./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-58.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-58.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ --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 55551975c39567cc0af997a25b5a60ed7bf159e5142253b0ae97d8bdefe29048 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:09:32,485 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:09:32,565 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 04:09:32,572 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:09:32,573 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:09:32,623 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:09:32,624 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:09:32,624 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:09:32,625 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:09:32,630 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:09:32,631 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:09:32,632 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:09:32,632 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:09:32,634 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:09:32,634 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:09:32,635 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:09:32,635 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:09:32,636 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:09:32,636 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:09:32,637 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:09:32,637 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:09:32,638 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:09:32,638 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:09:32,639 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:09:32,639 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:09:32,639 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:09:32,640 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:09:32,640 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:09:32,641 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:09:32,641 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:09:32,641 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:09:32,642 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:09:32,642 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:09:32,642 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:09:32,643 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:09:32,643 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:09:32,643 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:09:32,643 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:09:32,657 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:09:32,657 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:09:32,657 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:09:32,658 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:09:32,658 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:09:32,658 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:09:32,659 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:09:32,659 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_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 55551975c39567cc0af997a25b5a60ed7bf159e5142253b0ae97d8bdefe29048 [2023-11-19 04:09:32,955 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:09:32,979 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:09:32,981 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:09:32,983 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:09:32,983 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:09:32,985 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-58.i [2023-11-19 04:09:36,087 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:09:36,345 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:09:36,345 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-58.i [2023-11-19 04:09:36,363 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/data/142b98ac3/9179e398214d4a0dab4be9868590cfbd/FLAG9ecd619ec [2023-11-19 04:09:36,380 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/data/142b98ac3/9179e398214d4a0dab4be9868590cfbd [2023-11-19 04:09:36,388 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:09:36,391 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:09:36,396 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:09:36,396 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:09:36,402 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:09:36,403 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:09:36" (1/1) ... [2023-11-19 04:09:36,404 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@747d61e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:36, skipping insertion in model container [2023-11-19 04:09:36,404 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:09:36" (1/1) ... [2023-11-19 04:09:36,458 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:09:36,623 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_695be426-f1d4-4743-88da-d1da161174c1/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-58.i[919,932] [2023-11-19 04:09:36,712 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:09:36,734 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:09:36,748 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_695be426-f1d4-4743-88da-d1da161174c1/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-58.i[919,932] [2023-11-19 04:09:36,788 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:09:36,807 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:09:36,808 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:36 WrapperNode [2023-11-19 04:09:36,808 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:09:36,809 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:09:36,809 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:09:36,809 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:09:36,817 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:36" (1/1) ... [2023-11-19 04:09:36,834 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:36" (1/1) ... [2023-11-19 04:09:36,887 INFO L138 Inliner]: procedures = 26, calls = 39, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 225 [2023-11-19 04:09:36,888 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:09:36,888 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:09:36,889 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:09:36,889 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:09:36,903 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:36" (1/1) ... [2023-11-19 04:09:36,904 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:36" (1/1) ... [2023-11-19 04:09:36,908 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:36" (1/1) ... [2023-11-19 04:09:36,908 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:36" (1/1) ... [2023-11-19 04:09:36,936 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:36" (1/1) ... [2023-11-19 04:09:36,941 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:36" (1/1) ... [2023-11-19 04:09:36,949 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:36" (1/1) ... [2023-11-19 04:09:36,953 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:36" (1/1) ... [2023-11-19 04:09:36,958 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:09:36,959 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:09:36,959 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:09:36,959 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:09:36,960 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:36" (1/1) ... [2023-11-19 04:09:36,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:09:36,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:09:37,005 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:09:37,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:09:37,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:09:37,051 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 04:09:37,052 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 04:09:37,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:09:37,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:09:37,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:09:37,227 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:09:37,230 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:09:37,823 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:09:38,265 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:09:38,265 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:09:38,271 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:09:38 BoogieIcfgContainer [2023-11-19 04:09:38,272 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:09:38,277 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:09:38,277 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:09:38,280 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:09:38,280 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:09:36" (1/3) ... [2023-11-19 04:09:38,281 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50a36966 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:09:38, skipping insertion in model container [2023-11-19 04:09:38,282 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:36" (2/3) ... [2023-11-19 04:09:38,284 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50a36966 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:09:38, skipping insertion in model container [2023-11-19 04:09:38,285 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:09:38" (3/3) ... [2023-11-19 04:09:38,286 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-ci_file-58.i [2023-11-19 04:09:38,305 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:09:38,306 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:09:38,372 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:09:38,380 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;@49b108db, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:09:38,381 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:09:38,385 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 20 states have internal predecessors, (22), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-19 04:09:38,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-19 04:09:38,400 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:09:38,401 INFO L195 NwaCegarLoop]: trace histogram [26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:09:38,402 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:09:38,409 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:09:38,410 INFO L85 PathProgramCache]: Analyzing trace with hash -474539730, now seen corresponding path program 1 times [2023-11-19 04:09:38,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:09:38,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075185980] [2023-11-19 04:09:38,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:09:38,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:09:38,671 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 04:09:38,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [811761054] [2023-11-19 04:09:38,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:09:38,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 04:09:38,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:09:38,674 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 04:09:38,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 04:09:39,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:09:39,007 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:09:39,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:09:39,394 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 04:09:39,397 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 04:09:39,398 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 04:09:39,415 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 04:09:39,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-19 04:09:39,611 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-19 04:09:39,615 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 04:09:39,799 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:09:39 BoogieIcfgContainer [2023-11-19 04:09:39,800 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 04:09:39,800 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:09:39,801 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:09:39,801 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:09:39,801 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:09:38" (3/4) ... [2023-11-19 04:09:39,808 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 04:09:39,809 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:09:39,810 INFO L158 Benchmark]: Toolchain (without parser) took 3419.03ms. Allocated memory is still 172.0MB. Free memory was 140.1MB in the beginning and 74.6MB in the end (delta: 65.5MB). Peak memory consumption was 64.7MB. Max. memory is 16.1GB. [2023-11-19 04:09:39,811 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 130.0MB. Free memory was 101.9MB in the beginning and 101.8MB in the end (delta: 133.1kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:09:39,812 INFO L158 Benchmark]: CACSL2BoogieTranslator took 412.29ms. Allocated memory is still 172.0MB. Free memory was 139.9MB in the beginning and 129.5MB in the end (delta: 10.4MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. [2023-11-19 04:09:39,814 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.82ms. Allocated memory is still 172.0MB. Free memory was 129.5MB in the beginning and 125.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 04:09:39,817 INFO L158 Benchmark]: Boogie Preprocessor took 70.02ms. Allocated memory is still 172.0MB. Free memory was 125.3MB in the beginning and 123.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:09:39,818 INFO L158 Benchmark]: RCFGBuilder took 1312.65ms. Allocated memory is still 172.0MB. Free memory was 123.2MB in the beginning and 127.0MB in the end (delta: -3.9MB). Peak memory consumption was 53.6MB. Max. memory is 16.1GB. [2023-11-19 04:09:39,818 INFO L158 Benchmark]: TraceAbstraction took 1523.36ms. Allocated memory is still 172.0MB. Free memory was 126.0MB in the beginning and 74.6MB in the end (delta: 51.4MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2023-11-19 04:09:39,819 INFO L158 Benchmark]: Witness Printer took 8.65ms. Allocated memory is still 172.0MB. Free memory is still 74.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:09:39,822 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 130.0MB. Free memory was 101.9MB in the beginning and 101.8MB in the end (delta: 133.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 412.29ms. Allocated memory is still 172.0MB. Free memory was 139.9MB in the beginning and 129.5MB in the end (delta: 10.4MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.82ms. Allocated memory is still 172.0MB. Free memory was 129.5MB in the beginning and 125.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 70.02ms. Allocated memory is still 172.0MB. Free memory was 125.3MB in the beginning and 123.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1312.65ms. Allocated memory is still 172.0MB. Free memory was 123.2MB in the beginning and 127.0MB in the end (delta: -3.9MB). Peak memory consumption was 53.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1523.36ms. Allocated memory is still 172.0MB. Free memory was 126.0MB in the beginning and 74.6MB in the end (delta: 51.4MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * Witness Printer took 8.65ms. Allocated memory is still 172.0MB. Free memory is still 74.6MB. 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 someBinaryFLOATComparisonOperation at line 186, overapproximation of bitwiseOr at line 120, overapproximation of bitwiseAnd at line 70. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 0; [L23] unsigned char var_1_3 = 16; [L24] unsigned char var_1_5 = 200; [L25] unsigned char var_1_6 = 1; [L26] unsigned char var_1_7 = 0; [L27] unsigned char var_1_8 = 0; [L28] unsigned char var_1_9 = 0; [L29] signed short int var_1_10 = 128; [L30] signed short int var_1_11 = 5; [L31] signed char var_1_12 = -2; [L32] signed char var_1_13 = -32; [L33] signed char var_1_14 = 2; [L34] signed char var_1_15 = 25; [L35] signed char var_1_16 = 1; [L36] signed char var_1_17 = 0; [L37] signed long int var_1_18 = -16; [L38] float var_1_19 = 2.775; [L39] unsigned long int var_1_20 = 2381110720; [L40] float var_1_21 = 10000000000000.5; [L41] unsigned char var_1_22 = 1; [L42] unsigned char var_1_24 = 0; [L43] unsigned long int var_1_25 = 256; [L44] signed char var_1_30 = -128; [L45] unsigned short int var_1_33 = 0; [L46] signed short int var_1_34 = -10; [L47] signed short int var_1_35 = -16; [L48] signed char var_1_37 = -10; [L49] signed char var_1_38 = 16; [L50] unsigned short int var_1_39 = 4; [L51] signed short int last_1_var_1_10 = 128; [L52] signed short int last_1_var_1_11 = 5; [L53] signed char last_1_var_1_15 = 25; [L190] isInitial = 1 [L191] FCALL initially() [L192] COND TRUE 1 [L193] CALL updateLastVariables() [L181] last_1_var_1_10 = var_1_10 [L182] last_1_var_1_11 = var_1_11 [L183] last_1_var_1_15 = var_1_15 [L193] RET updateLastVariables() [L194] CALL updateVariables() [L140] var_1_3 = __VERIFIER_nondet_uchar() [L141] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=5, last_1_var_1_15=25, var_1_10=128, var_1_11=5, var_1_12=-2, var_1_13=-32, var_1_14=2, var_1_15=25, var_1_16=1, var_1_17=0, var_1_18=-16, var_1_19=111/40, var_1_1=0, var_1_20=2381110720, var_1_21=20000000000001/2, var_1_22=1, var_1_24=0, var_1_25=256, var_1_30=-128, var_1_33=0, var_1_34=-10, var_1_35=-16, var_1_37=-10, var_1_38=16, var_1_39=4, var_1_5=200, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) [L141] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=5, last_1_var_1_15=25, var_1_10=128, var_1_11=5, var_1_12=-2, var_1_13=-32, var_1_14=2, var_1_15=25, var_1_16=1, var_1_17=0, var_1_18=-16, var_1_19=111/40, var_1_1=0, var_1_20=2381110720, var_1_21=20000000000001/2, var_1_22=1, var_1_24=0, var_1_25=256, var_1_30=-128, var_1_33=0, var_1_34=-10, var_1_35=-16, var_1_37=-10, var_1_38=16, var_1_39=4, var_1_5=200, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=0] [L142] CALL assume_abort_if_not(var_1_3 <= 255) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=5, last_1_var_1_15=25, var_1_10=128, var_1_11=5, var_1_12=-2, var_1_13=-32, var_1_14=2, var_1_15=25, var_1_16=1, var_1_17=0, var_1_18=-16, var_1_19=111/40, var_1_1=0, var_1_20=2381110720, var_1_21=20000000000001/2, var_1_22=1, var_1_24=0, var_1_25=256, var_1_30=-128, var_1_33=0, var_1_34=-10, var_1_35=-16, var_1_37=-10, var_1_38=16, var_1_39=4, var_1_5=200, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) [L142] RET assume_abort_if_not(var_1_3 <= 255) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=5, last_1_var_1_15=25, var_1_10=128, var_1_11=5, var_1_12=-2, var_1_13=-32, var_1_14=2, var_1_15=25, var_1_16=1, var_1_17=0, var_1_18=-16, var_1_19=111/40, var_1_1=0, var_1_20=2381110720, var_1_21=20000000000001/2, var_1_22=1, var_1_24=0, var_1_25=256, var_1_30=-128, var_1_33=0, var_1_34=-10, var_1_35=-16, var_1_37=-10, var_1_38=16, var_1_39=4, var_1_5=200, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=0] [L143] CALL assume_abort_if_not(var_1_3 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=5, last_1_var_1_15=25, var_1_10=128, var_1_11=5, var_1_12=-2, var_1_13=-32, var_1_14=2, var_1_15=25, var_1_16=1, var_1_17=0, var_1_18=-16, var_1_19=111/40, var_1_1=0, var_1_20=2381110720, var_1_21=20000000000001/2, var_1_22=1, var_1_24=0, var_1_25=256, var_1_30=-128, var_1_33=0, var_1_34=-10, var_1_35=-16, var_1_37=-10, var_1_38=16, var_1_39=4, var_1_3=9, var_1_5=200, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) [L143] RET assume_abort_if_not(var_1_3 != 0) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=5, last_1_var_1_15=25, var_1_10=128, var_1_11=5, var_1_12=-2, var_1_13=-32, var_1_14=2, var_1_15=25, var_1_16=1, var_1_17=0, var_1_18=-16, var_1_19=111/40, var_1_1=0, var_1_20=2381110720, var_1_21=20000000000001/2, var_1_22=1, var_1_24=0, var_1_25=256, var_1_30=-128, var_1_33=0, var_1_34=-10, var_1_35=-16, var_1_37=-10, var_1_38=16, var_1_39=4, var_1_3=9, var_1_5=200, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=0] [L144] var_1_5 = __VERIFIER_nondet_uchar() [L145] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=5, last_1_var_1_15=25, var_1_10=128, var_1_11=5, var_1_12=-2, var_1_13=-32, var_1_14=2, var_1_15=25, var_1_16=1, var_1_17=0, var_1_18=-16, var_1_19=111/40, var_1_1=0, var_1_20=2381110720, var_1_21=20000000000001/2, var_1_22=1, var_1_24=0, var_1_25=256, var_1_30=-128, var_1_33=0, var_1_34=-10, var_1_35=-16, var_1_37=-10, var_1_38=16, var_1_39=4, var_1_3=9, var_1_5=36, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) [L145] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=5, last_1_var_1_15=25, var_1_10=128, var_1_11=5, var_1_12=-2, var_1_13=-32, var_1_14=2, var_1_15=25, var_1_16=1, var_1_17=0, var_1_18=-16, var_1_19=111/40, var_1_1=0, var_1_20=2381110720, var_1_21=20000000000001/2, var_1_22=1, var_1_24=0, var_1_25=256, var_1_30=-128, var_1_33=0, var_1_34=-10, var_1_35=-16, var_1_37=-10, var_1_38=16, var_1_39=4, var_1_3=9, var_1_5=36, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=0] [L146] CALL assume_abort_if_not(var_1_5 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=5, last_1_var_1_15=25, var_1_10=128, var_1_11=5, var_1_12=-2, var_1_13=-32, var_1_14=2, var_1_15=25, var_1_16=1, var_1_17=0, var_1_18=-16, var_1_19=111/40, var_1_1=0, var_1_20=2381110720, var_1_21=20000000000001/2, var_1_22=1, var_1_24=0, var_1_25=256, var_1_30=-128, var_1_33=0, var_1_34=-10, var_1_35=-16, var_1_37=-10, var_1_38=16, var_1_39=4, var_1_3=9, var_1_5=36, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) [L146] RET assume_abort_if_not(var_1_5 <= 254) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=5, last_1_var_1_15=25, var_1_10=128, var_1_11=5, var_1_12=-2, var_1_13=-32, var_1_14=2, var_1_15=25, var_1_16=1, var_1_17=0, var_1_18=-16, var_1_19=111/40, var_1_1=0, var_1_20=2381110720, var_1_21=20000000000001/2, var_1_22=1, var_1_24=0, var_1_25=256, var_1_30=-128, var_1_33=0, var_1_34=-10, var_1_35=-16, var_1_37=-10, var_1_38=16, var_1_39=4, var_1_3=9, var_1_5=36, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=0] [L147] var_1_6 = __VERIFIER_nondet_uchar() [L148] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=5, last_1_var_1_15=25, var_1_10=128, var_1_11=5, var_1_12=-2, var_1_13=-32, var_1_14=2, var_1_15=25, var_1_16=1, var_1_17=0, var_1_18=-16, var_1_19=111/40, var_1_1=0, var_1_20=2381110720, var_1_21=20000000000001/2, var_1_22=1, var_1_24=0, var_1_25=256, var_1_30=-128, var_1_33=0, var_1_34=-10, var_1_35=-16, var_1_37=-10, var_1_38=16, var_1_39=4, var_1_3=9, var_1_5=36, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) [L148] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=5, last_1_var_1_15=25, var_1_10=128, var_1_11=5, var_1_12=-2, var_1_13=-32, var_1_14=2, var_1_15=25, var_1_16=1, var_1_17=0, var_1_18=-16, var_1_19=111/40, var_1_1=0, var_1_20=2381110720, var_1_21=20000000000001/2, var_1_22=1, var_1_24=0, var_1_25=256, var_1_30=-128, var_1_33=0, var_1_34=-10, var_1_35=-16, var_1_37=-10, var_1_38=16, var_1_39=4, var_1_3=9, var_1_5=36, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=0] [L149] CALL assume_abort_if_not(var_1_6 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=5, last_1_var_1_15=25, var_1_10=128, var_1_11=5, var_1_12=-2, var_1_13=-32, var_1_14=2, var_1_15=25, var_1_16=1, var_1_17=0, var_1_18=-16, var_1_19=111/40, var_1_1=0, var_1_20=2381110720, var_1_21=20000000000001/2, var_1_22=1, var_1_24=0, var_1_25=256, var_1_30=-128, var_1_33=0, var_1_34=-10, var_1_35=-16, var_1_37=-10, var_1_38=16, var_1_39=4, var_1_3=9, var_1_5=36, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) [L149] RET assume_abort_if_not(var_1_6 <= 1) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=5, last_1_var_1_15=25, var_1_10=128, var_1_11=5, var_1_12=-2, var_1_13=-32, var_1_14=2, var_1_15=25, var_1_16=1, var_1_17=0, var_1_18=-16, var_1_19=111/40, var_1_1=0, var_1_20=2381110720, var_1_21=20000000000001/2, var_1_22=1, var_1_24=0, var_1_25=256, var_1_30=-128, var_1_33=0, var_1_34=-10, var_1_35=-16, var_1_37=-10, var_1_38=16, var_1_39=4, var_1_3=9, var_1_5=36, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=0] [L150] var_1_7 = __VERIFIER_nondet_uchar() [L151] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=5, last_1_var_1_15=25, var_1_10=128, var_1_11=5, var_1_12=-2, var_1_13=-32, var_1_14=2, var_1_15=25, var_1_16=1, var_1_17=0, var_1_18=-16, var_1_19=111/40, var_1_1=0, var_1_20=2381110720, var_1_21=20000000000001/2, var_1_22=1, var_1_24=0, var_1_25=256, var_1_30=-128, var_1_33=0, var_1_34=-10, var_1_35=-16, var_1_37=-10, var_1_38=16, var_1_39=4, var_1_3=9, var_1_5=36, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) [L151] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=5, last_1_var_1_15=25, var_1_10=128, var_1_11=5, var_1_12=-2, var_1_13=-32, var_1_14=2, var_1_15=25, var_1_16=1, var_1_17=0, var_1_18=-16, var_1_19=111/40, var_1_1=0, var_1_20=2381110720, var_1_21=20000000000001/2, var_1_22=1, var_1_24=0, var_1_25=256, var_1_30=-128, var_1_33=0, var_1_34=-10, var_1_35=-16, var_1_37=-10, var_1_38=16, var_1_39=4, var_1_3=9, var_1_5=36, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=0] [L152] CALL assume_abort_if_not(var_1_7 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=5, last_1_var_1_15=25, var_1_10=128, var_1_11=5, var_1_12=-2, var_1_13=-32, var_1_14=2, var_1_15=25, var_1_16=1, var_1_17=0, var_1_18=-16, var_1_19=111/40, var_1_1=0, var_1_20=2381110720, var_1_21=20000000000001/2, var_1_22=1, var_1_24=0, var_1_25=256, var_1_30=-128, var_1_33=0, var_1_34=-10, var_1_35=-16, var_1_37=-10, var_1_38=16, var_1_39=4, var_1_3=9, var_1_5=36, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) [L152] RET assume_abort_if_not(var_1_7 <= 1) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=5, last_1_var_1_15=25, var_1_10=128, var_1_11=5, var_1_12=-2, var_1_13=-32, var_1_14=2, var_1_15=25, var_1_16=1, var_1_17=0, var_1_18=-16, var_1_19=111/40, var_1_1=0, var_1_20=2381110720, var_1_21=20000000000001/2, var_1_22=1, var_1_24=0, var_1_25=256, var_1_30=-128, var_1_33=0, var_1_34=-10, var_1_35=-16, var_1_37=-10, var_1_38=16, var_1_39=4, var_1_3=9, var_1_5=36, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=0] [L153] var_1_8 = __VERIFIER_nondet_uchar() [L154] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=5, last_1_var_1_15=25, var_1_10=128, var_1_11=5, var_1_12=-2, var_1_13=-32, var_1_14=2, var_1_15=25, var_1_16=1, var_1_17=0, var_1_18=-16, var_1_19=111/40, var_1_1=0, var_1_20=2381110720, var_1_21=20000000000001/2, var_1_22=1, var_1_24=0, var_1_25=256, var_1_30=-128, var_1_33=0, var_1_34=-10, var_1_35=-16, var_1_37=-10, var_1_38=16, var_1_39=4, var_1_3=9, var_1_5=36, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L154] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=5, last_1_var_1_15=25, var_1_10=128, var_1_11=5, var_1_12=-2, var_1_13=-32, var_1_14=2, var_1_15=25, var_1_16=1, var_1_17=0, var_1_18=-16, var_1_19=111/40, var_1_1=0, var_1_20=2381110720, var_1_21=20000000000001/2, var_1_22=1, var_1_24=0, var_1_25=256, var_1_30=-128, var_1_33=0, var_1_34=-10, var_1_35=-16, var_1_37=-10, var_1_38=16, var_1_39=4, var_1_3=9, var_1_5=36, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L155] CALL assume_abort_if_not(var_1_8 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=5, last_1_var_1_15=25, var_1_10=128, var_1_11=5, var_1_12=-2, var_1_13=-32, var_1_14=2, var_1_15=25, var_1_16=1, var_1_17=0, var_1_18=-16, var_1_19=111/40, var_1_1=0, var_1_20=2381110720, var_1_21=20000000000001/2, var_1_22=1, var_1_24=0, var_1_25=256, var_1_30=-128, var_1_33=0, var_1_34=-10, var_1_35=-16, var_1_37=-10, var_1_38=16, var_1_39=4, var_1_3=9, var_1_5=36, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L155] RET assume_abort_if_not(var_1_8 <= 1) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=5, last_1_var_1_15=25, var_1_10=128, var_1_11=5, var_1_12=-2, var_1_13=-32, var_1_14=2, var_1_15=25, var_1_16=1, var_1_17=0, var_1_18=-16, var_1_19=111/40, var_1_1=0, var_1_20=2381110720, var_1_21=20000000000001/2, var_1_22=1, var_1_24=0, var_1_25=256, var_1_30=-128, var_1_33=0, var_1_34=-10, var_1_35=-16, var_1_37=-10, var_1_38=16, var_1_39=4, var_1_3=9, var_1_5=36, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L156] var_1_9 = __VERIFIER_nondet_uchar() [L157] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=5, last_1_var_1_15=25, var_1_10=128, var_1_11=5, var_1_12=-2, var_1_13=-32, var_1_14=2, var_1_15=25, var_1_16=1, var_1_17=0, var_1_18=-16, var_1_19=111/40, var_1_1=0, var_1_20=2381110720, var_1_21=20000000000001/2, var_1_22=1, var_1_24=0, var_1_25=256, var_1_30=-128, var_1_33=0, var_1_34=-10, var_1_35=-16, var_1_37=-10, var_1_38=16, var_1_39=4, var_1_3=9, var_1_5=36, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L157] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=5, last_1_var_1_15=25, var_1_10=128, var_1_11=5, var_1_12=-2, var_1_13=-32, var_1_14=2, var_1_15=25, var_1_16=1, var_1_17=0, var_1_18=-16, var_1_19=111/40, var_1_1=0, var_1_20=2381110720, var_1_21=20000000000001/2, var_1_22=1, var_1_24=0, var_1_25=256, var_1_30=-128, var_1_33=0, var_1_34=-10, var_1_35=-16, var_1_37=-10, var_1_38=16, var_1_39=4, var_1_3=9, var_1_5=36, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L158] CALL assume_abort_if_not(var_1_9 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=5, last_1_var_1_15=25, var_1_10=128, var_1_11=5, var_1_12=-2, var_1_13=-32, var_1_14=2, var_1_15=25, var_1_16=1, var_1_17=0, var_1_18=-16, var_1_19=111/40, var_1_1=0, var_1_20=2381110720, var_1_21=20000000000001/2, var_1_22=1, var_1_24=0, var_1_25=256, var_1_30=-128, var_1_33=0, var_1_34=-10, var_1_35=-16, var_1_37=-10, var_1_38=16, var_1_39=4, var_1_3=9, var_1_5=36, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L158] RET assume_abort_if_not(var_1_9 <= 1) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=5, last_1_var_1_15=25, var_1_10=128, var_1_11=5, var_1_12=-2, var_1_13=-32, var_1_14=2, var_1_15=25, var_1_16=1, var_1_17=0, var_1_18=-16, var_1_19=111/40, var_1_1=0, var_1_20=2381110720, var_1_21=20000000000001/2, var_1_22=1, var_1_24=0, var_1_25=256, var_1_30=-128, var_1_33=0, var_1_34=-10, var_1_35=-16, var_1_37=-10, var_1_38=16, var_1_39=4, var_1_3=9, var_1_5=36, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L159] var_1_13 = __VERIFIER_nondet_char() [L160] CALL assume_abort_if_not(var_1_13 >= -127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=5, last_1_var_1_15=25, var_1_10=128, var_1_11=5, var_1_12=-2, var_1_13=0, var_1_14=2, var_1_15=25, var_1_16=1, var_1_17=0, var_1_18=-16, var_1_19=111/40, var_1_1=0, var_1_20=2381110720, var_1_21=20000000000001/2, var_1_22=1, var_1_24=0, var_1_25=256, var_1_30=-128, var_1_33=0, var_1_34=-10, var_1_35=-16, var_1_37=-10, var_1_38=16, var_1_39=4, var_1_3=9, var_1_5=36, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L160] RET assume_abort_if_not(var_1_13 >= -127) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=5, last_1_var_1_15=25, var_1_10=128, var_1_11=5, var_1_12=-2, var_1_13=0, var_1_14=2, var_1_15=25, var_1_16=1, var_1_17=0, var_1_18=-16, var_1_19=111/40, var_1_1=0, var_1_20=2381110720, var_1_21=20000000000001/2, var_1_22=1, var_1_24=0, var_1_25=256, var_1_30=-128, var_1_33=0, var_1_34=-10, var_1_35=-16, var_1_37=-10, var_1_38=16, var_1_39=4, var_1_3=9, var_1_5=36, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L161] CALL assume_abort_if_not(var_1_13 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=5, last_1_var_1_15=25, var_1_10=128, var_1_11=5, var_1_12=-2, var_1_13=0, var_1_14=2, var_1_15=25, var_1_16=1, var_1_17=0, var_1_18=-16, var_1_19=111/40, var_1_1=0, var_1_20=2381110720, var_1_21=20000000000001/2, var_1_22=1, var_1_24=0, var_1_25=256, var_1_30=-128, var_1_33=0, var_1_34=-10, var_1_35=-16, var_1_37=-10, var_1_38=16, var_1_39=4, var_1_3=9, var_1_5=36, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L161] RET assume_abort_if_not(var_1_13 <= 126) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=5, last_1_var_1_15=25, var_1_10=128, var_1_11=5, var_1_12=-2, var_1_13=0, var_1_14=2, var_1_15=25, var_1_16=1, var_1_17=0, var_1_18=-16, var_1_19=111/40, var_1_1=0, var_1_20=2381110720, var_1_21=20000000000001/2, var_1_22=1, var_1_24=0, var_1_25=256, var_1_30=-128, var_1_33=0, var_1_34=-10, var_1_35=-16, var_1_37=-10, var_1_38=16, var_1_39=4, var_1_3=9, var_1_5=36, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L162] var_1_14 = __VERIFIER_nondet_char() [L163] CALL assume_abort_if_not(var_1_14 >= -127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=5, last_1_var_1_15=25, var_1_10=128, var_1_11=5, var_1_12=-2, var_1_13=0, var_1_14=0, var_1_15=25, var_1_16=1, var_1_17=0, var_1_18=-16, var_1_19=111/40, var_1_1=0, var_1_20=2381110720, var_1_21=20000000000001/2, var_1_22=1, var_1_24=0, var_1_25=256, var_1_30=-128, var_1_33=0, var_1_34=-10, var_1_35=-16, var_1_37=-10, var_1_38=16, var_1_39=4, var_1_3=9, var_1_5=36, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L163] RET assume_abort_if_not(var_1_14 >= -127) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=5, last_1_var_1_15=25, var_1_10=128, var_1_11=5, var_1_12=-2, var_1_13=0, var_1_14=0, var_1_15=25, var_1_16=1, var_1_17=0, var_1_18=-16, var_1_19=111/40, var_1_1=0, var_1_20=2381110720, var_1_21=20000000000001/2, var_1_22=1, var_1_24=0, var_1_25=256, var_1_30=-128, var_1_33=0, var_1_34=-10, var_1_35=-16, var_1_37=-10, var_1_38=16, var_1_39=4, var_1_3=9, var_1_5=36, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L164] CALL assume_abort_if_not(var_1_14 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=5, last_1_var_1_15=25, var_1_10=128, var_1_11=5, var_1_12=-2, var_1_13=0, var_1_14=0, var_1_15=25, var_1_16=1, var_1_17=0, var_1_18=-16, var_1_19=111/40, var_1_1=0, var_1_20=2381110720, var_1_21=20000000000001/2, var_1_22=1, var_1_24=0, var_1_25=256, var_1_30=-128, var_1_33=0, var_1_34=-10, var_1_35=-16, var_1_37=-10, var_1_38=16, var_1_39=4, var_1_3=9, var_1_5=36, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L164] RET assume_abort_if_not(var_1_14 <= 126) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=5, last_1_var_1_15=25, var_1_10=128, var_1_11=5, var_1_12=-2, var_1_13=0, var_1_14=0, var_1_15=25, var_1_16=1, var_1_17=0, var_1_18=-16, var_1_19=111/40, var_1_1=0, var_1_20=2381110720, var_1_21=20000000000001/2, var_1_22=1, var_1_24=0, var_1_25=256, var_1_30=-128, var_1_33=0, var_1_34=-10, var_1_35=-16, var_1_37=-10, var_1_38=16, var_1_39=4, var_1_3=9, var_1_5=36, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L165] var_1_16 = __VERIFIER_nondet_char() [L166] CALL assume_abort_if_not(var_1_16 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=5, last_1_var_1_15=25, var_1_10=128, var_1_11=5, var_1_12=-2, var_1_13=0, var_1_14=0, var_1_15=25, var_1_16=3, var_1_17=0, var_1_18=-16, var_1_19=111/40, var_1_1=0, var_1_20=2381110720, var_1_21=20000000000001/2, var_1_22=1, var_1_24=0, var_1_25=256, var_1_30=-128, var_1_33=0, var_1_34=-10, var_1_35=-16, var_1_37=-10, var_1_38=16, var_1_39=4, var_1_3=9, var_1_5=36, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L166] RET assume_abort_if_not(var_1_16 >= 0) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=5, last_1_var_1_15=25, var_1_10=128, var_1_11=5, var_1_12=-2, var_1_13=0, var_1_14=0, var_1_15=25, var_1_16=3, var_1_17=0, var_1_18=-16, var_1_19=111/40, var_1_1=0, var_1_20=2381110720, var_1_21=20000000000001/2, var_1_22=1, var_1_24=0, var_1_25=256, var_1_30=-128, var_1_33=0, var_1_34=-10, var_1_35=-16, var_1_37=-10, var_1_38=16, var_1_39=4, var_1_3=9, var_1_5=36, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L167] CALL assume_abort_if_not(var_1_16 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=5, last_1_var_1_15=25, var_1_10=128, var_1_11=5, var_1_12=-2, var_1_13=0, var_1_14=0, var_1_15=25, var_1_16=3, var_1_17=0, var_1_18=-16, var_1_19=111/40, var_1_1=0, var_1_20=2381110720, var_1_21=20000000000001/2, var_1_22=1, var_1_24=0, var_1_25=256, var_1_30=-128, var_1_33=0, var_1_34=-10, var_1_35=-16, var_1_37=-10, var_1_38=16, var_1_39=4, var_1_3=9, var_1_5=36, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L167] RET assume_abort_if_not(var_1_16 <= 63) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=5, last_1_var_1_15=25, var_1_10=128, var_1_11=5, var_1_12=-2, var_1_13=0, var_1_14=0, var_1_15=25, var_1_16=3, var_1_17=0, var_1_18=-16, var_1_19=111/40, var_1_1=0, var_1_20=2381110720, var_1_21=20000000000001/2, var_1_22=1, var_1_24=0, var_1_25=256, var_1_30=-128, var_1_33=0, var_1_34=-10, var_1_35=-16, var_1_37=-10, var_1_38=16, var_1_39=4, var_1_3=9, var_1_5=36, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L168] var_1_17 = __VERIFIER_nondet_char() [L169] CALL assume_abort_if_not(var_1_17 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=5, last_1_var_1_15=25, var_1_10=128, var_1_11=5, var_1_12=-2, var_1_13=0, var_1_14=0, var_1_15=25, var_1_16=3, var_1_17=61, var_1_18=-16, var_1_19=111/40, var_1_1=0, var_1_20=2381110720, var_1_21=20000000000001/2, var_1_22=1, var_1_24=0, var_1_25=256, var_1_30=-128, var_1_33=0, var_1_34=-10, var_1_35=-16, var_1_37=-10, var_1_38=16, var_1_39=4, var_1_3=9, var_1_5=36, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L169] RET assume_abort_if_not(var_1_17 >= 0) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=5, last_1_var_1_15=25, var_1_10=128, var_1_11=5, var_1_12=-2, var_1_13=0, var_1_14=0, var_1_15=25, var_1_16=3, var_1_17=61, var_1_18=-16, var_1_19=111/40, var_1_1=0, var_1_20=2381110720, var_1_21=20000000000001/2, var_1_22=1, var_1_24=0, var_1_25=256, var_1_30=-128, var_1_33=0, var_1_34=-10, var_1_35=-16, var_1_37=-10, var_1_38=16, var_1_39=4, var_1_3=9, var_1_5=36, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L170] CALL assume_abort_if_not(var_1_17 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=5, last_1_var_1_15=25, var_1_10=128, var_1_11=5, var_1_12=-2, var_1_13=0, var_1_14=0, var_1_15=25, var_1_16=3, var_1_17=61, var_1_18=-16, var_1_19=111/40, var_1_1=0, var_1_20=2381110720, var_1_21=20000000000001/2, var_1_22=1, var_1_24=0, var_1_25=256, var_1_30=-128, var_1_33=0, var_1_34=-10, var_1_35=-16, var_1_37=-10, var_1_38=16, var_1_39=4, var_1_3=9, var_1_5=36, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L170] RET assume_abort_if_not(var_1_17 <= 126) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=5, last_1_var_1_15=25, var_1_10=128, var_1_11=5, var_1_12=-2, var_1_13=0, var_1_14=0, var_1_15=25, var_1_16=3, var_1_17=61, var_1_18=-16, var_1_19=111/40, var_1_1=0, var_1_20=2381110720, var_1_21=20000000000001/2, var_1_22=1, var_1_24=0, var_1_25=256, var_1_30=-128, var_1_33=0, var_1_34=-10, var_1_35=-16, var_1_37=-10, var_1_38=16, var_1_39=4, var_1_3=9, var_1_5=36, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L171] var_1_20 = __VERIFIER_nondet_ulong() [L172] CALL assume_abort_if_not(var_1_20 >= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=5, last_1_var_1_15=25, var_1_10=128, var_1_11=5, var_1_12=-2, var_1_13=0, var_1_14=0, var_1_15=25, var_1_16=3, var_1_17=61, var_1_18=-16, var_1_19=111/40, var_1_1=0, var_1_20=2147483647, var_1_21=20000000000001/2, var_1_22=1, var_1_24=0, var_1_25=256, var_1_30=-128, var_1_33=0, var_1_34=-10, var_1_35=-16, var_1_37=-10, var_1_38=16, var_1_39=4, var_1_3=9, var_1_5=36, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L172] RET assume_abort_if_not(var_1_20 >= 2147483647) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=5, last_1_var_1_15=25, var_1_10=128, var_1_11=5, var_1_12=-2, var_1_13=0, var_1_14=0, var_1_15=25, var_1_16=3, var_1_17=61, var_1_18=-16, var_1_19=111/40, var_1_1=0, var_1_20=2147483647, var_1_21=20000000000001/2, var_1_22=1, var_1_24=0, var_1_25=256, var_1_30=-128, var_1_33=0, var_1_34=-10, var_1_35=-16, var_1_37=-10, var_1_38=16, var_1_39=4, var_1_3=9, var_1_5=36, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L173] CALL assume_abort_if_not(var_1_20 <= 4294967295) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=5, last_1_var_1_15=25, var_1_10=128, var_1_11=5, var_1_12=-2, var_1_13=0, var_1_14=0, var_1_15=25, var_1_16=3, var_1_17=61, var_1_18=-16, var_1_19=111/40, var_1_1=0, var_1_20=2147483647, var_1_21=20000000000001/2, var_1_22=1, var_1_24=0, var_1_25=256, var_1_30=-128, var_1_33=0, var_1_34=-10, var_1_35=-16, var_1_37=-10, var_1_38=16, var_1_39=4, var_1_3=9, var_1_5=36, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L173] RET assume_abort_if_not(var_1_20 <= 4294967295) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=5, last_1_var_1_15=25, var_1_10=128, var_1_11=5, var_1_12=-2, var_1_13=0, var_1_14=0, var_1_15=25, var_1_16=3, var_1_17=61, var_1_18=-16, var_1_19=111/40, var_1_1=0, var_1_20=2147483647, var_1_21=20000000000001/2, var_1_22=1, var_1_24=0, var_1_25=256, var_1_30=-128, var_1_33=0, var_1_34=-10, var_1_35=-16, var_1_37=-10, var_1_38=16, var_1_39=4, var_1_3=9, var_1_5=36, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L174] var_1_21 = __VERIFIER_nondet_float() [L175] CALL assume_abort_if_not((var_1_21 >= -922337.2036854765600e+13F && var_1_21 <= -1.0e-20F) || (var_1_21 <= 9223372.036854765600e+12F && var_1_21 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=5, last_1_var_1_15=25, var_1_10=128, var_1_11=5, var_1_12=-2, var_1_13=0, var_1_14=0, var_1_15=25, var_1_16=3, var_1_17=61, var_1_18=-16, var_1_19=111/40, var_1_1=0, var_1_20=2147483647, var_1_21=2, var_1_22=1, var_1_24=0, var_1_25=256, var_1_30=-128, var_1_33=0, var_1_34=-10, var_1_35=-16, var_1_37=-10, var_1_38=16, var_1_39=4, var_1_3=9, var_1_5=36, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L175] RET assume_abort_if_not((var_1_21 >= -922337.2036854765600e+13F && var_1_21 <= -1.0e-20F) || (var_1_21 <= 9223372.036854765600e+12F && var_1_21 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=5, last_1_var_1_15=25, var_1_10=128, var_1_11=5, var_1_12=-2, var_1_13=0, var_1_14=0, var_1_15=25, var_1_16=3, var_1_17=61, var_1_18=-16, var_1_19=111/40, var_1_1=0, var_1_20=2147483647, var_1_21=2, var_1_22=1, var_1_24=0, var_1_25=256, var_1_30=-128, var_1_33=0, var_1_34=-10, var_1_35=-16, var_1_37=-10, var_1_38=16, var_1_39=4, var_1_3=9, var_1_5=36, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L176] var_1_24 = __VERIFIER_nondet_uchar() [L177] CALL assume_abort_if_not(var_1_24 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=5, last_1_var_1_15=25, var_1_10=128, var_1_11=5, var_1_12=-2, var_1_13=0, var_1_14=0, var_1_15=25, var_1_16=3, var_1_17=61, var_1_18=-16, var_1_19=111/40, var_1_1=0, var_1_20=2147483647, var_1_21=2, var_1_22=1, var_1_24=0, var_1_25=256, var_1_30=-128, var_1_33=0, var_1_34=-10, var_1_35=-16, var_1_37=-10, var_1_38=16, var_1_39=4, var_1_3=9, var_1_5=36, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L177] RET assume_abort_if_not(var_1_24 >= 0) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=5, last_1_var_1_15=25, var_1_10=128, var_1_11=5, var_1_12=-2, var_1_13=0, var_1_14=0, var_1_15=25, var_1_16=3, var_1_17=61, var_1_18=-16, var_1_19=111/40, var_1_1=0, var_1_20=2147483647, var_1_21=2, var_1_22=1, var_1_24=0, var_1_25=256, var_1_30=-128, var_1_33=0, var_1_34=-10, var_1_35=-16, var_1_37=-10, var_1_38=16, var_1_39=4, var_1_3=9, var_1_5=36, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L178] CALL assume_abort_if_not(var_1_24 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=5, last_1_var_1_15=25, var_1_10=128, var_1_11=5, var_1_12=-2, var_1_13=0, var_1_14=0, var_1_15=25, var_1_16=3, var_1_17=61, var_1_18=-16, var_1_19=111/40, var_1_1=0, var_1_20=2147483647, var_1_21=2, var_1_22=1, var_1_24=0, var_1_25=256, var_1_30=-128, var_1_33=0, var_1_34=-10, var_1_35=-16, var_1_37=-10, var_1_38=16, var_1_39=4, var_1_3=9, var_1_5=36, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L178] RET assume_abort_if_not(var_1_24 <= 0) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=5, last_1_var_1_15=25, var_1_10=128, var_1_11=5, var_1_12=-2, var_1_13=0, var_1_14=0, var_1_15=25, var_1_16=3, var_1_17=61, var_1_18=-16, var_1_19=111/40, var_1_1=0, var_1_20=2147483647, var_1_21=2, var_1_22=1, var_1_24=0, var_1_25=256, var_1_30=-128, var_1_33=0, var_1_34=-10, var_1_35=-16, var_1_37=-10, var_1_38=16, var_1_39=4, var_1_3=9, var_1_5=36, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L194] RET updateVariables() [L195] CALL step() [L57] COND TRUE (last_1_var_1_15 / var_1_3) <= 2 [L58] COND FALSE !(var_1_3 < (((((~ last_1_var_1_15)) < (last_1_var_1_10)) ? ((~ last_1_var_1_15)) : (last_1_var_1_10)))) [L61] COND FALSE !(((var_1_6 || var_1_7) && var_1_8) || var_1_9) [L64] var_1_1 = var_1_5 [L70] EXPR var_1_3 & 64 [L70] COND TRUE (~ (var_1_3 & 64)) <= var_1_17 [L71] COND FALSE !(\read(var_1_24)) [L75] COND TRUE \read(var_1_8) [L76] var_1_35 = (((((((var_1_17) < 0 ) ? -(var_1_17) : (var_1_17))) < 0 ) ? -((((var_1_17) < 0 ) ? -(var_1_17) : (var_1_17))) : ((((var_1_17) < 0 ) ? -(var_1_17) : (var_1_17))))) [L80] unsigned char stepLocal_0 = var_1_1; [L81] COND TRUE var_1_3 <= stepLocal_0 [L82] var_1_10 = ((((var_1_5) < (var_1_3)) ? (var_1_5) : (var_1_3))) [L84] var_1_37 = var_1_16 [L85] var_1_38 = var_1_16 [L86] var_1_12 = ((((var_1_13) < (var_1_14)) ? (var_1_13) : (var_1_14))) [L87] COND FALSE !(\read(var_1_7)) [L90] var_1_39 = var_1_3 [L91] signed char stepLocal_2 = var_1_16; [L92] COND TRUE stepLocal_2 <= ((((var_1_13) > (var_1_3)) ? (var_1_13) : (var_1_3))) [L93] var_1_18 = (((((64 - var_1_16)) > (var_1_17)) ? ((64 - var_1_16)) : (var_1_17))) [L97] COND TRUE 100000000u < (((((4160981528u) < (var_1_20)) ? (4160981528u) : (var_1_20))) - var_1_15) [L98] COND TRUE var_1_20 > 1u [L99] COND FALSE !(\read(var_1_9)) [L102] var_1_19 = var_1_21 [L108] COND TRUE 256 != var_1_13 [L109] var_1_22 = ((! 1) || var_1_24) [L111] COND TRUE (var_1_14 / var_1_3) <= var_1_17 [L112] COND TRUE (~ (var_1_17 - var_1_16)) < var_1_17 [L113] EXPR var_1_16 & var_1_17 [L113] COND FALSE !(((10 + var_1_17) <= (var_1_16 & var_1_17)) || var_1_9) [L120] EXPR var_1_3 ^ (~ var_1_5) [L120] COND TRUE var_1_5 > (var_1_3 ^ (~ var_1_5)) [L121] var_1_30 = (var_1_17 - var_1_17) [L125] signed long int stepLocal_1 = ((((var_1_15) < (var_1_10)) ? (var_1_15) : (var_1_10))) + var_1_5; [L126] COND FALSE !(last_1_var_1_11 >= stepLocal_1) [L129] COND TRUE \read(var_1_8) [L130] var_1_11 = var_1_3 [L133] COND FALSE !((var_1_5 / var_1_3) <= var_1_16) [L136] var_1_33 = (((((((var_1_16) < 0 ) ? -(var_1_16) : (var_1_16))) < 0 ) ? -((((var_1_16) < 0 ) ? -(var_1_16) : (var_1_16))) : ((((var_1_16) < 0 ) ? -(var_1_16) : (var_1_16))))) [L195] RET step() [L196] CALL, EXPR property() [L186-L187] return ((((((((last_1_var_1_15 / var_1_3) <= 2) ? ((var_1_3 < (((((~ last_1_var_1_15)) < (last_1_var_1_10)) ? ((~ last_1_var_1_15)) : (last_1_var_1_10)))) ? (var_1_1 == ((unsigned char) ((((var_1_5) < (16)) ? (var_1_5) : (16))))) : ((((var_1_6 || var_1_7) && var_1_8) || var_1_9) ? (var_1_1 == ((unsigned char) var_1_5)) : (var_1_1 == ((unsigned char) var_1_5)))) : (var_1_1 == ((unsigned char) var_1_5))) && ((var_1_3 <= var_1_1) ? (var_1_10 == ((signed short int) ((((var_1_5) < (var_1_3)) ? (var_1_5) : (var_1_3))))) : 1)) && ((last_1_var_1_11 >= (((((var_1_15) < (var_1_10)) ? (var_1_15) : (var_1_10))) + var_1_5)) ? (var_1_11 == ((signed short int) ((var_1_5 + var_1_15) + var_1_3))) : (var_1_8 ? (var_1_11 == ((signed short int) var_1_3)) : 1))) && (var_1_12 == ((signed char) ((((var_1_13) < (var_1_14)) ? (var_1_13) : (var_1_14)))))) && (var_1_7 ? (var_1_15 == ((signed char) (((((32) < ((16 + var_1_16))) ? (32) : ((16 + var_1_16)))) - var_1_17))) : 1)) && ((var_1_16 <= ((((var_1_13) > (var_1_3)) ? (var_1_13) : (var_1_3)))) ? (var_1_18 == ((signed long int) (((((64 - var_1_16)) > (var_1_17)) ? ((64 - var_1_16)) : (var_1_17))))) : (var_1_18 == ((signed long int) 4)))) && ((100000000u < (((((4160981528u) < (var_1_20)) ? (4160981528u) : (var_1_20))) - var_1_15)) ? ((var_1_20 > 1u) ? (var_1_9 ? (var_1_19 == ((float) var_1_21)) : (var_1_19 == ((float) var_1_21))) : (var_1_19 == ((float) var_1_21))) : 1) ; [L196] RET, EXPR property() [L196] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=5, last_1_var_1_15=25, var_1_10=9, var_1_11=9, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=25, var_1_16=3, var_1_17=61, var_1_18=61, var_1_19=2, var_1_1=36, var_1_20=2147483647, var_1_21=2, var_1_22=0, var_1_24=0, var_1_25=256, var_1_30=0, var_1_33=3, var_1_34=-10, var_1_35=61, var_1_37=3, var_1_38=3, var_1_39=9, var_1_3=9, var_1_5=36, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=5, last_1_var_1_15=25, var_1_10=9, var_1_11=9, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=25, var_1_16=3, var_1_17=61, var_1_18=61, var_1_19=2, var_1_1=36, var_1_20=2147483647, var_1_21=2, var_1_22=0, var_1_24=0, var_1_25=256, var_1_30=0, var_1_33=3, var_1_34=-10, var_1_35=61, var_1_37=3, var_1_38=3, var_1_39=9, var_1_3=9, var_1_5=36, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 48 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 1, TraceHistogramMax: 26, 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=48occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 95 NumberOfCodeBlocks, 95 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 04:09:39,863 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-58.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ --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 55551975c39567cc0af997a25b5a60ed7bf159e5142253b0ae97d8bdefe29048 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:09:42,420 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:09:42,557 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-19 04:09:42,565 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:09:42,566 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:09:42,605 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:09:42,606 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:09:42,607 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:09:42,608 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:09:42,613 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:09:42,614 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:09:42,614 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:09:42,615 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:09:42,616 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:09:42,617 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:09:42,617 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:09:42,618 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:09:42,619 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:09:42,619 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:09:42,620 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:09:42,621 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:09:42,621 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:09:42,622 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:09:42,622 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:09:42,623 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:09:42,623 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 04:09:42,624 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 04:09:42,624 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:09:42,625 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:09:42,625 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:09:42,626 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:09:42,627 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 04:09:42,627 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:09:42,627 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:09:42,628 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:09:42,628 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:09:42,628 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:09:42,629 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 04:09:42,629 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 04:09:42,630 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:09:42,630 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:09:42,631 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:09:42,631 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_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 55551975c39567cc0af997a25b5a60ed7bf159e5142253b0ae97d8bdefe29048 [2023-11-19 04:09:43,086 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:09:43,118 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:09:43,121 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:09:43,122 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:09:43,122 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:09:43,124 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-58.i [2023-11-19 04:09:46,235 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:09:46,526 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:09:46,527 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-58.i [2023-11-19 04:09:46,544 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/data/53fc71a93/4dd826e8dfac4724af16ca86e3248e38/FLAG2102d4e4e [2023-11-19 04:09:46,559 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/data/53fc71a93/4dd826e8dfac4724af16ca86e3248e38 [2023-11-19 04:09:46,562 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:09:46,563 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:09:46,565 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:09:46,565 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:09:46,570 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:09:46,571 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:09:46" (1/1) ... [2023-11-19 04:09:46,572 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6051e21b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:46, skipping insertion in model container [2023-11-19 04:09:46,573 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:09:46" (1/1) ... [2023-11-19 04:09:46,607 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:09:46,784 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_695be426-f1d4-4743-88da-d1da161174c1/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-58.i[919,932] [2023-11-19 04:09:46,898 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:09:46,922 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:09:46,943 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_695be426-f1d4-4743-88da-d1da161174c1/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-58.i[919,932] [2023-11-19 04:09:47,005 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:09:47,040 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:09:47,041 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:47 WrapperNode [2023-11-19 04:09:47,041 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:09:47,042 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:09:47,043 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:09:47,043 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:09:47,051 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:47" (1/1) ... [2023-11-19 04:09:47,080 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:47" (1/1) ... [2023-11-19 04:09:47,128 INFO L138 Inliner]: procedures = 27, calls = 39, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 184 [2023-11-19 04:09:47,130 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:09:47,131 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:09:47,131 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:09:47,131 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:09:47,141 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:47" (1/1) ... [2023-11-19 04:09:47,142 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:47" (1/1) ... [2023-11-19 04:09:47,157 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:47" (1/1) ... [2023-11-19 04:09:47,160 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:47" (1/1) ... [2023-11-19 04:09:47,178 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:47" (1/1) ... [2023-11-19 04:09:47,192 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:47" (1/1) ... [2023-11-19 04:09:47,198 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:47" (1/1) ... [2023-11-19 04:09:47,210 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:47" (1/1) ... [2023-11-19 04:09:47,220 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:09:47,221 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:09:47,227 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:09:47,227 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:09:47,228 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:47" (1/1) ... [2023-11-19 04:09:47,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:09:47,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:09:47,327 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:09:47,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:09:47,387 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:09:47,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 04:09:47,388 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 04:09:47,388 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 04:09:47,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:09:47,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:09:47,520 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:09:47,522 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:09:48,017 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:09:48,032 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:09:48,032 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:09:48,038 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:09:48 BoogieIcfgContainer [2023-11-19 04:09:48,038 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:09:48,042 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:09:48,042 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:09:48,046 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:09:48,046 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:09:46" (1/3) ... [2023-11-19 04:09:48,047 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12044e0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:09:48, skipping insertion in model container [2023-11-19 04:09:48,047 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:47" (2/3) ... [2023-11-19 04:09:48,049 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12044e0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:09:48, skipping insertion in model container [2023-11-19 04:09:48,049 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:09:48" (3/3) ... [2023-11-19 04:09:48,051 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-ci_file-58.i [2023-11-19 04:09:48,071 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:09:48,072 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:09:48,132 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:09:48,139 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;@c343e8f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:09:48,139 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:09:48,145 INFO L276 IsEmpty]: Start isEmpty. Operand has 82 states, 53 states have (on average 1.471698113207547) internal successors, (78), 54 states have internal predecessors, (78), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-19 04:09:48,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-11-19 04:09:48,162 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:09:48,163 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:09:48,164 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:09:48,183 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:09:48,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1492315434, now seen corresponding path program 1 times [2023-11-19 04:09:48,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:09:48,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [365214848] [2023-11-19 04:09:48,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:09:48,204 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:09:48,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:09:48,211 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:09:48,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-19 04:09:48,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:09:48,603 INFO L262 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 04:09:48,618 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:09:48,677 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 554 proven. 0 refuted. 0 times theorem prover too weak. 746 trivial. 0 not checked. [2023-11-19 04:09:48,677 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:09:48,678 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:09:48,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [365214848] [2023-11-19 04:09:48,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [365214848] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:09:48,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:09:48,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:09:48,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419827145] [2023-11-19 04:09:48,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:09:48,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 04:09:48,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:09:48,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 04:09:48,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:09:48,720 INFO L87 Difference]: Start difference. First operand has 82 states, 53 states have (on average 1.471698113207547) internal successors, (78), 54 states have internal predecessors, (78), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-11-19 04:09:48,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:09:48,758 INFO L93 Difference]: Finished difference Result 157 states and 280 transitions. [2023-11-19 04:09:48,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 04:09:48,760 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 168 [2023-11-19 04:09:48,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:09:48,769 INFO L225 Difference]: With dead ends: 157 [2023-11-19 04:09:48,769 INFO L226 Difference]: Without dead ends: 78 [2023-11-19 04:09:48,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:09:48,780 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:09:48,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 04:09:48,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2023-11-19 04:09:48,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2023-11-19 04:09:48,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 50 states have (on average 1.38) internal successors, (69), 50 states have internal predecessors, (69), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-19 04:09:48,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 121 transitions. [2023-11-19 04:09:48,838 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 121 transitions. Word has length 168 [2023-11-19 04:09:48,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:09:48,839 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 121 transitions. [2023-11-19 04:09:48,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-11-19 04:09:48,840 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 121 transitions. [2023-11-19 04:09:48,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-11-19 04:09:48,845 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:09:48,845 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:09:48,860 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-19 04:09:49,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:09:49,053 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:09:49,053 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:09:49,054 INFO L85 PathProgramCache]: Analyzing trace with hash -546854310, now seen corresponding path program 1 times [2023-11-19 04:09:49,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:09:49,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [171317629] [2023-11-19 04:09:49,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:09:49,055 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:09:49,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:09:49,058 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:09:49,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-19 04:09:49,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:09:49,379 INFO L262 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 04:09:49,387 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:09:49,606 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 519 proven. 18 refuted. 0 times theorem prover too weak. 763 trivial. 0 not checked. [2023-11-19 04:09:49,607 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 04:09:49,661 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:09:49,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [171317629] [2023-11-19 04:09:49,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [171317629] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 04:09:49,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1813149674] [2023-11-19 04:09:49,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:09:49,668 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:09:49,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/cvc4 [2023-11-19 04:09:49,670 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:09:49,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-19 04:09:50,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:09:50,358 INFO L262 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 04:09:50,365 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:09:50,484 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 519 proven. 18 refuted. 0 times theorem prover too weak. 763 trivial. 0 not checked. [2023-11-19 04:09:50,484 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 04:09:50,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1813149674] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 04:09:50,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [590482049] [2023-11-19 04:09:50,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:09:50,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 04:09:50,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:09:50,511 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 04:09:50,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-19 04:09:50,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:09:50,701 INFO L262 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 04:09:50,708 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:09:50,842 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 519 proven. 18 refuted. 0 times theorem prover too weak. 763 trivial. 0 not checked. [2023-11-19 04:09:50,842 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 04:09:50,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [590482049] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 04:09:50,873 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 04:09:50,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2023-11-19 04:09:50,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061421458] [2023-11-19 04:09:50,874 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 04:09:50,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:09:50,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:09:50,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:09:50,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 04:09:50,884 INFO L87 Difference]: Start difference. First operand 78 states and 121 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-11-19 04:09:51,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:09:51,434 INFO L93 Difference]: Finished difference Result 159 states and 244 transitions. [2023-11-19 04:09:51,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 04:09:51,439 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 168 [2023-11-19 04:09:51,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:09:51,442 INFO L225 Difference]: With dead ends: 159 [2023-11-19 04:09:51,442 INFO L226 Difference]: Without dead ends: 84 [2023-11-19 04:09:51,444 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 572 GetRequests, 564 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-19 04:09:51,445 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 83 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 04:09:51,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 185 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 04:09:51,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-11-19 04:09:51,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 82. [2023-11-19 04:09:51,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 53 states have (on average 1.3396226415094339) internal successors, (71), 53 states have internal predecessors, (71), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-19 04:09:51,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 123 transitions. [2023-11-19 04:09:51,467 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 123 transitions. Word has length 168 [2023-11-19 04:09:51,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:09:51,469 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 123 transitions. [2023-11-19 04:09:51,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-11-19 04:09:51,469 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 123 transitions. [2023-11-19 04:09:51,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-11-19 04:09:51,473 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:09:51,473 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:09:51,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-19 04:09:51,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-11-19 04:09:51,896 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:09:52,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:09:52,092 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:09:52,092 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:09:52,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1094623764, now seen corresponding path program 1 times [2023-11-19 04:09:52,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:09:52,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [980666661] [2023-11-19 04:09:52,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:09:52,094 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:09:52,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:09:52,095 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:09:52,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-19 04:09:52,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:09:52,404 INFO L262 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-19 04:09:52,411 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:09:56,099 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 714 proven. 90 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2023-11-19 04:09:56,100 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 04:09:59,324 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:09:59,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [980666661] [2023-11-19 04:09:59,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [980666661] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 04:09:59,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1034901171] [2023-11-19 04:09:59,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:09:59,325 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:09:59,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/cvc4 [2023-11-19 04:09:59,326 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:09:59,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-11-19 04:10:02,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:10:02,210 INFO L262 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-19 04:10:02,217 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:10:04,483 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 603 proven. 24 refuted. 0 times theorem prover too weak. 673 trivial. 0 not checked. [2023-11-19 04:10:04,484 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 04:10:06,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1034901171] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 04:10:06,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2105494524] [2023-11-19 04:10:06,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:10:06,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 04:10:06,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:10:06,953 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 04:10:06,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-19 04:10:07,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:10:07,159 INFO L262 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-19 04:10:07,165 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:10:10,276 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 714 proven. 90 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2023-11-19 04:10:10,276 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 04:10:11,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2105494524] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 04:10:11,532 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 04:10:11,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 12] total 13 [2023-11-19 04:10:11,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497530221] [2023-11-19 04:10:11,533 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 04:10:11,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-19 04:10:11,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:10:11,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-19 04:10:11,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342 [2023-11-19 04:10:11,537 INFO L87 Difference]: Start difference. First operand 82 states and 123 transitions. Second operand has 14 states, 14 states have (on average 5.071428571428571) internal successors, (71), 13 states have internal predecessors, (71), 4 states have call successors, (49), 4 states have call predecessors, (49), 6 states have return successors, (50), 4 states have call predecessors, (50), 4 states have call successors, (50) [2023-11-19 04:10:24,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:10:24,268 INFO L93 Difference]: Finished difference Result 370 states and 546 transitions. [2023-11-19 04:10:24,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-19 04:10:24,272 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.071428571428571) internal successors, (71), 13 states have internal predecessors, (71), 4 states have call successors, (49), 4 states have call predecessors, (49), 6 states have return successors, (50), 4 states have call predecessors, (50), 4 states have call successors, (50) Word has length 169 [2023-11-19 04:10:24,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:10:24,278 INFO L225 Difference]: With dead ends: 370 [2023-11-19 04:10:24,278 INFO L226 Difference]: Without dead ends: 291 [2023-11-19 04:10:24,281 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 593 GetRequests, 556 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=339, Invalid=1143, Unknown=0, NotChecked=0, Total=1482 [2023-11-19 04:10:24,282 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 428 mSDsluCounter, 674 mSDsCounter, 0 mSdLazyCounter, 822 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 755 SdHoareTripleChecker+Invalid, 927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2023-11-19 04:10:24,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 755 Invalid, 927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 822 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2023-11-19 04:10:24,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2023-11-19 04:10:24,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 202. [2023-11-19 04:10:24,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 143 states have (on average 1.3986013986013985) internal successors, (200), 143 states have internal predecessors, (200), 52 states have call successors, (52), 6 states have call predecessors, (52), 6 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2023-11-19 04:10:24,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 304 transitions. [2023-11-19 04:10:24,327 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 304 transitions. Word has length 169 [2023-11-19 04:10:24,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:10:24,328 INFO L495 AbstractCegarLoop]: Abstraction has 202 states and 304 transitions. [2023-11-19 04:10:24,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.071428571428571) internal successors, (71), 13 states have internal predecessors, (71), 4 states have call successors, (49), 4 states have call predecessors, (49), 6 states have return successors, (50), 4 states have call predecessors, (50), 4 states have call successors, (50) [2023-11-19 04:10:24,329 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 304 transitions. [2023-11-19 04:10:24,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-11-19 04:10:24,333 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:10:24,333 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:10:24,364 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-19 04:10:24,562 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/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)] Forceful destruction successful, exit code 0 [2023-11-19 04:10:24,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2023-11-19 04:10:24,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt [2023-11-19 04:10:24,958 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:10:24,959 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:10:24,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1096470806, now seen corresponding path program 1 times [2023-11-19 04:10:24,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:10:24,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [661636301] [2023-11-19 04:10:24,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:10:24,960 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:10:24,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:10:24,961 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:10:24,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_695be426-f1d4-4743-88da-d1da161174c1/bin/utaipan-verify-t7M7D8N6sZ/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 (9)] Waiting until timeout for monitored process [2023-11-19 04:10:25,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:10:25,393 INFO L262 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 34 conjunts are in the unsatisfiable core [2023-11-19 04:10:25,401 INFO L285 TraceCheckSpWp]: Computing forward predicates...