_4=3/5, var_1_6=10, var_1_7=1, var_1_9=0] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(var_1_13 >= 1) VAL [isInitial=1, last_1_var_1_9=0, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=2731588682, var_1_17=2, var_1_18=50, var_1_1=24/5, var_1_4=3/5, var_1_6=10, var_1_7=1, var_1_9=0] [L79] CALL assume_abort_if_not(var_1_13 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=0, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=2731588682, var_1_17=2, var_1_18=50, var_1_1=24/5, var_1_4=3/5, var_1_6=10, var_1_7=1, var_1_9=0] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not(var_1_13 <= 1) VAL [isInitial=1, last_1_var_1_9=0, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=2731588682, var_1_17=2, var_1_18=50, var_1_1=24/5, var_1_4=3/5, var_1_6=10, var_1_7=1, var_1_9=0] [L80] var_1_14 = __VERIFIER_nondet_uchar() [L81] CALL assume_abort_if_not(var_1_14 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=0, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=1, var_1_15=0, var_1_16=2731588682, var_1_17=2, var_1_18=50, var_1_1=24/5, var_1_4=3/5, var_1_6=10, var_1_7=1, var_1_9=0] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(var_1_14 >= 1) VAL [isInitial=1, last_1_var_1_9=0, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=1, var_1_15=0, var_1_16=2731588682, var_1_17=2, var_1_18=50, var_1_1=24/5, var_1_4=3/5, var_1_6=10, var_1_7=1, var_1_9=0] [L82] CALL assume_abort_if_not(var_1_14 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=0, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=1, var_1_15=0, var_1_16=2731588682, var_1_17=2, var_1_18=50, var_1_1=24/5, var_1_4=3/5, var_1_6=10, var_1_7=1, var_1_9=0] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not(var_1_14 <= 1) VAL [isInitial=1, last_1_var_1_9=0, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=1, var_1_15=0, var_1_16=2731588682, var_1_17=2, var_1_18=50, var_1_1=24/5, var_1_4=3/5, var_1_6=10, var_1_7=1, var_1_9=0] [L83] var_1_16 = __VERIFIER_nondet_ulong() [L84] CALL assume_abort_if_not(var_1_16 >= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=0, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=1, var_1_15=0, var_1_16=2147483647, var_1_17=2, var_1_18=50, var_1_1=24/5, var_1_4=3/5, var_1_6=10, var_1_7=1, var_1_9=0] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(var_1_16 >= 2147483647) VAL [isInitial=1, last_1_var_1_9=0, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=1, var_1_15=0, var_1_16=2147483647, var_1_17=2, var_1_18=50, var_1_1=24/5, var_1_4=3/5, var_1_6=10, var_1_7=1, var_1_9=0] [L85] CALL assume_abort_if_not(var_1_16 <= 4294967294) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=0, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=1, var_1_15=0, var_1_16=2147483647, var_1_17=2, var_1_18=50, var_1_1=24/5, var_1_4=3/5, var_1_6=10, var_1_7=1, var_1_9=0] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(var_1_16 <= 4294967294) VAL [isInitial=1, last_1_var_1_9=0, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=1, var_1_15=0, var_1_16=2147483647, var_1_17=2, var_1_18=50, var_1_1=24/5, var_1_4=3/5, var_1_6=10, var_1_7=1, var_1_9=0] [L86] var_1_17 = __VERIFIER_nondet_ulong() [L87] CALL assume_abort_if_not(var_1_17 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=0, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=1, var_1_15=0, var_1_16=2147483647, var_1_18=50, var_1_1=24/5, var_1_4=3/5, var_1_6=10, var_1_7=1, var_1_9=0] [L20] COND FALSE !(!cond) [L87] RET assume_abort_if_not(var_1_17 >= 0) VAL [isInitial=1, last_1_var_1_9=0, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=1, var_1_15=0, var_1_16=2147483647, var_1_18=50, var_1_1=24/5, var_1_4=3/5, var_1_6=10, var_1_7=1, var_1_9=0] [L88] CALL assume_abort_if_not(var_1_17 <= 1073741823) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=0, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=1, var_1_15=0, var_1_16=2147483647, var_1_17=0, var_1_18=50, var_1_1=24/5, var_1_4=3/5, var_1_6=10, var_1_7=1, var_1_9=0] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(var_1_17 <= 1073741823) VAL [isInitial=1, last_1_var_1_9=0, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=1, var_1_15=0, var_1_16=2147483647, var_1_17=0, var_1_18=50, var_1_1=24/5, var_1_4=3/5, var_1_6=10, var_1_7=1, var_1_9=0] [L102] RET updateVariables() [L103] CALL step() [L42] var_1_1 = (var_1_2 - var_1_3) [L43] COND FALSE !(((- var_1_2) * var_1_8) == var_1_1) [L46] COND TRUE \read(var_1_14) [L47] var_1_15 = var_1_6 [L51] var_1_18 = var_1_6 [L52] EXPR var_1_18 >> var_1_6 [L52] unsigned long int stepLocal_0 = (var_1_18 >> var_1_6) / var_1_7; [L53] COND FALSE !(8 < stepLocal_0) [L103] RET step() [L104] CALL, EXPR property() [L94] EXPR (var_1_1 == ((double) (var_1_2 - var_1_3))) && ((8 < ((var_1_18 >> var_1_6) / var_1_7)) ? (var_1_4 == ((double) ((15.475 + 256.75) + var_1_8))) : 1) [L94] EXPR var_1_18 >> var_1_6 [L94] EXPR (var_1_1 == ((double) (var_1_2 - var_1_3))) && ((8 < ((var_1_18 >> var_1_6) / var_1_7)) ? (var_1_4 == ((double) ((15.475 + 256.75) + var_1_8))) : 1) [L94-L95] return ((((var_1_1 == ((double) (var_1_2 - var_1_3))) && ((8 < ((var_1_18 >> var_1_6) / var_1_7)) ? (var_1_4 == ((double) ((15.475 + 256.75) + var_1_8))) : 1)) && ((((- var_1_2) * var_1_8) == var_1_1) ? (var_1_9 == ((unsigned char) ((last_1_var_1_9 || var_1_11) && (var_1_12 && (var_1_13 && var_1_14))))) : 1)) && (var_1_14 ? (var_1_15 == ((unsigned long int) var_1_6)) : (var_1_15 == ((unsigned long int) (var_1_16 - ((((var_1_6) > ((1251570750u - var_1_17))) ? (var_1_6) : ((1251570750u - var_1_17))))))))) && (var_1_18 == ((unsigned long int) var_1_6)) ; [L104] RET, EXPR property() [L104] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_9=0, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=1, var_1_15=10, var_1_16=2147483647, var_1_17=0, var_1_18=10, var_1_4=3/5, var_1_6=10, var_1_7=1, var_1_9=0] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_9=0, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=1, var_1_15=10, var_1_16=2147483647, var_1_17=0, var_1_18=10, var_1_4=3/5, var_1_6=10, var_1_7=1, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 1, TraceHistogramMax: 20, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 75 NumberOfCodeBlocks, 75 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-23 20:37:39,076 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f54ea6-2a90-4ac2-a13d-582ba43c71ec/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_37f54ea6-2a90-4ac2-a13d-582ba43c71ec/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f54ea6-2a90-4ac2-a13d-582ba43c71ec/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_37f54ea6-2a90-4ac2-a13d-582ba43c71ec/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f54ea6-2a90-4ac2-a13d-582ba43c71ec/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-98.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f54ea6-2a90-4ac2-a13d-582ba43c71ec/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_37f54ea6-2a90-4ac2-a13d-582ba43c71ec/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 4d15259895261afd15480d8dfa68eefc339e98188967098541cbbfc5e69c9e01 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:37:41,935 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:37:42,106 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f54ea6-2a90-4ac2-a13d-582ba43c71ec/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-23 20:37:42,117 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:37:42,118 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:37:42,174 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:37:42,176 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:37:42,176 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:37:42,178 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:37:42,184 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:37:42,185 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:37:42,185 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:37:42,186 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:37:42,188 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:37:42,188 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:37:42,189 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:37:42,190 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:37:42,191 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:37:42,191 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:37:42,193 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:37:42,193 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:37:42,194 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:37:42,195 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:37:42,195 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:37:42,196 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 20:37:42,196 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 20:37:42,197 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 20:37:42,197 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:37:42,198 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:37:42,198 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:37:42,200 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:37:42,200 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 20:37:42,201 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:37:42,201 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:37:42,202 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:37:42,202 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:37:42,202 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:37:42,203 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:37:42,203 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 20:37:42,204 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 20:37:42,205 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:37:42,205 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:37:42,205 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:37:42,206 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:37:42,206 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_37f54ea6-2a90-4ac2-a13d-582ba43c71ec/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f54ea6-2a90-4ac2-a13d-582ba43c71ec/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d15259895261afd15480d8dfa68eefc339e98188967098541cbbfc5e69c9e01 [2023-11-23 20:37:42,661 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:37:42,696 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:37:42,699 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:37:42,700 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:37:42,701 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:37:42,702 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f54ea6-2a90-4ac2-a13d-582ba43c71ec/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-98.i [2023-11-23 20:37:46,077 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:37:46,395 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:37:46,396 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f54ea6-2a90-4ac2-a13d-582ba43c71ec/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-98.i [2023-11-23 20:37:46,407 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f54ea6-2a90-4ac2-a13d-582ba43c71ec/bin/utaipan-verify-mE87zJ7Ire/data/1c6e3c715/be8fc2a68a864628bf20cfd08cdba820/FLAG855a1cab2 [2023-11-23 20:37:46,424 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f54ea6-2a90-4ac2-a13d-582ba43c71ec/bin/utaipan-verify-mE87zJ7Ire/data/1c6e3c715/be8fc2a68a864628bf20cfd08cdba820 [2023-11-23 20:37:46,427 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:37:46,430 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:37:46,431 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:37:46,432 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:37:46,438 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:37:46,439 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:37:46" (1/1) ... [2023-11-23 20:37:46,440 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b2c7fa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:46, skipping insertion in model container [2023-11-23 20:37:46,441 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:37:46" (1/1) ... [2023-11-23 20:37:46,474 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:37:46,653 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_37f54ea6-2a90-4ac2-a13d-582ba43c71ec/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-98.i[915,928] [2023-11-23 20:37:46,717 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:37:46,743 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:37:46,760 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_37f54ea6-2a90-4ac2-a13d-582ba43c71ec/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-98.i[915,928] [2023-11-23 20:37:46,789 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:37:46,813 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:37:46,814 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:46 WrapperNode [2023-11-23 20:37:46,814 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:37:46,815 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:37:46,815 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:37:46,816 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:37:46,825 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:46" (1/1) ... [2023-11-23 20:37:46,840 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:46" (1/1) ... [2023-11-23 20:37:46,896 INFO L138 Inliner]: procedures = 27, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 115 [2023-11-23 20:37:46,897 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:37:46,898 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:37:46,898 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:37:46,898 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:37:46,913 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:46" (1/1) ... [2023-11-23 20:37:46,914 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:46" (1/1) ... [2023-11-23 20:37:46,932 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:46" (1/1) ... [2023-11-23 20:37:46,947 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:46" (1/1) ... [2023-11-23 20:37:46,967 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:46" (1/1) ... [2023-11-23 20:37:46,971 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:46" (1/1) ... [2023-11-23 20:37:46,975 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:46" (1/1) ... [2023-11-23 20:37:46,988 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:46" (1/1) ... [2023-11-23 20:37:46,992 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:37:46,993 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:37:47,003 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:37:47,003 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:37:47,004 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:46" (1/1) ... [2023-11-23 20:37:47,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:37:47,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f54ea6-2a90-4ac2-a13d-582ba43c71ec/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:37:47,045 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f54ea6-2a90-4ac2-a13d-582ba43c71ec/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:37:47,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f54ea6-2a90-4ac2-a13d-582ba43c71ec/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:37:47,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:37:47,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 20:37:47,107 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 20:37:47,107 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 20:37:47,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:37:47,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:37:47,260 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:37:47,265 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:37:53,628 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:37:53,683 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:37:53,684 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 20:37:53,684 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:37:53 BoogieIcfgContainer [2023-11-23 20:37:53,685 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:37:53,687 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:37:53,687 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:37:53,691 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:37:53,691 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:37:46" (1/3) ... [2023-11-23 20:37:53,692 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f48d712 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:37:53, skipping insertion in model container [2023-11-23 20:37:53,692 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:46" (2/3) ... [2023-11-23 20:37:53,693 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f48d712 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:37:53, skipping insertion in model container [2023-11-23 20:37:53,693 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:37:53" (3/3) ... [2023-11-23 20:37:53,694 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-98.i [2023-11-23 20:37:53,716 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:37:53,716 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:37:53,769 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:37:53,777 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;@59bf69e5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:37:53,777 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:37:53,782 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 25 states have (on average 1.32) internal successors, (33), 26 states have internal predecessors, (33), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-23 20:37:53,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-11-23 20:37:53,803 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:37:53,805 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:37:53,805 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:37:53,812 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:37:53,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1090282528, now seen corresponding path program 1 times [2023-11-23 20:37:53,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:37:53,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [748244562] [2023-11-23 20:37:53,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:37:53,834 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 20:37:53,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f54ea6-2a90-4ac2-a13d-582ba43c71ec/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:37:53,840 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f54ea6-2a90-4ac2-a13d-582ba43c71ec/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 20:37:53,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f54ea6-2a90-4ac2-a13d-582ba43c71ec/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-23 20:37:54,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:37:54,908 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 20:37:54,929 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:37:55,026 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked. [2023-11-23 20:37:55,027 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 20:37:55,028 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 20:37:55,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [748244562] [2023-11-23 20:37:55,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [748244562] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:37:55,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:37:55,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 20:37:55,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598666868] [2023-11-23 20:37:55,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:37:55,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 20:37:55,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 20:37:55,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 20:37:55,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 20:37:55,105 INFO L87 Difference]: Start difference. First operand has 48 states, 25 states have (on average 1.32) internal successors, (33), 26 states have internal predecessors, (33), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-23 20:37:57,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 20:37:57,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:37:57,380 INFO L93 Difference]: Finished difference Result 93 states and 164 transitions. [2023-11-23 20:37:57,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 20:37:57,434 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) Word has length 120 [2023-11-23 20:37:57,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:37:57,443 INFO L225 Difference]: With dead ends: 93 [2023-11-23 20:37:57,443 INFO L226 Difference]: Without dead ends: 46 [2023-11-23 20:37:57,448 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 20:37:57,452 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-23 20:37:57,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 65 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2023-11-23 20:37:57,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2023-11-23 20:37:57,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2023-11-23 20:37:57,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 24 states have internal predecessors, (28), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-23 20:37:57,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 68 transitions. [2023-11-23 20:37:57,528 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 68 transitions. Word has length 120 [2023-11-23 20:37:57,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:37:57,528 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 68 transitions. [2023-11-23 20:37:57,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-23 20:37:57,529 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 68 transitions. [2023-11-23 20:37:57,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-11-23 20:37:57,534 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:37:57,534 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:37:57,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f54ea6-2a90-4ac2-a13d-582ba43c71ec/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-23 20:37:57,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f54ea6-2a90-4ac2-a13d-582ba43c71ec/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 20:37:57,753 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:37:57,754 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:37:57,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1179462752, now seen corresponding path program 1 times [2023-11-23 20:37:57,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:37:57,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1478163233] [2023-11-23 20:37:57,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:37:57,756 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 20:37:57,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f54ea6-2a90-4ac2-a13d-582ba43c71ec/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:37:57,760 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f54ea6-2a90-4ac2-a13d-582ba43c71ec/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 20:37:57,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f54ea6-2a90-4ac2-a13d-582ba43c71ec/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-23 20:37:58,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:37:58,476 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-23 20:37:58,488 INFO L285 TraceCheckSpWp]: Computing forward predicates...