./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-40.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb4bb07-898b-47f2-8aeb-92420f53ae6e/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb4bb07-898b-47f2-8aeb-92420f53ae6e/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb4bb07-898b-47f2-8aeb-92420f53ae6e/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb4bb07-898b-47f2-8aeb-92420f53ae6e/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-40.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb4bb07-898b-47f2-8aeb-92420f53ae6e/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb4bb07-898b-47f2-8aeb-92420f53ae6e/bin/utaipan-verify-nQ1chXbOIh --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 77fbc3ec0aa1e3a17f6dd73b5c59e0107945f53ef89e3fc3ca652830ca5bf043 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 14:41:17,409 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 14:41:17,477 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb4bb07-898b-47f2-8aeb-92420f53ae6e/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 14:41:17,481 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 14:41:17,482 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 14:41:17,507 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 14:41:17,508 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 14:41:17,508 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 14:41:17,509 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 14:41:17,509 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 14:41:17,510 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 14:41:17,510 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 14:41:17,511 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 14:41:17,511 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 14:41:17,512 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 14:41:17,512 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 14:41:17,513 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 14:41:17,513 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 14:41:17,514 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 14:41:17,514 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 14:41:17,515 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 14:41:17,520 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 14:41:17,521 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 14:41:17,521 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 14:41:17,522 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 14:41:17,522 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 14:41:17,522 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 14:41:17,523 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 14:41:17,523 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 14:41:17,524 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 14:41:17,524 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 14:41:17,524 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 14:41:17,524 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 14:41:17,525 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 14:41:17,525 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 14:41:17,525 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 14:41:17,525 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 14:41:17,525 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 14:41:17,526 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 14:41:17,526 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 14:41:17,526 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 14:41:17,526 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 14:41:17,527 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 14:41:17,527 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 14:41:17,527 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 14:41:17,527 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 14:41:17,527 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 14:41:17,527 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_9fb4bb07-898b-47f2-8aeb-92420f53ae6e/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb4bb07-898b-47f2-8aeb-92420f53ae6e/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 77fbc3ec0aa1e3a17f6dd73b5c59e0107945f53ef89e3fc3ca652830ca5bf043 [2023-12-02 14:41:17,760 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 14:41:17,785 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 14:41:17,788 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 14:41:17,790 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 14:41:17,790 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 14:41:17,791 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb4bb07-898b-47f2-8aeb-92420f53ae6e/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-40.i [2023-12-02 14:41:20,564 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 14:41:20,743 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 14:41:20,744 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb4bb07-898b-47f2-8aeb-92420f53ae6e/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-40.i [2023-12-02 14:41:20,754 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb4bb07-898b-47f2-8aeb-92420f53ae6e/bin/utaipan-verify-nQ1chXbOIh/data/f87b97f13/b59a0c6270c14fcab8509e6410c5e149/FLAGefddf5e0e [2023-12-02 14:41:20,767 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb4bb07-898b-47f2-8aeb-92420f53ae6e/bin/utaipan-verify-nQ1chXbOIh/data/f87b97f13/b59a0c6270c14fcab8509e6410c5e149 [2023-12-02 14:41:20,770 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 14:41:20,771 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 14:41:20,772 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 14:41:20,773 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 14:41:20,777 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 14:41:20,777 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:41:20" (1/1) ... [2023-12-02 14:41:20,779 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@96592fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:41:20, skipping insertion in model container [2023-12-02 14:41:20,779 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:41:20" (1/1) ... [2023-12-02 14:41:20,811 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 14:41:20,927 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_9fb4bb07-898b-47f2-8aeb-92420f53ae6e/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-40.i[917,930] [2023-12-02 14:41:20,986 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 14:41:20,997 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 14:41:21,007 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_9fb4bb07-898b-47f2-8aeb-92420f53ae6e/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-40.i[917,930] [2023-12-02 14:41:21,040 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 14:41:21,057 INFO L206 MainTranslator]: Completed translation [2023-12-02 14:41:21,057 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:41:21 WrapperNode [2023-12-02 14:41:21,057 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 14:41:21,058 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 14:41:21,058 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 14:41:21,059 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 14:41:21,064 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:41:21" (1/1) ... [2023-12-02 14:41:21,075 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:41:21" (1/1) ... [2023-12-02 14:41:21,114 INFO L138 Inliner]: procedures = 26, calls = 43, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 167 [2023-12-02 14:41:21,114 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 14:41:21,115 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 14:41:21,115 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 14:41:21,116 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 14:41:21,124 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:41:21" (1/1) ... [2023-12-02 14:41:21,124 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:41:21" (1/1) ... [2023-12-02 14:41:21,128 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:41:21" (1/1) ... [2023-12-02 14:41:21,128 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:41:21" (1/1) ... [2023-12-02 14:41:21,141 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:41:21" (1/1) ... [2023-12-02 14:41:21,145 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:41:21" (1/1) ... [2023-12-02 14:41:21,149 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:41:21" (1/1) ... [2023-12-02 14:41:21,151 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:41:21" (1/1) ... [2023-12-02 14:41:21,158 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 14:41:21,159 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 14:41:21,159 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 14:41:21,159 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 14:41:21,160 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:41:21" (1/1) ... [2023-12-02 14:41:21,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 14:41:21,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb4bb07-898b-47f2-8aeb-92420f53ae6e/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:41:21,193 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb4bb07-898b-47f2-8aeb-92420f53ae6e/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 14:41:21,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb4bb07-898b-47f2-8aeb-92420f53ae6e/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 14:41:21,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 14:41:21,225 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 14:41:21,225 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 14:41:21,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 14:41:21,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 14:41:21,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 14:41:21,306 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 14:41:21,308 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 14:41:21,622 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 14:41:21,794 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 14:41:21,795 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 14:41:21,796 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:41:21 BoogieIcfgContainer [2023-12-02 14:41:21,796 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 14:41:21,800 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 14:41:21,800 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 14:41:21,803 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 14:41:21,803 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:41:20" (1/3) ... [2023-12-02 14:41:21,804 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b882b59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:41:21, skipping insertion in model container [2023-12-02 14:41:21,804 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:41:21" (2/3) ... [2023-12-02 14:41:21,804 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b882b59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:41:21, skipping insertion in model container [2023-12-02 14:41:21,805 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:41:21" (3/3) ... [2023-12-02 14:41:21,808 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_steplocals_file-40.i [2023-12-02 14:41:21,828 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 14:41:21,828 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 14:41:21,877 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 14:41:21,882 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;@3db6beff, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 14:41:21,882 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 14:41:21,886 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 23 states have internal predecessors, (25), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-02 14:41:21,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-02 14:41:21,897 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:41:21,897 INFO L195 NwaCegarLoop]: trace histogram [30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:41:21,898 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:41:21,902 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:41:21,902 INFO L85 PathProgramCache]: Analyzing trace with hash 965010273, now seen corresponding path program 1 times [2023-12-02 14:41:21,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:41:21,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744629657] [2023-12-02 14:41:21,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:41:21,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:41:22,085 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 14:41:22,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1898810968] [2023-12-02 14:41:22,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:41:22,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:41:22,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb4bb07-898b-47f2-8aeb-92420f53ae6e/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:41:22,088 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb4bb07-898b-47f2-8aeb-92420f53ae6e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:41:22,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb4bb07-898b-47f2-8aeb-92420f53ae6e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 14:41:22,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 14:41:22,265 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 14:41:22,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 14:41:22,424 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 14:41:22,426 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 14:41:22,427 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 14:41:22,441 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb4bb07-898b-47f2-8aeb-92420f53ae6e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 14:41:22,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb4bb07-898b-47f2-8aeb-92420f53ae6e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-02 14:41:22,633 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 14:41:22,636 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 14:41:22,726 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 02:41:22 BoogieIcfgContainer [2023-12-02 14:41:22,726 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 14:41:22,727 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 14:41:22,727 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 14:41:22,727 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 14:41:22,728 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:41:21" (3/4) ... [2023-12-02 14:41:22,730 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 14:41:22,731 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 14:41:22,732 INFO L158 Benchmark]: Toolchain (without parser) took 1960.50ms. Allocated memory was 148.9MB in the beginning and 186.6MB in the end (delta: 37.7MB). Free memory was 109.8MB in the beginning and 105.5MB in the end (delta: 4.3MB). Peak memory consumption was 43.0MB. Max. memory is 16.1GB. [2023-12-02 14:41:22,733 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 148.9MB. Free memory is still 118.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 14:41:22,733 INFO L158 Benchmark]: CACSL2BoogieTranslator took 285.41ms. Allocated memory is still 148.9MB. Free memory was 109.8MB in the beginning and 95.6MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-12-02 14:41:22,734 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.31ms. Allocated memory is still 148.9MB. Free memory was 95.6MB in the beginning and 91.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 14:41:22,735 INFO L158 Benchmark]: Boogie Preprocessor took 42.55ms. Allocated memory is still 148.9MB. Free memory was 91.4MB in the beginning and 89.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 14:41:22,736 INFO L158 Benchmark]: RCFGBuilder took 637.96ms. Allocated memory was 148.9MB in the beginning and 186.6MB in the end (delta: 37.7MB). Free memory was 89.3MB in the beginning and 153.7MB in the end (delta: -64.4MB). Peak memory consumption was 47.2MB. Max. memory is 16.1GB. [2023-12-02 14:41:22,736 INFO L158 Benchmark]: TraceAbstraction took 926.71ms. Allocated memory is still 186.6MB. Free memory was 152.7MB in the beginning and 105.5MB in the end (delta: 47.2MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2023-12-02 14:41:22,737 INFO L158 Benchmark]: Witness Printer took 4.23ms. Allocated memory is still 186.6MB. Free memory is still 105.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 14:41:22,740 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 148.9MB. Free memory is still 118.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 285.41ms. Allocated memory is still 148.9MB. Free memory was 109.8MB in the beginning and 95.6MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.31ms. Allocated memory is still 148.9MB. Free memory was 95.6MB in the beginning and 91.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.55ms. Allocated memory is still 148.9MB. Free memory was 91.4MB in the beginning and 89.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 637.96ms. Allocated memory was 148.9MB in the beginning and 186.6MB in the end (delta: 37.7MB). Free memory was 89.3MB in the beginning and 153.7MB in the end (delta: -64.4MB). Peak memory consumption was 47.2MB. Max. memory is 16.1GB. * TraceAbstraction took 926.71ms. Allocated memory is still 186.6MB. Free memory was 152.7MB in the beginning and 105.5MB in the end (delta: 47.2MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * Witness Printer took 4.23ms. Allocated memory is still 186.6MB. Free memory is still 105.5MB. 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 61, overapproximation of someBinaryFLOATComparisonOperation at line 140, overapproximation of someUnaryDOUBLEoperation at line 45. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 128; [L23] signed char var_1_2 = 2; [L24] signed char var_1_3 = -100; [L25] signed short int var_1_4 = -200; [L26] signed long int var_1_5 = -2; [L27] unsigned short int var_1_6 = 32; [L28] unsigned short int var_1_7 = 8; [L29] unsigned short int var_1_8 = 5; [L30] unsigned char var_1_9 = 1; [L31] unsigned char var_1_10 = 0; [L32] unsigned char var_1_11 = 0; [L33] unsigned char var_1_12 = 16; [L34] double var_1_13 = 4.8; [L35] double var_1_14 = 8.4; [L36] unsigned char var_1_15 = 50; [L37] unsigned short int var_1_16 = 1; [L38] float var_1_17 = 25.4; [L39] signed long int var_1_19 = 2; [L40] float var_1_20 = 1.6; [L41] unsigned short int var_1_21 = 0; [L42] unsigned short int var_1_22 = 8; [L43] unsigned short int var_1_23 = 16; [L44] float var_1_24 = 128.5; [L45] double var_1_25 = -0.5; [L46] signed long int var_1_26 = 4; [L144] isInitial = 1 [L145] FCALL initially() [L146] COND TRUE 1 [L147] FCALL updateLastVariables() [L148] CALL updateVariables() [L90] var_1_2 = __VERIFIER_nondet_char() [L91] CALL assume_abort_if_not(var_1_2 >= -128) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_13=24/5, var_1_14=42/5, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_19=2, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_22=8, var_1_23=16, var_1_24=257/2, var_1_26=4, var_1_2=-1, var_1_3=-100, var_1_4=-200, var_1_5=-2, var_1_6=32, var_1_7=8, var_1_8=5, var_1_9=1] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not(var_1_2 >= -128) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_13=24/5, var_1_14=42/5, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_19=2, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_22=8, var_1_23=16, var_1_24=257/2, var_1_26=4, var_1_2=-1, var_1_3=-100, var_1_4=-200, var_1_5=-2, var_1_6=32, var_1_7=8, var_1_8=5, var_1_9=1] [L92] CALL assume_abort_if_not(var_1_2 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_13=24/5, var_1_14=42/5, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_19=2, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_22=8, var_1_23=16, var_1_24=257/2, var_1_26=4, var_1_2=-1, var_1_3=-100, var_1_4=-200, var_1_5=-2, var_1_6=32, var_1_7=8, var_1_8=5, var_1_9=1] [L20] COND FALSE !(!cond) [L92] RET assume_abort_if_not(var_1_2 <= 127) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_13=24/5, var_1_14=42/5, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_19=2, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_22=8, var_1_23=16, var_1_24=257/2, var_1_26=4, var_1_2=-1, var_1_3=-100, var_1_4=-200, var_1_5=-2, var_1_6=32, var_1_7=8, var_1_8=5, var_1_9=1] [L93] var_1_3 = __VERIFIER_nondet_char() [L94] CALL assume_abort_if_not(var_1_3 >= -128) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_13=24/5, var_1_14=42/5, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_19=2, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_22=8, var_1_23=16, var_1_24=257/2, var_1_26=4, var_1_2=-1, var_1_3=-2, var_1_4=-200, var_1_5=-2, var_1_6=32, var_1_7=8, var_1_8=5, var_1_9=1] [L20] COND FALSE !(!cond) [L94] RET assume_abort_if_not(var_1_3 >= -128) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_13=24/5, var_1_14=42/5, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_19=2, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_22=8, var_1_23=16, var_1_24=257/2, var_1_26=4, var_1_2=-1, var_1_3=-2, var_1_4=-200, var_1_5=-2, var_1_6=32, var_1_7=8, var_1_8=5, var_1_9=1] [L95] CALL assume_abort_if_not(var_1_3 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_13=24/5, var_1_14=42/5, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_19=2, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_22=8, var_1_23=16, var_1_24=257/2, var_1_26=4, var_1_2=-1, var_1_3=-2, var_1_4=-200, var_1_5=-2, var_1_6=32, var_1_7=8, var_1_8=5, var_1_9=1] [L20] COND FALSE !(!cond) [L95] RET assume_abort_if_not(var_1_3 <= 127) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_13=24/5, var_1_14=42/5, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_19=2, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_22=8, var_1_23=16, var_1_24=257/2, var_1_26=4, var_1_2=-1, var_1_3=-2, var_1_4=-200, var_1_5=-2, var_1_6=32, var_1_7=8, var_1_8=5, var_1_9=1] [L96] var_1_4 = __VERIFIER_nondet_short() [L97] CALL assume_abort_if_not(var_1_4 >= -32768) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_13=24/5, var_1_14=42/5, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_19=2, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_22=8, var_1_23=16, var_1_24=257/2, var_1_26=4, var_1_2=-1, var_1_3=-2, var_1_4=1, var_1_5=-2, var_1_6=32, var_1_7=8, var_1_8=5, var_1_9=1] [L20] COND FALSE !(!cond) [L97] RET assume_abort_if_not(var_1_4 >= -32768) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_13=24/5, var_1_14=42/5, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_19=2, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_22=8, var_1_23=16, var_1_24=257/2, var_1_26=4, var_1_2=-1, var_1_3=-2, var_1_4=1, var_1_5=-2, var_1_6=32, var_1_7=8, var_1_8=5, var_1_9=1] [L98] CALL assume_abort_if_not(var_1_4 <= 32767) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_13=24/5, var_1_14=42/5, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_19=2, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_22=8, var_1_23=16, var_1_24=257/2, var_1_26=4, var_1_2=-1, var_1_3=-2, var_1_4=1, var_1_5=-2, var_1_6=32, var_1_7=8, var_1_8=5, var_1_9=1] [L20] COND FALSE !(!cond) [L98] RET assume_abort_if_not(var_1_4 <= 32767) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_13=24/5, var_1_14=42/5, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_19=2, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_22=8, var_1_23=16, var_1_24=257/2, var_1_26=4, var_1_2=-1, var_1_3=-2, var_1_4=1, var_1_5=-2, var_1_6=32, var_1_7=8, var_1_8=5, var_1_9=1] [L99] CALL assume_abort_if_not(var_1_4 != 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_13=24/5, var_1_14=42/5, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_19=2, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_22=8, var_1_23=16, var_1_24=257/2, var_1_26=4, var_1_2=-1, var_1_3=-2, var_1_4=1, var_1_5=-2, var_1_6=32, var_1_7=8, var_1_8=5, var_1_9=1] [L20] COND FALSE !(!cond) [L99] RET assume_abort_if_not(var_1_4 != 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_13=24/5, var_1_14=42/5, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_19=2, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_22=8, var_1_23=16, var_1_24=257/2, var_1_26=4, var_1_2=-1, var_1_3=-2, var_1_4=1, var_1_5=-2, var_1_6=32, var_1_7=8, var_1_8=5, var_1_9=1] [L100] var_1_5 = __VERIFIER_nondet_long() [L101] CALL assume_abort_if_not(var_1_5 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_13=24/5, var_1_14=42/5, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_19=2, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_22=8, var_1_23=16, var_1_24=257/2, var_1_26=4, var_1_2=-1, var_1_3=-2, var_1_4=1, var_1_5=1, var_1_6=32, var_1_7=8, var_1_8=5, var_1_9=1] [L20] COND FALSE !(!cond) [L101] RET assume_abort_if_not(var_1_5 >= -2147483648) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_13=24/5, var_1_14=42/5, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_19=2, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_22=8, var_1_23=16, var_1_24=257/2, var_1_26=4, var_1_2=-1, var_1_3=-2, var_1_4=1, var_1_5=1, var_1_6=32, var_1_7=8, var_1_8=5, var_1_9=1] [L102] CALL assume_abort_if_not(var_1_5 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_13=24/5, var_1_14=42/5, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_19=2, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_22=8, var_1_23=16, var_1_24=257/2, var_1_26=4, var_1_2=-1, var_1_3=-2, var_1_4=1, var_1_5=1, var_1_6=32, var_1_7=8, var_1_8=5, var_1_9=1] [L20] COND FALSE !(!cond) [L102] RET assume_abort_if_not(var_1_5 <= 2147483647) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_13=24/5, var_1_14=42/5, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_19=2, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_22=8, var_1_23=16, var_1_24=257/2, var_1_26=4, var_1_2=-1, var_1_3=-2, var_1_4=1, var_1_5=1, var_1_6=32, var_1_7=8, var_1_8=5, var_1_9=1] [L103] var_1_6 = __VERIFIER_nondet_ushort() [L104] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_13=24/5, var_1_14=42/5, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_19=2, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_22=8, var_1_23=16, var_1_24=257/2, var_1_26=4, var_1_2=-1, var_1_3=-2, var_1_4=1, var_1_5=1, var_1_7=8, var_1_8=5, var_1_9=1] [L20] COND FALSE !(!cond) [L104] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_13=24/5, var_1_14=42/5, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_19=2, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_22=8, var_1_23=16, var_1_24=257/2, var_1_26=4, var_1_2=-1, var_1_3=-2, var_1_4=1, var_1_5=1, var_1_7=8, var_1_8=5, var_1_9=1] [L105] CALL assume_abort_if_not(var_1_6 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_13=24/5, var_1_14=42/5, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_19=2, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_22=8, var_1_23=16, var_1_24=257/2, var_1_26=4, var_1_2=-1, var_1_3=-2, var_1_4=1, var_1_5=1, var_1_6=65534, var_1_7=8, var_1_8=5, var_1_9=1] [L20] COND FALSE !(!cond) [L105] RET assume_abort_if_not(var_1_6 <= 65534) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_13=24/5, var_1_14=42/5, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_19=2, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_22=8, var_1_23=16, var_1_24=257/2, var_1_26=4, var_1_2=-1, var_1_3=-2, var_1_4=1, var_1_5=1, var_1_6=65534, var_1_7=8, var_1_8=5, var_1_9=1] [L106] var_1_7 = __VERIFIER_nondet_ushort() [L107] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_13=24/5, var_1_14=42/5, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_19=2, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_22=8, var_1_23=16, var_1_24=257/2, var_1_26=4, var_1_2=-1, var_1_3=-2, var_1_4=1, var_1_5=1, var_1_6=65534, var_1_8=5, var_1_9=1] [L20] COND FALSE !(!cond) [L107] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_13=24/5, var_1_14=42/5, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_19=2, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_22=8, var_1_23=16, var_1_24=257/2, var_1_26=4, var_1_2=-1, var_1_3=-2, var_1_4=1, var_1_5=1, var_1_6=65534, var_1_8=5, var_1_9=1] [L108] CALL assume_abort_if_not(var_1_7 <= 32767) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_13=24/5, var_1_14=42/5, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_19=2, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_22=8, var_1_23=16, var_1_24=257/2, var_1_26=4, var_1_2=-1, var_1_3=-2, var_1_4=1, var_1_5=1, var_1_6=65534, var_1_7=32767, var_1_8=5, var_1_9=1] [L20] COND FALSE !(!cond) [L108] RET assume_abort_if_not(var_1_7 <= 32767) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_13=24/5, var_1_14=42/5, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_19=2, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_22=8, var_1_23=16, var_1_24=257/2, var_1_26=4, var_1_2=-1, var_1_3=-2, var_1_4=1, var_1_5=1, var_1_6=65534, var_1_7=32767, var_1_8=5, var_1_9=1] [L109] var_1_8 = __VERIFIER_nondet_ushort() [L110] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_13=24/5, var_1_14=42/5, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_19=2, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_22=8, var_1_23=16, var_1_24=257/2, var_1_26=4, var_1_2=-1, var_1_3=-2, var_1_4=1, var_1_5=1, var_1_6=65534, var_1_7=32767, var_1_9=1] [L20] COND FALSE !(!cond) [L110] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_13=24/5, var_1_14=42/5, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_19=2, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_22=8, var_1_23=16, var_1_24=257/2, var_1_26=4, var_1_2=-1, var_1_3=-2, var_1_4=1, var_1_5=1, var_1_6=65534, var_1_7=32767, var_1_9=1] [L111] CALL assume_abort_if_not(var_1_8 <= 32767) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_13=24/5, var_1_14=42/5, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_19=2, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_22=8, var_1_23=16, var_1_24=257/2, var_1_26=4, var_1_2=-1, var_1_3=-2, var_1_4=1, var_1_5=1, var_1_6=65534, var_1_7=32767, var_1_8=32767, var_1_9=1] [L20] COND FALSE !(!cond) [L111] RET assume_abort_if_not(var_1_8 <= 32767) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_13=24/5, var_1_14=42/5, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_19=2, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_22=8, var_1_23=16, var_1_24=257/2, var_1_26=4, var_1_2=-1, var_1_3=-2, var_1_4=1, var_1_5=1, var_1_6=65534, var_1_7=32767, var_1_8=32767, var_1_9=1] [L112] var_1_10 = __VERIFIER_nondet_uchar() [L113] CALL assume_abort_if_not(var_1_10 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_11=0, var_1_12=16, var_1_13=24/5, var_1_14=42/5, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_19=2, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_22=8, var_1_23=16, var_1_24=257/2, var_1_26=4, var_1_2=-1, var_1_3=-2, var_1_4=1, var_1_5=1, var_1_6=65534, var_1_7=32767, var_1_8=32767, var_1_9=1] [L20] COND FALSE !(!cond) [L113] RET assume_abort_if_not(var_1_10 >= 0) VAL [isInitial=1, var_1_11=0, var_1_12=16, var_1_13=24/5, var_1_14=42/5, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_19=2, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_22=8, var_1_23=16, var_1_24=257/2, var_1_26=4, var_1_2=-1, var_1_3=-2, var_1_4=1, var_1_5=1, var_1_6=65534, var_1_7=32767, var_1_8=32767, var_1_9=1] [L114] CALL assume_abort_if_not(var_1_10 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_13=24/5, var_1_14=42/5, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_19=2, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_22=8, var_1_23=16, var_1_24=257/2, var_1_26=4, var_1_2=-1, var_1_3=-2, var_1_4=1, var_1_5=1, var_1_6=65534, var_1_7=32767, var_1_8=32767, var_1_9=1] [L20] COND FALSE !(!cond) [L114] RET assume_abort_if_not(var_1_10 <= 1) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_13=24/5, var_1_14=42/5, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_19=2, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_22=8, var_1_23=16, var_1_24=257/2, var_1_26=4, var_1_2=-1, var_1_3=-2, var_1_4=1, var_1_5=1, var_1_6=65534, var_1_7=32767, var_1_8=32767, var_1_9=1] [L115] var_1_11 = __VERIFIER_nondet_uchar() [L116] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_12=16, var_1_13=24/5, var_1_14=42/5, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_19=2, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_22=8, var_1_23=16, var_1_24=257/2, var_1_26=4, var_1_2=-1, var_1_3=-2, var_1_4=1, var_1_5=1, var_1_6=65534, var_1_7=32767, var_1_8=32767, var_1_9=1] [L20] COND FALSE !(!cond) [L116] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, var_1_10=0, var_1_12=16, var_1_13=24/5, var_1_14=42/5, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_19=2, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_22=8, var_1_23=16, var_1_24=257/2, var_1_26=4, var_1_2=-1, var_1_3=-2, var_1_4=1, var_1_5=1, var_1_6=65534, var_1_7=32767, var_1_8=32767, var_1_9=1] [L117] CALL assume_abort_if_not(var_1_11 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_13=24/5, var_1_14=42/5, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_19=2, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_22=8, var_1_23=16, var_1_24=257/2, var_1_26=4, var_1_2=-1, var_1_3=-2, var_1_4=1, var_1_5=1, var_1_6=65534, var_1_7=32767, var_1_8=32767, var_1_9=1] [L20] COND FALSE !(!cond) [L117] RET assume_abort_if_not(var_1_11 <= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_13=24/5, var_1_14=42/5, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_19=2, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_22=8, var_1_23=16, var_1_24=257/2, var_1_26=4, var_1_2=-1, var_1_3=-2, var_1_4=1, var_1_5=1, var_1_6=65534, var_1_7=32767, var_1_8=32767, var_1_9=1] [L118] var_1_13 = __VERIFIER_nondet_double() [L119] CALL assume_abort_if_not((var_1_13 >= -922337.2036854776000e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854776000e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_14=42/5, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_19=2, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_22=8, var_1_23=16, var_1_24=257/2, var_1_26=4, var_1_2=-1, var_1_3=-2, var_1_4=1, var_1_5=1, var_1_6=65534, var_1_7=32767, var_1_8=32767, var_1_9=1] [L20] COND FALSE !(!cond) [L119] RET assume_abort_if_not((var_1_13 >= -922337.2036854776000e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854776000e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_14=42/5, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_19=2, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_22=8, var_1_23=16, var_1_24=257/2, var_1_26=4, var_1_2=-1, var_1_3=-2, var_1_4=1, var_1_5=1, var_1_6=65534, var_1_7=32767, var_1_8=32767, var_1_9=1] [L120] var_1_14 = __VERIFIER_nondet_double() [L121] CALL assume_abort_if_not((var_1_14 >= -922337.2036854776000e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854776000e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_19=2, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_22=8, var_1_23=16, var_1_24=257/2, var_1_26=4, var_1_2=-1, var_1_3=-2, var_1_4=1, var_1_5=1, var_1_6=65534, var_1_7=32767, var_1_8=32767, var_1_9=1] [L20] COND FALSE !(!cond) [L121] RET assume_abort_if_not((var_1_14 >= -922337.2036854776000e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854776000e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_19=2, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_22=8, var_1_23=16, var_1_24=257/2, var_1_26=4, var_1_2=-1, var_1_3=-2, var_1_4=1, var_1_5=1, var_1_6=65534, var_1_7=32767, var_1_8=32767, var_1_9=1] [L122] var_1_15 = __VERIFIER_nondet_uchar() [L123] CALL assume_abort_if_not(var_1_15 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_16=1, var_1_17=127/5, var_1_19=2, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_22=8, var_1_23=16, var_1_24=257/2, var_1_26=4, var_1_2=-1, var_1_3=-2, var_1_4=1, var_1_5=1, var_1_6=65534, var_1_7=32767, var_1_8=32767, var_1_9=1] [L20] COND FALSE !(!cond) [L123] RET assume_abort_if_not(var_1_15 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_16=1, var_1_17=127/5, var_1_19=2, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_22=8, var_1_23=16, var_1_24=257/2, var_1_26=4, var_1_2=-1, var_1_3=-2, var_1_4=1, var_1_5=1, var_1_6=65534, var_1_7=32767, var_1_8=32767, var_1_9=1] [L124] CALL assume_abort_if_not(var_1_15 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=0, var_1_16=1, var_1_17=127/5, var_1_19=2, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_22=8, var_1_23=16, var_1_24=257/2, var_1_26=4, var_1_2=-1, var_1_3=-2, var_1_4=1, var_1_5=1, var_1_6=65534, var_1_7=32767, var_1_8=32767, var_1_9=1] [L20] COND FALSE !(!cond) [L124] RET assume_abort_if_not(var_1_15 <= 254) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=0, var_1_16=1, var_1_17=127/5, var_1_19=2, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_22=8, var_1_23=16, var_1_24=257/2, var_1_26=4, var_1_2=-1, var_1_3=-2, var_1_4=1, var_1_5=1, var_1_6=65534, var_1_7=32767, var_1_8=32767, var_1_9=1] [L125] var_1_19 = __VERIFIER_nondet_long() [L126] CALL assume_abort_if_not(var_1_19 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=0, var_1_16=1, var_1_17=127/5, var_1_19=0, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_22=8, var_1_23=16, var_1_24=257/2, var_1_26=4, var_1_2=-1, var_1_3=-2, var_1_4=1, var_1_5=1, var_1_6=65534, var_1_7=32767, var_1_8=32767, var_1_9=1] [L20] COND FALSE !(!cond) [L126] RET assume_abort_if_not(var_1_19 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=0, var_1_16=1, var_1_17=127/5, var_1_19=0, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_22=8, var_1_23=16, var_1_24=257/2, var_1_26=4, var_1_2=-1, var_1_3=-2, var_1_4=1, var_1_5=1, var_1_6=65534, var_1_7=32767, var_1_8=32767, var_1_9=1] [L127] CALL assume_abort_if_not(var_1_19 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=0, var_1_16=1, var_1_17=127/5, var_1_19=0, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_22=8, var_1_23=16, var_1_24=257/2, var_1_26=4, var_1_2=-1, var_1_3=-2, var_1_4=1, var_1_5=1, var_1_6=65534, var_1_7=32767, var_1_8=32767, var_1_9=1] [L20] COND FALSE !(!cond) [L127] RET assume_abort_if_not(var_1_19 <= 2147483647) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=0, var_1_16=1, var_1_17=127/5, var_1_19=0, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_22=8, var_1_23=16, var_1_24=257/2, var_1_26=4, var_1_2=-1, var_1_3=-2, var_1_4=1, var_1_5=1, var_1_6=65534, var_1_7=32767, var_1_8=32767, var_1_9=1] [L128] var_1_20 = __VERIFIER_nondet_float() [L129] CALL assume_abort_if_not((var_1_20 >= -922337.2036854765600e+13F && var_1_20 <= -1.0e-20F) || (var_1_20 <= 9223372.036854765600e+12F && var_1_20 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=0, var_1_16=1, var_1_17=127/5, var_1_19=0, var_1_1=128, var_1_21=0, var_1_22=8, var_1_23=16, var_1_24=257/2, var_1_26=4, var_1_2=-1, var_1_3=-2, var_1_4=1, var_1_5=1, var_1_6=65534, var_1_7=32767, var_1_8=32767, var_1_9=1] [L20] COND FALSE !(!cond) [L129] RET assume_abort_if_not((var_1_20 >= -922337.2036854765600e+13F && var_1_20 <= -1.0e-20F) || (var_1_20 <= 9223372.036854765600e+12F && var_1_20 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=0, var_1_16=1, var_1_17=127/5, var_1_19=0, var_1_1=128, var_1_21=0, var_1_22=8, var_1_23=16, var_1_24=257/2, var_1_26=4, var_1_2=-1, var_1_3=-2, var_1_4=1, var_1_5=1, var_1_6=65534, var_1_7=32767, var_1_8=32767, var_1_9=1] [L130] var_1_22 = __VERIFIER_nondet_ushort() [L131] CALL assume_abort_if_not(var_1_22 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=0, var_1_16=1, var_1_17=127/5, var_1_19=0, var_1_1=128, var_1_21=0, var_1_23=16, var_1_24=257/2, var_1_26=4, var_1_2=-1, var_1_3=-2, var_1_4=1, var_1_5=1, var_1_6=65534, var_1_7=32767, var_1_8=32767, var_1_9=1] [L20] COND FALSE !(!cond) [L131] RET assume_abort_if_not(var_1_22 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=0, var_1_16=1, var_1_17=127/5, var_1_19=0, var_1_1=128, var_1_21=0, var_1_23=16, var_1_24=257/2, var_1_26=4, var_1_2=-1, var_1_3=-2, var_1_4=1, var_1_5=1, var_1_6=65534, var_1_7=32767, var_1_8=32767, var_1_9=1] [L132] CALL assume_abort_if_not(var_1_22 <= 16383) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=0, var_1_16=1, var_1_17=127/5, var_1_19=0, var_1_1=128, var_1_21=0, var_1_22=0, var_1_23=16, var_1_24=257/2, var_1_26=4, var_1_2=-1, var_1_3=-2, var_1_4=1, var_1_5=1, var_1_6=65534, var_1_7=32767, var_1_8=32767, var_1_9=1] [L20] COND FALSE !(!cond) [L132] RET assume_abort_if_not(var_1_22 <= 16383) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=0, var_1_16=1, var_1_17=127/5, var_1_19=0, var_1_1=128, var_1_21=0, var_1_22=0, var_1_23=16, var_1_24=257/2, var_1_26=4, var_1_2=-1, var_1_3=-2, var_1_4=1, var_1_5=1, var_1_6=65534, var_1_7=32767, var_1_8=32767, var_1_9=1] [L133] var_1_23 = __VERIFIER_nondet_ushort() [L134] CALL assume_abort_if_not(var_1_23 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=0, var_1_16=1, var_1_17=127/5, var_1_19=0, var_1_1=128, var_1_21=0, var_1_22=0, var_1_24=257/2, var_1_26=4, var_1_2=-1, var_1_3=-2, var_1_4=1, var_1_5=1, var_1_6=65534, var_1_7=32767, var_1_8=32767, var_1_9=1] [L20] COND FALSE !(!cond) [L134] RET assume_abort_if_not(var_1_23 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=0, var_1_16=1, var_1_17=127/5, var_1_19=0, var_1_1=128, var_1_21=0, var_1_22=0, var_1_24=257/2, var_1_26=4, var_1_2=-1, var_1_3=-2, var_1_4=1, var_1_5=1, var_1_6=65534, var_1_7=32767, var_1_8=32767, var_1_9=1] [L135] CALL assume_abort_if_not(var_1_23 <= 16383) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=0, var_1_16=1, var_1_17=127/5, var_1_19=0, var_1_1=128, var_1_21=0, var_1_22=0, var_1_23=0, var_1_24=257/2, var_1_26=4, var_1_2=-1, var_1_3=-2, var_1_4=1, var_1_5=1, var_1_6=65534, var_1_7=32767, var_1_8=32767, var_1_9=1] [L20] COND FALSE !(!cond) [L135] RET assume_abort_if_not(var_1_23 <= 16383) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=0, var_1_16=1, var_1_17=127/5, var_1_19=0, var_1_1=128, var_1_21=0, var_1_22=0, var_1_23=0, var_1_24=257/2, var_1_26=4, var_1_2=-1, var_1_3=-2, var_1_4=1, var_1_5=1, var_1_6=65534, var_1_7=32767, var_1_8=32767, var_1_9=1] [L148] RET updateVariables() [L149] CALL step() [L50] signed long int stepLocal_0 = (var_1_3 * var_1_2) / var_1_4; [L51] COND FALSE !(stepLocal_0 <= var_1_5) [L54] var_1_1 = (var_1_7 + var_1_8) [L56] unsigned char stepLocal_1 = var_1_5 != var_1_4; [L57] COND FALSE !(stepLocal_1 || var_1_10) [L60] COND FALSE !((var_1_9 && var_1_11) && (50 > var_1_8)) [L67] var_1_12 = var_1_15 [L69] var_1_16 = (((((((((256) > (var_1_7)) ? (256) : (var_1_7))) + var_1_8)) < (var_1_15)) ? ((((((256) > (var_1_7)) ? (256) : (var_1_7))) + var_1_8)) : (var_1_15))) [L70] COND FALSE !((var_1_1 - ((((var_1_12) < 0 ) ? -(var_1_12) : (var_1_12)))) < (var_1_8 - var_1_19)) [L73] COND FALSE !((var_1_10 && var_1_11) && var_1_9) [L76] var_1_21 = ((23370 - var_1_15) + var_1_23) [L78] unsigned char stepLocal_2 = var_1_12; [L79] COND FALSE !(! (-4 < var_1_22)) [L82] COND FALSE !(-4 > stepLocal_2) [L86] var_1_25 = var_1_20 [L87] var_1_26 = var_1_6 [L149] RET step() [L150] CALL, EXPR property() [L140-L141] return (((((((((((var_1_3 * var_1_2) / var_1_4) <= var_1_5) ? (var_1_1 == ((unsigned short int) var_1_6)) : (var_1_1 == ((unsigned short int) (var_1_7 + var_1_8)))) && (((var_1_5 != var_1_4) || var_1_10) ? (var_1_9 == ((unsigned char) var_1_11)) : 1)) && (((var_1_9 && var_1_11) && (50 > var_1_8)) ? (((- var_1_13) < var_1_14) ? (var_1_10 ? (var_1_12 == ((unsigned char) 5)) : 1) : 1) : (var_1_12 == ((unsigned char) var_1_15)))) && (var_1_16 == ((unsigned short int) (((((((((256) > (var_1_7)) ? (256) : (var_1_7))) + var_1_8)) < (var_1_15)) ? ((((((256) > (var_1_7)) ? (256) : (var_1_7))) + var_1_8)) : (var_1_15)))))) && (((var_1_1 - ((((var_1_12) < 0 ) ? -(var_1_12) : (var_1_12)))) < (var_1_8 - var_1_19)) ? (var_1_17 == ((float) var_1_20)) : 1)) && (((var_1_10 && var_1_11) && var_1_9) ? (var_1_21 == ((unsigned short int) (var_1_12 + (var_1_15 + ((((var_1_22) > (var_1_23)) ? (var_1_22) : (var_1_23))))))) : (var_1_21 == ((unsigned short int) ((23370 - var_1_15) + var_1_23))))) && ((! (-4 < var_1_22)) ? (var_1_24 == ((float) var_1_20)) : ((-4 > var_1_12) ? (var_1_24 == ((float) 10.6f)) : 1))) && (var_1_25 == ((double) var_1_20))) && (var_1_26 == ((signed long int) var_1_6)) ; [L150] RET, EXPR property() [L150] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_15=0, var_1_16=0, var_1_17=127/5, var_1_19=0, var_1_1=65534, var_1_20=2, var_1_21=23370, var_1_22=0, var_1_23=0, var_1_24=257/2, var_1_25=2, var_1_26=65534, var_1_2=-1, var_1_3=-2, var_1_4=1, var_1_5=1, var_1_6=65534, var_1_7=32767, var_1_8=32767, var_1_9=1] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_15=0, var_1_16=0, var_1_17=127/5, var_1_19=0, var_1_1=65534, var_1_20=2, var_1_21=23370, var_1_22=0, var_1_23=0, var_1_24=257/2, var_1_25=2, var_1_26=65534, var_1_2=-1, var_1_3=-2, var_1_4=1, var_1_5=1, var_1_6=65534, var_1_7=32767, var_1_8=32767, var_1_9=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 55 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 30, 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=55occurred 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, 110 NumberOfCodeBlocks, 110 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 [2023-12-02 14:41:22,760 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb4bb07-898b-47f2-8aeb-92420f53ae6e/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb4bb07-898b-47f2-8aeb-92420f53ae6e/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb4bb07-898b-47f2-8aeb-92420f53ae6e/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb4bb07-898b-47f2-8aeb-92420f53ae6e/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb4bb07-898b-47f2-8aeb-92420f53ae6e/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-40.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb4bb07-898b-47f2-8aeb-92420f53ae6e/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb4bb07-898b-47f2-8aeb-92420f53ae6e/bin/utaipan-verify-nQ1chXbOIh --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 77fbc3ec0aa1e3a17f6dd73b5c59e0107945f53ef89e3fc3ca652830ca5bf043 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 14:41:24,708 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 14:41:24,785 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb4bb07-898b-47f2-8aeb-92420f53ae6e/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-12-02 14:41:24,791 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 14:41:24,791 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 14:41:24,818 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 14:41:24,819 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 14:41:24,819 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 14:41:24,820 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 14:41:24,821 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 14:41:24,821 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 14:41:24,822 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 14:41:24,822 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 14:41:24,823 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 14:41:24,823 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 14:41:24,824 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 14:41:24,825 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 14:41:24,825 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 14:41:24,826 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 14:41:24,827 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 14:41:24,827 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 14:41:24,828 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 14:41:24,828 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 14:41:24,829 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 14:41:24,829 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 14:41:24,830 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 14:41:24,830 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 14:41:24,830 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 14:41:24,831 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 14:41:24,831 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 14:41:24,832 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 14:41:24,832 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 14:41:24,832 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 14:41:24,833 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 14:41:24,833 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 14:41:24,833 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 14:41:24,833 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 14:41:24,834 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 14:41:24,834 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 14:41:24,834 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 14:41:24,834 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 14:41:24,835 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 14:41:24,835 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 14:41:24,835 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 14:41:24,835 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_9fb4bb07-898b-47f2-8aeb-92420f53ae6e/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb4bb07-898b-47f2-8aeb-92420f53ae6e/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 77fbc3ec0aa1e3a17f6dd73b5c59e0107945f53ef89e3fc3ca652830ca5bf043 [2023-12-02 14:41:25,160 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 14:41:25,181 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 14:41:25,184 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 14:41:25,185 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 14:41:25,186 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 14:41:25,187 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb4bb07-898b-47f2-8aeb-92420f53ae6e/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-40.i [2023-12-02 14:41:28,001 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 14:41:28,217 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 14:41:28,217 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb4bb07-898b-47f2-8aeb-92420f53ae6e/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-40.i [2023-12-02 14:41:28,228 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb4bb07-898b-47f2-8aeb-92420f53ae6e/bin/utaipan-verify-nQ1chXbOIh/data/49e0405e2/b7a46f0c462a45229ee33239f5d10151/FLAG67e34eb38 [2023-12-02 14:41:28,242 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb4bb07-898b-47f2-8aeb-92420f53ae6e/bin/utaipan-verify-nQ1chXbOIh/data/49e0405e2/b7a46f0c462a45229ee33239f5d10151 [2023-12-02 14:41:28,244 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 14:41:28,245 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 14:41:28,246 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 14:41:28,246 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 14:41:28,250 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 14:41:28,251 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:41:28" (1/1) ... [2023-12-02 14:41:28,252 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fd7bcfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:41:28, skipping insertion in model container [2023-12-02 14:41:28,253 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:41:28" (1/1) ... [2023-12-02 14:41:28,282 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 14:41:28,404 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_9fb4bb07-898b-47f2-8aeb-92420f53ae6e/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-40.i[917,930] [2023-12-02 14:41:28,458 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 14:41:28,474 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 14:41:28,484 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_9fb4bb07-898b-47f2-8aeb-92420f53ae6e/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-40.i[917,930] [2023-12-02 14:41:28,517 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 14:41:28,534 INFO L206 MainTranslator]: Completed translation [2023-12-02 14:41:28,534 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:41:28 WrapperNode [2023-12-02 14:41:28,534 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 14:41:28,535 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 14:41:28,535 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 14:41:28,536 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 14:41:28,541 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:41:28" (1/1) ... [2023-12-02 14:41:28,555 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:41:28" (1/1) ... [2023-12-02 14:41:28,587 INFO L138 Inliner]: procedures = 27, calls = 43, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 162 [2023-12-02 14:41:28,587 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 14:41:28,588 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 14:41:28,588 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 14:41:28,589 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 14:41:28,596 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:41:28" (1/1) ... [2023-12-02 14:41:28,597 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:41:28" (1/1) ... [2023-12-02 14:41:28,602 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:41:28" (1/1) ... [2023-12-02 14:41:28,603 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:41:28" (1/1) ... [2023-12-02 14:41:28,616 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:41:28" (1/1) ... [2023-12-02 14:41:28,620 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:41:28" (1/1) ... [2023-12-02 14:41:28,624 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:41:28" (1/1) ... [2023-12-02 14:41:28,627 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:41:28" (1/1) ... [2023-12-02 14:41:28,632 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 14:41:28,633 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 14:41:28,634 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 14:41:28,634 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 14:41:28,635 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:41:28" (1/1) ... [2023-12-02 14:41:28,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 14:41:28,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb4bb07-898b-47f2-8aeb-92420f53ae6e/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:41:28,671 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb4bb07-898b-47f2-8aeb-92420f53ae6e/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 14:41:28,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb4bb07-898b-47f2-8aeb-92420f53ae6e/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 14:41:28,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 14:41:28,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 14:41:28,709 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 14:41:28,709 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 14:41:28,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 14:41:28,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 14:41:28,799 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 14:41:28,801 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 14:41:29,389 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 14:41:29,497 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 14:41:29,497 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 14:41:29,500 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:41:29 BoogieIcfgContainer [2023-12-02 14:41:29,501 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 14:41:29,503 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 14:41:29,503 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 14:41:29,507 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 14:41:29,508 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:41:28" (1/3) ... [2023-12-02 14:41:29,508 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72d0c873 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:41:29, skipping insertion in model container [2023-12-02 14:41:29,508 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:41:28" (2/3) ... [2023-12-02 14:41:29,509 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72d0c873 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:41:29, skipping insertion in model container [2023-12-02 14:41:29,509 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:41:29" (3/3) ... [2023-12-02 14:41:29,510 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_steplocals_file-40.i [2023-12-02 14:41:29,529 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 14:41:29,529 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 14:41:29,583 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 14:41:29,590 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;@dd31fa5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 14:41:29,590 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 14:41:29,594 INFO L276 IsEmpty]: Start isEmpty. Operand has 71 states, 38 states have (on average 1.368421052631579) internal successors, (52), 39 states have internal predecessors, (52), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-02 14:41:29,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-12-02 14:41:29,613 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:41:29,614 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:41:29,614 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:41:29,620 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:41:29,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1400745751, now seen corresponding path program 1 times [2023-12-02 14:41:29,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 14:41:29,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1183016309] [2023-12-02 14:41:29,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:41:29,636 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 [2023-12-02 14:41:29,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb4bb07-898b-47f2-8aeb-92420f53ae6e/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 14:41:29,640 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb4bb07-898b-47f2-8aeb-92420f53ae6e/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 14:41:29,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb4bb07-898b-47f2-8aeb-92420f53ae6e/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 14:41:29,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:41:29,939 INFO L262 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 14:41:29,952 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:41:30,001 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 370 proven. 0 refuted. 0 times theorem prover too weak. 1370 trivial. 0 not checked. [2023-12-02 14:41:30,001 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 14:41:30,002 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 14:41:30,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1183016309] [2023-12-02 14:41:30,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1183016309] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:41:30,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:41:30,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 14:41:30,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31764653] [2023-12-02 14:41:30,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:41:30,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 14:41:30,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 14:41:30,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 14:41:30,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 14:41:30,039 INFO L87 Difference]: Start difference. First operand has 71 states, 38 states have (on average 1.368421052631579) internal successors, (52), 39 states have internal predecessors, (52), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) Second operand has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-12-02 14:41:30,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:41:30,170 INFO L93 Difference]: Finished difference Result 139 states and 252 transitions. [2023-12-02 14:41:30,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 14:41:30,181 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 180 [2023-12-02 14:41:30,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:41:30,188 INFO L225 Difference]: With dead ends: 139 [2023-12-02 14:41:30,188 INFO L226 Difference]: Without dead ends: 69 [2023-12-02 14:41:30,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 14:41:30,195 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:41:30,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 102 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 14:41:30,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2023-12-02 14:41:30,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2023-12-02 14:41:30,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 37 states have (on average 1.2162162162162162) internal successors, (45), 37 states have internal predecessors, (45), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-02 14:41:30,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 105 transitions. [2023-12-02 14:41:30,243 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 105 transitions. Word has length 180 [2023-12-02 14:41:30,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:41:30,243 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 105 transitions. [2023-12-02 14:41:30,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-12-02 14:41:30,244 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 105 transitions. [2023-12-02 14:41:30,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2023-12-02 14:41:30,248 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:41:30,249 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:41:30,261 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb4bb07-898b-47f2-8aeb-92420f53ae6e/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 14:41:30,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb4bb07-898b-47f2-8aeb-92420f53ae6e/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 14:41:30,453 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:41:30,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:41:30,453 INFO L85 PathProgramCache]: Analyzing trace with hash 234128224, now seen corresponding path program 1 times [2023-12-02 14:41:30,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 14:41:30,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1273688031] [2023-12-02 14:41:30,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:41:30,455 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 [2023-12-02 14:41:30,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb4bb07-898b-47f2-8aeb-92420f53ae6e/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 14:41:30,456 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb4bb07-898b-47f2-8aeb-92420f53ae6e/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 14:41:30,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb4bb07-898b-47f2-8aeb-92420f53ae6e/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 14:41:30,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:41:30,720 INFO L262 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 14:41:30,729 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:41:31,023 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 857 proven. 33 refuted. 0 times theorem prover too weak. 850 trivial. 0 not checked. [2023-12-02 14:41:31,023 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 14:41:31,297 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 54 proven. 33 refuted. 0 times theorem prover too weak. 1653 trivial. 0 not checked. [2023-12-02 14:41:31,297 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 14:41:31,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1273688031] [2023-12-02 14:41:31,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1273688031] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 14:41:31,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [138692086] [2023-12-02 14:41:31,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:41:31,298 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 14:41:31,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb4bb07-898b-47f2-8aeb-92420f53ae6e/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 14:41:31,321 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb4bb07-898b-47f2-8aeb-92420f53ae6e/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 14:41:31,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb4bb07-898b-47f2-8aeb-92420f53ae6e/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-02 14:41:32,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:41:32,353 INFO L262 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 14:41:32,361 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:41:32,547 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 857 proven. 33 refuted. 0 times theorem prover too weak. 850 trivial. 0 not checked. [2023-12-02 14:41:32,557 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 14:41:32,773 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 54 proven. 33 refuted. 0 times theorem prover too weak. 1653 trivial. 0 not checked. [2023-12-02 14:41:32,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [138692086] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 14:41:32,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2130013284] [2023-12-02 14:41:32,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:41:32,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:41:32,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb4bb07-898b-47f2-8aeb-92420f53ae6e/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:41:32,775 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb4bb07-898b-47f2-8aeb-92420f53ae6e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:41:32,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb4bb07-898b-47f2-8aeb-92420f53ae6e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 14:41:32,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:41:32,973 INFO L262 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 14:41:32,978 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:41:33,172 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 857 proven. 33 refuted. 0 times theorem prover too weak. 850 trivial. 0 not checked. [2023-12-02 14:41:33,172 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 14:41:33,392 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 54 proven. 33 refuted. 0 times theorem prover too weak. 1653 trivial. 0 not checked. [2023-12-02 14:41:33,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2130013284] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 14:41:33,392 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-12-02 14:41:33,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 6, 6] total 8 [2023-12-02 14:41:33,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189981174] [2023-12-02 14:41:33,394 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-12-02 14:41:33,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-02 14:41:33,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 14:41:33,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-02 14:41:33,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-02 14:41:33,399 INFO L87 Difference]: Start difference. First operand 69 states and 105 transitions. Second operand has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 2 states have call successors, (41), 2 states have call predecessors, (41), 4 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2023-12-02 14:41:34,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:41:34,507 INFO L93 Difference]: Finished difference Result 217 states and 319 transitions. [2023-12-02 14:41:34,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-02 14:41:34,508 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 2 states have call successors, (41), 2 states have call predecessors, (41), 4 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 181 [2023-12-02 14:41:34,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:41:34,512 INFO L225 Difference]: With dead ends: 217 [2023-12-02 14:41:34,512 INFO L226 Difference]: Without dead ends: 149 [2023-12-02 14:41:34,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1092 GetRequests, 1072 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342 [2023-12-02 14:41:34,516 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 98 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-02 14:41:34,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 273 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-02 14:41:34,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2023-12-02 14:41:34,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 71. [2023-12-02 14:41:34,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 38 states have (on average 1.105263157894737) internal successors, (42), 38 states have internal predecessors, (42), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-02 14:41:34,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 102 transitions. [2023-12-02 14:41:34,542 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 102 transitions. Word has length 181 [2023-12-02 14:41:34,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:41:34,544 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 102 transitions. [2023-12-02 14:41:34,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 2 states have call successors, (41), 2 states have call predecessors, (41), 4 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2023-12-02 14:41:34,544 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 102 transitions. [2023-12-02 14:41:34,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2023-12-02 14:41:34,548 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:41:34,548 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:41:34,555 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb4bb07-898b-47f2-8aeb-92420f53ae6e/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-12-02 14:41:34,761 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb4bb07-898b-47f2-8aeb-92420f53ae6e/bin/utaipan-verify-nQ1chXbOIh/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)] Ended with exit code 0 [2023-12-02 14:41:34,964 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb4bb07-898b-47f2-8aeb-92420f53ae6e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 14:41:35,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb4bb07-898b-47f2-8aeb-92420f53ae6e/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb4bb07-898b-47f2-8aeb-92420f53ae6e/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb4bb07-898b-47f2-8aeb-92420f53ae6e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:41:35,156 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:41:35,156 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:41:35,156 INFO L85 PathProgramCache]: Analyzing trace with hash 2009135586, now seen corresponding path program 1 times [2023-12-02 14:41:35,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 14:41:35,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1722255373] [2023-12-02 14:41:35,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:41:35,157 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 [2023-12-02 14:41:35,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb4bb07-898b-47f2-8aeb-92420f53ae6e/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 14:41:35,158 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb4bb07-898b-47f2-8aeb-92420f53ae6e/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 14:41:35,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fb4bb07-898b-47f2-8aeb-92420f53ae6e/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-02 14:41:35,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:41:35,498 INFO L262 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-02 14:41:35,507 INFO L285 TraceCheckSpWp]: Computing forward predicates...