./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-16.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 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_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-16.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX --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 82fbcd39199a525399eb28d721839336007b212e1ad38780097336285e9776e8 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 01:02:22,072 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 01:02:22,165 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-12 01:02:22,171 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 01:02:22,171 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 01:02:22,197 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 01:02:22,198 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 01:02:22,198 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 01:02:22,199 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 01:02:22,200 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 01:02:22,200 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 01:02:22,201 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 01:02:22,201 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 01:02:22,202 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 01:02:22,203 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 01:02:22,203 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 01:02:22,204 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 01:02:22,204 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 01:02:22,205 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 01:02:22,206 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 01:02:22,206 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 01:02:22,207 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 01:02:22,208 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 01:02:22,209 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 01:02:22,209 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 01:02:22,210 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 01:02:22,211 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 01:02:22,211 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 01:02:22,212 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 01:02:22,212 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 01:02:22,213 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 01:02:22,213 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 01:02:22,214 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 01:02:22,215 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 01:02:22,215 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 01:02:22,216 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 01:02:22,216 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 01:02:22,217 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 01:02:22,217 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 01:02:22,217 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 01:02:22,218 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 01:02:22,219 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 01:02:22,219 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 01:02:22,219 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 01:02:22,220 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 01:02:22,220 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_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 82fbcd39199a525399eb28d721839336007b212e1ad38780097336285e9776e8 [2023-11-12 01:02:22,456 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 01:02:22,479 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 01:02:22,482 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 01:02:22,483 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 01:02:22,484 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 01:02:22,485 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-16.i [2023-11-12 01:02:25,575 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 01:02:25,888 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 01:02:25,889 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-16.i [2023-11-12 01:02:25,904 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX/data/ad677b7bc/c7edabada1a74e41a71323ba90a60171/FLAG29169e6e4 [2023-11-12 01:02:25,923 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX/data/ad677b7bc/c7edabada1a74e41a71323ba90a60171 [2023-11-12 01:02:25,928 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 01:02:25,931 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 01:02:25,933 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 01:02:25,933 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 01:02:25,939 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 01:02:25,941 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:02:25" (1/1) ... [2023-11-12 01:02:25,943 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1579ed3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:25, skipping insertion in model container [2023-11-12 01:02:25,944 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:02:25" (1/1) ... [2023-11-12 01:02:26,000 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 01:02:26,176 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_f16173c7-6b59-4800-b977-199df0e60126/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-16.i[916,929] [2023-11-12 01:02:26,265 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 01:02:26,280 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 01:02:26,300 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_f16173c7-6b59-4800-b977-199df0e60126/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-16.i[916,929] [2023-11-12 01:02:26,370 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 01:02:26,399 INFO L206 MainTranslator]: Completed translation [2023-11-12 01:02:26,399 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:26 WrapperNode [2023-11-12 01:02:26,399 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 01:02:26,401 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 01:02:26,402 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 01:02:26,403 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 01:02:26,411 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:26" (1/1) ... [2023-11-12 01:02:26,437 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:26" (1/1) ... [2023-11-12 01:02:26,504 INFO L138 Inliner]: procedures = 26, calls = 34, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 240 [2023-11-12 01:02:26,505 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 01:02:26,506 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 01:02:26,507 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 01:02:26,507 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 01:02:26,517 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:26" (1/1) ... [2023-11-12 01:02:26,518 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:26" (1/1) ... [2023-11-12 01:02:26,534 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:26" (1/1) ... [2023-11-12 01:02:26,534 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:26" (1/1) ... [2023-11-12 01:02:26,556 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:26" (1/1) ... [2023-11-12 01:02:26,573 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:26" (1/1) ... [2023-11-12 01:02:26,577 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:26" (1/1) ... [2023-11-12 01:02:26,581 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:26" (1/1) ... [2023-11-12 01:02:26,599 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 01:02:26,600 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 01:02:26,600 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 01:02:26,601 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 01:02:26,602 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:26" (1/1) ... [2023-11-12 01:02:26,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 01:02:26,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 01:02:26,642 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 01:02:26,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 01:02:26,693 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 01:02:26,693 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 01:02:26,693 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 01:02:26,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 01:02:26,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 01:02:26,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 01:02:26,837 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 01:02:26,839 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 01:02:27,410 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 01:02:27,967 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 01:02:27,968 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 01:02:27,970 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 01:02:27 BoogieIcfgContainer [2023-11-12 01:02:27,971 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 01:02:27,974 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 01:02:27,975 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 01:02:27,978 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 01:02:27,978 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 01:02:25" (1/3) ... [2023-11-12 01:02:27,980 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d321dff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 01:02:27, skipping insertion in model container [2023-11-12 01:02:27,980 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:26" (2/3) ... [2023-11-12 01:02:27,981 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d321dff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 01:02:27, skipping insertion in model container [2023-11-12 01:02:27,981 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 01:02:27" (3/3) ... [2023-11-12 01:02:27,983 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-while_file-16.i [2023-11-12 01:02:28,003 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 01:02:28,005 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 01:02:28,062 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 01:02:28,070 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;@3accad30, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 01:02:28,070 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 01:02:28,077 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-12 01:02:28,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-12 01:02:28,086 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:02:28,087 INFO L195 NwaCegarLoop]: trace histogram [21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 01:02:28,087 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 01:02:28,091 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:02:28,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1991052183, now seen corresponding path program 1 times [2023-11-12 01:02:28,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:02:28,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477316225] [2023-11-12 01:02:28,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:02:28,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:02:28,340 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 01:02:28,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [70436698] [2023-11-12 01:02:28,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:02:28,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 01:02:28,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 01:02:28,350 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 01:02:28,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 01:02:28,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 01:02:28,728 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 01:02:28,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 01:02:29,096 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-12 01:02:29,098 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 01:02:29,100 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 01:02:29,115 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 01:02:29,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-12 01:02:29,314 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-12 01:02:29,318 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 01:02:29,419 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 01:02:29 BoogieIcfgContainer [2023-11-12 01:02:29,419 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 01:02:29,420 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 01:02:29,420 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 01:02:29,420 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 01:02:29,421 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 01:02:27" (3/4) ... [2023-11-12 01:02:29,423 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 01:02:29,424 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 01:02:29,425 INFO L158 Benchmark]: Toolchain (without parser) took 3493.79ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 120.3MB in the beginning and 87.1MB in the end (delta: 33.2MB). Peak memory consumption was 68.3MB. Max. memory is 16.1GB. [2023-11-12 01:02:29,426 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 117.4MB. Free memory is still 68.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 01:02:29,427 INFO L158 Benchmark]: CACSL2BoogieTranslator took 467.19ms. Allocated memory is still 167.8MB. Free memory was 120.3MB in the beginning and 104.1MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-12 01:02:29,427 INFO L158 Benchmark]: Boogie Procedure Inliner took 104.25ms. Allocated memory is still 167.8MB. Free memory was 104.1MB in the beginning and 99.0MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 01:02:29,428 INFO L158 Benchmark]: Boogie Preprocessor took 93.42ms. Allocated memory is still 167.8MB. Free memory was 99.0MB in the beginning and 96.6MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 01:02:29,429 INFO L158 Benchmark]: RCFGBuilder took 1370.47ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 96.6MB in the beginning and 140.5MB in the end (delta: -43.9MB). Peak memory consumption was 41.6MB. Max. memory is 16.1GB. [2023-11-12 01:02:29,429 INFO L158 Benchmark]: TraceAbstraction took 1444.84ms. Allocated memory is still 201.3MB. Free memory was 139.5MB in the beginning and 87.1MB in the end (delta: 52.4MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. [2023-11-12 01:02:29,430 INFO L158 Benchmark]: Witness Printer took 4.41ms. Allocated memory is still 201.3MB. Free memory is still 87.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 01:02:29,433 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 117.4MB. Free memory is still 68.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 467.19ms. Allocated memory is still 167.8MB. Free memory was 120.3MB in the beginning and 104.1MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 104.25ms. Allocated memory is still 167.8MB. Free memory was 104.1MB in the beginning and 99.0MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 93.42ms. Allocated memory is still 167.8MB. Free memory was 99.0MB in the beginning and 96.6MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1370.47ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 96.6MB in the beginning and 140.5MB in the end (delta: -43.9MB). Peak memory consumption was 41.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1444.84ms. Allocated memory is still 201.3MB. Free memory was 139.5MB in the beginning and 87.1MB in the end (delta: 52.4MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. * Witness Printer took 4.41ms. Allocated memory is still 201.3MB. Free memory is still 87.1MB. 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 66, overapproximation of bitwiseAnd at line 112, overapproximation of someBinaryDOUBLEComparisonOperation at line 94, overapproximation of someUnaryFLOAToperation at line 89. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed short int var_1_1 = 2; [L23] signed char var_1_7 = -25; [L24] signed char var_1_9 = 50; [L25] signed char var_1_10 = -128; [L26] signed char var_1_11 = 0; [L27] signed char var_1_12 = -32; [L28] signed long int var_1_13 = 16; [L29] unsigned char var_1_14 = 1; [L30] unsigned long int var_1_15 = 16; [L31] unsigned char var_1_18 = 0; [L32] unsigned char var_1_19 = 0; [L33] unsigned char var_1_20 = 0; [L34] float var_1_21 = 127.25; [L35] float var_1_23 = 1.5; [L36] float var_1_24 = 100.5; [L37] signed char var_1_25 = 0; [L38] signed char var_1_26 = -2; [L39] signed char var_1_27 = 0; [L40] signed long int var_1_28 = -128; [L41] float var_1_30 = 9.375; [L42] double var_1_31 = 99999999.875; [L43] double var_1_32 = 4.8; [L44] unsigned short int var_1_33 = 0; [L45] unsigned short int var_1_35 = 54252; [L46] unsigned short int var_1_37 = 5; [L47] unsigned char var_1_38 = 4; [L48] signed char var_1_39 = -64; [L49] signed char last_1_var_1_10 = -128; [L50] unsigned char last_1_var_1_18 = 0; [L51] signed char last_1_var_1_25 = 0; [L52] unsigned short int last_1_var_1_33 = 0; [L53] signed char last_1_var_1_39 = -64; [L183] isInitial = 1 [L184] FCALL initially() [L185] COND TRUE 1 [L186] CALL updateLastVariables() [L172] last_1_var_1_10 = var_1_10 [L173] last_1_var_1_18 = var_1_18 [L174] last_1_var_1_25 = var_1_25 [L175] last_1_var_1_33 = var_1_33 [L176] last_1_var_1_39 = var_1_39 [L186] RET updateLastVariables() [L187] CALL updateVariables() [L137] var_1_9 = __VERIFIER_nondet_char() [L138] CALL assume_abort_if_not(var_1_9 >= -127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=0, var_1_12=-32, var_1_13=16, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_23=3/2, var_1_24=201/2, var_1_25=0, var_1_26=-2, var_1_27=0, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L20] COND FALSE !(!cond) [L138] RET assume_abort_if_not(var_1_9 >= -127) VAL [isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=0, var_1_12=-32, var_1_13=16, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_23=3/2, var_1_24=201/2, var_1_25=0, var_1_26=-2, var_1_27=0, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L139] CALL assume_abort_if_not(var_1_9 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=0, var_1_12=-32, var_1_13=16, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_23=3/2, var_1_24=201/2, var_1_25=0, var_1_26=-2, var_1_27=0, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L20] COND FALSE !(!cond) [L139] RET assume_abort_if_not(var_1_9 <= 126) VAL [isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=0, var_1_12=-32, var_1_13=16, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_23=3/2, var_1_24=201/2, var_1_25=0, var_1_26=-2, var_1_27=0, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L140] var_1_11 = __VERIFIER_nondet_char() [L141] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=0, var_1_12=-32, var_1_13=16, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_23=3/2, var_1_24=201/2, var_1_25=0, var_1_26=-2, var_1_27=0, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L20] COND FALSE !(!cond) [L141] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=0, var_1_12=-32, var_1_13=16, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_23=3/2, var_1_24=201/2, var_1_25=0, var_1_26=-2, var_1_27=0, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L142] CALL assume_abort_if_not(var_1_11 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=0, var_1_12=-32, var_1_13=16, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_23=3/2, var_1_24=201/2, var_1_25=0, var_1_26=-2, var_1_27=0, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L20] COND FALSE !(!cond) [L142] RET assume_abort_if_not(var_1_11 <= 126) VAL [isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=0, var_1_12=-32, var_1_13=16, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_23=3/2, var_1_24=201/2, var_1_25=0, var_1_26=-2, var_1_27=0, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L143] var_1_13 = __VERIFIER_nondet_long() [L144] CALL assume_abort_if_not(var_1_13 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=0, var_1_12=-32, var_1_13=2, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_23=3/2, var_1_24=201/2, var_1_25=0, var_1_26=-2, var_1_27=0, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L20] COND FALSE !(!cond) [L144] RET assume_abort_if_not(var_1_13 >= -2147483648) VAL [isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=0, var_1_12=-32, var_1_13=2, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_23=3/2, var_1_24=201/2, var_1_25=0, var_1_26=-2, var_1_27=0, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L145] CALL assume_abort_if_not(var_1_13 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=0, var_1_12=-32, var_1_13=2, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_23=3/2, var_1_24=201/2, var_1_25=0, var_1_26=-2, var_1_27=0, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L20] COND FALSE !(!cond) [L145] RET assume_abort_if_not(var_1_13 <= 2147483647) VAL [isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=0, var_1_12=-32, var_1_13=2, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_23=3/2, var_1_24=201/2, var_1_25=0, var_1_26=-2, var_1_27=0, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L146] CALL assume_abort_if_not(var_1_13 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=0, var_1_12=-32, var_1_13=2, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_23=3/2, var_1_24=201/2, var_1_25=0, var_1_26=-2, var_1_27=0, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L20] COND FALSE !(!cond) [L146] RET assume_abort_if_not(var_1_13 != 0) VAL [isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=0, var_1_12=-32, var_1_13=2, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_23=3/2, var_1_24=201/2, var_1_25=0, var_1_26=-2, var_1_27=0, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L147] var_1_19 = __VERIFIER_nondet_uchar() [L148] CALL assume_abort_if_not(var_1_19 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=0, var_1_12=-32, var_1_13=2, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_23=3/2, var_1_24=201/2, var_1_25=0, var_1_26=-2, var_1_27=0, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L20] COND FALSE !(!cond) [L148] RET assume_abort_if_not(var_1_19 >= 0) VAL [isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=0, var_1_12=-32, var_1_13=2, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_23=3/2, var_1_24=201/2, var_1_25=0, var_1_26=-2, var_1_27=0, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L149] CALL assume_abort_if_not(var_1_19 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=0, var_1_12=-32, var_1_13=2, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_23=3/2, var_1_24=201/2, var_1_25=0, var_1_26=-2, var_1_27=0, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L20] COND FALSE !(!cond) [L149] RET assume_abort_if_not(var_1_19 <= 0) VAL [isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=0, var_1_12=-32, var_1_13=2, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_23=3/2, var_1_24=201/2, var_1_25=0, var_1_26=-2, var_1_27=0, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L150] var_1_20 = __VERIFIER_nondet_uchar() [L151] CALL assume_abort_if_not(var_1_20 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=0, var_1_12=-32, var_1_13=2, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_23=3/2, var_1_24=201/2, var_1_25=0, var_1_26=-2, var_1_27=0, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L20] COND FALSE !(!cond) [L151] RET assume_abort_if_not(var_1_20 >= 0) VAL [isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=0, var_1_12=-32, var_1_13=2, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_23=3/2, var_1_24=201/2, var_1_25=0, var_1_26=-2, var_1_27=0, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L152] CALL assume_abort_if_not(var_1_20 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=0, var_1_12=-32, var_1_13=2, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_23=3/2, var_1_24=201/2, var_1_25=0, var_1_26=-2, var_1_27=0, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L20] COND FALSE !(!cond) [L152] RET assume_abort_if_not(var_1_20 <= 0) VAL [isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=0, var_1_12=-32, var_1_13=2, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_23=3/2, var_1_24=201/2, var_1_25=0, var_1_26=-2, var_1_27=0, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L153] var_1_23 = __VERIFIER_nondet_float() [L154] CALL assume_abort_if_not((var_1_23 >= -922337.2036854765600e+13F && var_1_23 <= -1.0e-20F) || (var_1_23 <= 9223372.036854765600e+12F && var_1_23 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=0, var_1_12=-32, var_1_13=2, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_23=2, var_1_24=201/2, var_1_25=0, var_1_26=-2, var_1_27=0, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L20] COND FALSE !(!cond) [L154] RET assume_abort_if_not((var_1_23 >= -922337.2036854765600e+13F && var_1_23 <= -1.0e-20F) || (var_1_23 <= 9223372.036854765600e+12F && var_1_23 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=0, var_1_12=-32, var_1_13=2, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_23=2, var_1_24=201/2, var_1_25=0, var_1_26=-2, var_1_27=0, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L155] var_1_24 = __VERIFIER_nondet_float() [L156] CALL assume_abort_if_not((var_1_24 >= -922337.2036854765600e+13F && var_1_24 <= -1.0e-20F) || (var_1_24 <= 9223372.036854765600e+12F && var_1_24 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=0, var_1_12=-32, var_1_13=2, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_23=2, var_1_24=5, var_1_25=0, var_1_26=-2, var_1_27=0, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L20] COND FALSE !(!cond) [L156] RET assume_abort_if_not((var_1_24 >= -922337.2036854765600e+13F && var_1_24 <= -1.0e-20F) || (var_1_24 <= 9223372.036854765600e+12F && var_1_24 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=0, var_1_12=-32, var_1_13=2, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_23=2, var_1_24=5, var_1_25=0, var_1_26=-2, var_1_27=0, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L157] var_1_26 = __VERIFIER_nondet_char() [L158] CALL assume_abort_if_not(var_1_26 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=0, var_1_12=-32, var_1_13=2, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_23=2, var_1_24=5, var_1_25=0, var_1_26=-63, var_1_27=0, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L20] COND FALSE !(!cond) [L158] RET assume_abort_if_not(var_1_26 >= -63) VAL [isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=0, var_1_12=-32, var_1_13=2, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_23=2, var_1_24=5, var_1_25=0, var_1_26=-63, var_1_27=0, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L159] CALL assume_abort_if_not(var_1_26 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=0, var_1_12=-32, var_1_13=2, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_23=2, var_1_24=5, var_1_25=0, var_1_26=-63, var_1_27=0, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L20] COND FALSE !(!cond) [L159] RET assume_abort_if_not(var_1_26 <= 63) VAL [isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=0, var_1_12=-32, var_1_13=2, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_23=2, var_1_24=5, var_1_25=0, var_1_26=-63, var_1_27=0, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L160] var_1_27 = __VERIFIER_nondet_char() [L161] CALL assume_abort_if_not(var_1_27 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=0, var_1_12=-32, var_1_13=2, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_23=2, var_1_24=5, var_1_25=0, var_1_26=-63, var_1_27=63, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L20] COND FALSE !(!cond) [L161] RET assume_abort_if_not(var_1_27 >= -63) VAL [isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=0, var_1_12=-32, var_1_13=2, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_23=2, var_1_24=5, var_1_25=0, var_1_26=-63, var_1_27=63, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L162] CALL assume_abort_if_not(var_1_27 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=0, var_1_12=-32, var_1_13=2, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_23=2, var_1_24=5, var_1_25=0, var_1_26=-63, var_1_27=63, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L20] COND FALSE !(!cond) [L162] RET assume_abort_if_not(var_1_27 <= 63) VAL [isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=0, var_1_12=-32, var_1_13=2, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_23=2, var_1_24=5, var_1_25=0, var_1_26=-63, var_1_27=63, var_1_28=-128, var_1_30=75/8, var_1_31=799999999/8, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L163] var_1_31 = __VERIFIER_nondet_double() [L164] CALL assume_abort_if_not((var_1_31 >= 0.0F && var_1_31 <= -1.0e-20F) || (var_1_31 <= 9223372.036854776000e+12F && var_1_31 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=0, var_1_12=-32, var_1_13=2, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_23=2, var_1_24=5, var_1_25=0, var_1_26=-63, var_1_27=63, var_1_28=-128, var_1_30=75/8, var_1_31=3, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L20] COND FALSE !(!cond) [L164] RET assume_abort_if_not((var_1_31 >= 0.0F && var_1_31 <= -1.0e-20F) || (var_1_31 <= 9223372.036854776000e+12F && var_1_31 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=0, var_1_12=-32, var_1_13=2, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_23=2, var_1_24=5, var_1_25=0, var_1_26=-63, var_1_27=63, var_1_28=-128, var_1_30=75/8, var_1_31=3, var_1_32=24/5, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L165] var_1_32 = __VERIFIER_nondet_double() [L166] CALL assume_abort_if_not((var_1_32 >= 0.0F && var_1_32 <= -1.0e-20F) || (var_1_32 <= 9223372.036854776000e+12F && var_1_32 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=0, var_1_12=-32, var_1_13=2, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_23=2, var_1_24=5, var_1_25=0, var_1_26=-63, var_1_27=63, var_1_28=-128, var_1_30=75/8, var_1_31=3, var_1_32=4, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L20] COND FALSE !(!cond) [L166] RET assume_abort_if_not((var_1_32 >= 0.0F && var_1_32 <= -1.0e-20F) || (var_1_32 <= 9223372.036854776000e+12F && var_1_32 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=0, var_1_12=-32, var_1_13=2, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_23=2, var_1_24=5, var_1_25=0, var_1_26=-63, var_1_27=63, var_1_28=-128, var_1_30=75/8, var_1_31=3, var_1_32=4, var_1_33=0, var_1_35=54252, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L167] var_1_35 = __VERIFIER_nondet_ushort() [L168] CALL assume_abort_if_not(var_1_35 >= 49150) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=0, var_1_12=-32, var_1_13=2, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_23=2, var_1_24=5, var_1_25=0, var_1_26=-63, var_1_27=63, var_1_28=-128, var_1_30=75/8, var_1_31=3, var_1_32=4, var_1_33=0, var_1_35=65534, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L20] COND FALSE !(!cond) [L168] RET assume_abort_if_not(var_1_35 >= 49150) VAL [isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=0, var_1_12=-32, var_1_13=2, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_23=2, var_1_24=5, var_1_25=0, var_1_26=-63, var_1_27=63, var_1_28=-128, var_1_30=75/8, var_1_31=3, var_1_32=4, var_1_33=0, var_1_35=65534, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L169] CALL assume_abort_if_not(var_1_35 <= 65534) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=0, var_1_12=-32, var_1_13=2, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_23=2, var_1_24=5, var_1_25=0, var_1_26=-63, var_1_27=63, var_1_28=-128, var_1_30=75/8, var_1_31=3, var_1_32=4, var_1_33=0, var_1_35=65534, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L20] COND FALSE !(!cond) [L169] RET assume_abort_if_not(var_1_35 <= 65534) VAL [isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=0, var_1_12=-32, var_1_13=2, var_1_14=1, var_1_15=16, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=0, var_1_21=509/4, var_1_23=2, var_1_24=5, var_1_25=0, var_1_26=-63, var_1_27=63, var_1_28=-128, var_1_30=75/8, var_1_31=3, var_1_32=4, var_1_33=0, var_1_35=65534, var_1_37=5, var_1_38=4, var_1_39=-64, var_1_7=-25, var_1_9=-1] [L187] RET updateVariables() [L188] CALL step() [L57] unsigned char stepLocal_3 = last_1_var_1_18; [L58] COND FALSE !(stepLocal_3 || var_1_20) [L61] COND FALSE !(\read(var_1_20)) [L65] var_1_18 = (! (var_1_19 || var_1_20)) [L66] COND TRUE (- var_1_24) < var_1_23 [L67] var_1_25 = (((((-10) < (var_1_26)) ? (-10) : (var_1_26))) + var_1_27) [L69] var_1_37 = var_1_11 [L70] var_1_38 = var_1_11 [L71] var_1_39 = var_1_11 [L72] COND TRUE \read(var_1_18) [L73] var_1_7 = var_1_9 [L75] signed char stepLocal_1 = var_1_9; [L76] COND FALSE !((last_1_var_1_10 + var_1_7) > stepLocal_1) [L79] COND TRUE (var_1_7 / var_1_13) == var_1_25 [L80] var_1_12 = var_1_9 [L88] COND TRUE (var_1_11 - var_1_37) != -256 [L89] var_1_21 = ((((((((var_1_23) < 0 ) ? -(var_1_23) : (var_1_23)))) < (var_1_24)) ? (((((var_1_23) < 0 ) ? -(var_1_23) : (var_1_23)))) : (var_1_24))) [L93] signed long int stepLocal_4 = var_1_28; [L94] COND TRUE ((var_1_31 - var_1_32) + var_1_24) != var_1_23 [L95] var_1_30 = ((((var_1_23) < (var_1_24)) ? (var_1_23) : (var_1_24))) [L101] COND TRUE var_1_28 < var_1_37 [L102] var_1_33 = (((26262 - var_1_11) + 18571) - var_1_38) [L122] signed long int stepLocal_0 = var_1_28; [L123] COND TRUE stepLocal_0 >= (var_1_37 * (10u * var_1_33)) [L124] var_1_1 = (var_1_10 + var_1_10) [L128] unsigned long int stepLocal_2 = 1u; [L129] COND FALSE !((((((var_1_13) < (25u)) ? (var_1_13) : (25u))) + var_1_33) == stepLocal_2) [L132] COND TRUE var_1_1 <= var_1_33 [L133] var_1_15 = ((((var_1_11) > (var_1_37)) ? (var_1_11) : (var_1_37))) [L188] RET step() [L189] CALL, EXPR property() [L179] EXPR ((((((((((((var_1_28 >= (var_1_37 * (10u * var_1_33))) ? (var_1_1 == ((signed short int) (var_1_10 + var_1_10))) : (var_1_1 == ((signed short int) var_1_10))) && (var_1_18 ? (var_1_7 == ((signed char) var_1_9)) : 1)) && (((last_1_var_1_10 + var_1_7) > var_1_9) ? (var_1_10 == ((signed char) (1 - var_1_11))) : 1)) && (((var_1_7 / var_1_13) == var_1_25) ? (var_1_12 == ((signed char) var_1_9)) : ((var_1_13 >= var_1_11) ? (var_1_12 == ((signed char) var_1_11)) : (var_1_12 == ((signed char) var_1_9))))) && (((((((var_1_13) < (25u)) ? (var_1_13) : (25u))) + var_1_33) == 1u) ? (var_1_14 == ((unsigned char) (! 0))) : 1)) && ((var_1_1 <= var_1_33) ? (var_1_15 == ((unsigned long int) ((((var_1_11) > (var_1_37)) ? (var_1_11) : (var_1_37))))) : 1)) && (var_1_18 == ((unsigned char) (! (var_1_19 || var_1_20))))) && (((var_1_11 - var_1_37) != -256) ? (var_1_21 == ((float) ((((((((var_1_23) < 0 ) ? -(var_1_23) : (var_1_23)))) < (var_1_24)) ? (((((var_1_23) < 0 ) ? -(var_1_23) : (var_1_23)))) : (var_1_24))))) : (var_1_21 == ((float) var_1_23)))) && (((- var_1_24) < var_1_23) ? (var_1_25 == ((signed char) (((((-10) < (var_1_26)) ? (-10) : (var_1_26))) + var_1_27))) : 1)) && ((last_1_var_1_18 || var_1_20) ? (var_1_28 == ((signed long int) (((((((((var_1_27) < 0 ) ? -(var_1_27) : (var_1_27))) - (var_1_11 + last_1_var_1_33))) > (last_1_var_1_25)) ? ((((((var_1_27) < 0 ) ? -(var_1_27) : (var_1_27))) - (var_1_11 + last_1_var_1_33))) : (last_1_var_1_25))))) : (var_1_20 ? (var_1_28 == ((signed long int) ((((last_1_var_1_33) > ((last_1_var_1_39 + last_1_var_1_25))) ? (last_1_var_1_33) : ((last_1_var_1_39 + last_1_var_1_25)))))) : 1))) && ((((var_1_31 - var_1_32) + var_1_24) != var_1_23) ? (var_1_30 == ((float) ((((var_1_23) < (var_1_24)) ? (var_1_23) : (var_1_24))))) : ((var_1_28 <= var_1_10) ? (var_1_30 == ((float) var_1_23)) : 1))) && ((var_1_28 < var_1_37) ? (var_1_33 == ((unsigned short int) (((26262 - var_1_11) + 18571) - var_1_38))) : ((! var_1_18) ? ((var_1_10 != (var_1_38 & (var_1_11 - 32))) ? (var_1_33 == ((unsigned short int) ((((((var_1_35 - var_1_11) - var_1_38)) < (var_1_38)) ? (((var_1_35 - var_1_11) - var_1_38)) : (var_1_38))))) : (var_1_33 == ((unsigned short int) (var_1_35 - var_1_38)))) : ((128u > var_1_38) ? (((var_1_38 * var_1_38) == (var_1_38 & var_1_28)) ? (var_1_33 == ((unsigned short int) var_1_11)) : (var_1_33 == ((unsigned short int) ((((((((var_1_11) > (var_1_35)) ? (var_1_11) : (var_1_35)))) < (var_1_38)) ? (((((var_1_11) > (var_1_35)) ? (var_1_11) : (var_1_35)))) : (var_1_38)))))) : (var_1_33 == ((unsigned short int) var_1_38))))) [L179-L180] return (((((((((((((((var_1_28 >= (var_1_37 * (10u * var_1_33))) ? (var_1_1 == ((signed short int) (var_1_10 + var_1_10))) : (var_1_1 == ((signed short int) var_1_10))) && (var_1_18 ? (var_1_7 == ((signed char) var_1_9)) : 1)) && (((last_1_var_1_10 + var_1_7) > var_1_9) ? (var_1_10 == ((signed char) (1 - var_1_11))) : 1)) && (((var_1_7 / var_1_13) == var_1_25) ? (var_1_12 == ((signed char) var_1_9)) : ((var_1_13 >= var_1_11) ? (var_1_12 == ((signed char) var_1_11)) : (var_1_12 == ((signed char) var_1_9))))) && (((((((var_1_13) < (25u)) ? (var_1_13) : (25u))) + var_1_33) == 1u) ? (var_1_14 == ((unsigned char) (! 0))) : 1)) && ((var_1_1 <= var_1_33) ? (var_1_15 == ((unsigned long int) ((((var_1_11) > (var_1_37)) ? (var_1_11) : (var_1_37))))) : 1)) && (var_1_18 == ((unsigned char) (! (var_1_19 || var_1_20))))) && (((var_1_11 - var_1_37) != -256) ? (var_1_21 == ((float) ((((((((var_1_23) < 0 ) ? -(var_1_23) : (var_1_23)))) < (var_1_24)) ? (((((var_1_23) < 0 ) ? -(var_1_23) : (var_1_23)))) : (var_1_24))))) : (var_1_21 == ((float) var_1_23)))) && (((- var_1_24) < var_1_23) ? (var_1_25 == ((signed char) (((((-10) < (var_1_26)) ? (-10) : (var_1_26))) + var_1_27))) : 1)) && ((last_1_var_1_18 || var_1_20) ? (var_1_28 == ((signed long int) (((((((((var_1_27) < 0 ) ? -(var_1_27) : (var_1_27))) - (var_1_11 + last_1_var_1_33))) > (last_1_var_1_25)) ? ((((((var_1_27) < 0 ) ? -(var_1_27) : (var_1_27))) - (var_1_11 + last_1_var_1_33))) : (last_1_var_1_25))))) : (var_1_20 ? (var_1_28 == ((signed long int) ((((last_1_var_1_33) > ((last_1_var_1_39 + last_1_var_1_25))) ? (last_1_var_1_33) : ((last_1_var_1_39 + last_1_var_1_25)))))) : 1))) && ((((var_1_31 - var_1_32) + var_1_24) != var_1_23) ? (var_1_30 == ((float) ((((var_1_23) < (var_1_24)) ? (var_1_23) : (var_1_24))))) : ((var_1_28 <= var_1_10) ? (var_1_30 == ((float) var_1_23)) : 1))) && ((var_1_28 < var_1_37) ? (var_1_33 == ((unsigned short int) (((26262 - var_1_11) + 18571) - var_1_38))) : ((! var_1_18) ? ((var_1_10 != (var_1_38 & (var_1_11 - 32))) ? (var_1_33 == ((unsigned short int) ((((((var_1_35 - var_1_11) - var_1_38)) < (var_1_38)) ? (((var_1_35 - var_1_11) - var_1_38)) : (var_1_38))))) : (var_1_33 == ((unsigned short int) (var_1_35 - var_1_38)))) : ((128u > var_1_38) ? (((var_1_38 * var_1_38) == (var_1_38 & var_1_28)) ? (var_1_33 == ((unsigned short int) var_1_11)) : (var_1_33 == ((unsigned short int) ((((((((var_1_11) > (var_1_35)) ? (var_1_11) : (var_1_35)))) < (var_1_38)) ? (((((var_1_11) > (var_1_35)) ? (var_1_11) : (var_1_35)))) : (var_1_38)))))) : (var_1_33 == ((unsigned short int) var_1_38)))))) && (var_1_37 == ((unsigned short int) var_1_11))) && (var_1_38 == ((unsigned char) var_1_11))) && (var_1_39 == ((signed char) var_1_11)) ; [L189] RET, EXPR property() [L189] 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_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=0, var_1_12=-1, var_1_13=2, var_1_14=1, var_1_15=0, var_1_18=1, var_1_19=0, var_1_1=-256, var_1_20=0, var_1_21=6, var_1_23=2, var_1_24=5, var_1_25=0, var_1_26=-63, var_1_27=63, var_1_28=-128, var_1_30=5, var_1_31=3, var_1_32=4, var_1_33=44833, var_1_35=65534, var_1_37=0, var_1_38=0, var_1_39=0, var_1_7=-1, var_1_9=-1] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=-128, last_1_var_1_18=0, last_1_var_1_25=0, last_1_var_1_33=0, last_1_var_1_39=-64, var_1_10=-128, var_1_11=0, var_1_12=-1, var_1_13=2, var_1_14=1, var_1_15=0, var_1_18=1, var_1_19=0, var_1_1=-256, var_1_20=0, var_1_21=6, var_1_23=2, var_1_24=5, var_1_25=0, var_1_26=-63, var_1_27=63, var_1_28=-128, var_1_30=5, var_1_31=3, var_1_32=4, var_1_33=44833, var_1_35=65534, var_1_37=0, var_1_38=0, var_1_39=0, var_1_7=-1, var_1_9=-1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 1, TraceHistogramMax: 21, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 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 [2023-11-12 01:02:29,457 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX/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_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-16.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX --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 82fbcd39199a525399eb28d721839336007b212e1ad38780097336285e9776e8 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 01:02:32,073 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 01:02:32,187 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-12 01:02:32,202 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 01:02:32,203 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 01:02:32,253 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 01:02:32,253 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 01:02:32,254 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 01:02:32,255 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 01:02:32,260 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 01:02:32,261 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 01:02:32,261 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 01:02:32,262 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 01:02:32,263 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 01:02:32,264 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 01:02:32,264 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 01:02:32,266 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 01:02:32,266 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 01:02:32,266 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 01:02:32,267 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 01:02:32,267 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 01:02:32,268 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 01:02:32,268 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 01:02:32,269 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 01:02:32,269 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 01:02:32,269 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 01:02:32,270 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 01:02:32,270 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 01:02:32,271 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 01:02:32,271 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 01:02:32,272 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 01:02:32,273 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 01:02:32,273 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 01:02:32,273 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 01:02:32,274 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 01:02:32,274 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 01:02:32,274 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 01:02:32,274 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-12 01:02:32,275 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 01:02:32,276 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 01:02:32,276 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 01:02:32,276 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 01:02:32,277 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_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 82fbcd39199a525399eb28d721839336007b212e1ad38780097336285e9776e8 [2023-11-12 01:02:32,694 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 01:02:32,714 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 01:02:32,717 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 01:02:32,718 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 01:02:32,719 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 01:02:32,720 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-16.i [2023-11-12 01:02:36,010 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 01:02:36,320 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 01:02:36,321 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-16.i [2023-11-12 01:02:36,340 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX/data/a84a36dfd/114c040b140e4d27a3eb7d1800ff0442/FLAGf5273dbca [2023-11-12 01:02:36,361 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX/data/a84a36dfd/114c040b140e4d27a3eb7d1800ff0442 [2023-11-12 01:02:36,366 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 01:02:36,368 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 01:02:36,371 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 01:02:36,371 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 01:02:36,376 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 01:02:36,379 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:02:36" (1/1) ... [2023-11-12 01:02:36,380 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@432b0451 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:36, skipping insertion in model container [2023-11-12 01:02:36,380 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:02:36" (1/1) ... [2023-11-12 01:02:36,436 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 01:02:36,603 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_f16173c7-6b59-4800-b977-199df0e60126/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-16.i[916,929] [2023-11-12 01:02:36,698 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 01:02:36,715 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 01:02:36,728 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_f16173c7-6b59-4800-b977-199df0e60126/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-16.i[916,929] [2023-11-12 01:02:36,813 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 01:02:36,848 INFO L206 MainTranslator]: Completed translation [2023-11-12 01:02:36,850 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:36 WrapperNode [2023-11-12 01:02:36,850 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 01:02:36,852 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 01:02:36,852 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 01:02:36,853 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 01:02:36,861 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:36" (1/1) ... [2023-11-12 01:02:36,876 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:36" (1/1) ... [2023-11-12 01:02:36,908 INFO L138 Inliner]: procedures = 27, calls = 34, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 177 [2023-11-12 01:02:36,909 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 01:02:36,909 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 01:02:36,910 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 01:02:36,910 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 01:02:36,919 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:36" (1/1) ... [2023-11-12 01:02:36,919 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:36" (1/1) ... [2023-11-12 01:02:36,925 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:36" (1/1) ... [2023-11-12 01:02:36,926 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:36" (1/1) ... [2023-11-12 01:02:36,940 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:36" (1/1) ... [2023-11-12 01:02:36,944 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:36" (1/1) ... [2023-11-12 01:02:36,948 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:36" (1/1) ... [2023-11-12 01:02:36,950 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:36" (1/1) ... [2023-11-12 01:02:36,955 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 01:02:36,956 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 01:02:36,956 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 01:02:36,957 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 01:02:36,958 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:36" (1/1) ... [2023-11-12 01:02:36,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 01:02:36,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 01:02:37,007 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 01:02:37,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 01:02:37,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 01:02:37,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 01:02:37,056 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 01:02:37,056 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 01:02:37,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 01:02:37,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 01:02:37,177 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 01:02:37,179 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 01:02:43,864 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 01:02:43,871 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 01:02:43,872 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 01:02:43,874 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 01:02:43 BoogieIcfgContainer [2023-11-12 01:02:43,874 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 01:02:43,877 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 01:02:43,877 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 01:02:43,880 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 01:02:43,881 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 01:02:36" (1/3) ... [2023-11-12 01:02:43,882 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57119013 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 01:02:43, skipping insertion in model container [2023-11-12 01:02:43,882 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:36" (2/3) ... [2023-11-12 01:02:43,882 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57119013 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 01:02:43, skipping insertion in model container [2023-11-12 01:02:43,882 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 01:02:43" (3/3) ... [2023-11-12 01:02:43,884 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-while_file-16.i [2023-11-12 01:02:43,902 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 01:02:43,903 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 01:02:43,953 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 01:02:43,960 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;@5fd2bd32, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 01:02:43,960 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 01:02:43,964 INFO L276 IsEmpty]: Start isEmpty. Operand has 76 states, 52 states have (on average 1.4423076923076923) internal successors, (75), 53 states have internal predecessors, (75), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-12 01:02:43,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-11-12 01:02:43,981 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:02:43,982 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 01:02:43,983 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 01:02:43,988 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:02:43,989 INFO L85 PathProgramCache]: Analyzing trace with hash -871836568, now seen corresponding path program 1 times [2023-11-12 01:02:44,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 01:02:44,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1808867068] [2023-11-12 01:02:44,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:02:44,005 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 [2023-11-12 01:02:44,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 01:02:44,014 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX/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) [2023-11-12 01:02:44,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 01:02:44,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:02:44,534 INFO L262 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-12 01:02:44,547 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 01:02:44,617 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 404 proven. 0 refuted. 0 times theorem prover too weak. 436 trivial. 0 not checked. [2023-11-12 01:02:44,617 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 01:02:44,618 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 01:02:44,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1808867068] [2023-11-12 01:02:44,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1808867068] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 01:02:44,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 01:02:44,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 01:02:44,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938293636] [2023-11-12 01:02:44,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 01:02:44,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 01:02:44,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 01:02:44,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 01:02:44,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 01:02:44,658 INFO L87 Difference]: Start difference. First operand has 76 states, 52 states have (on average 1.4423076923076923) internal successors, (75), 53 states have internal predecessors, (75), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) 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, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-12 01:02:44,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:02:44,690 INFO L93 Difference]: Finished difference Result 145 states and 249 transitions. [2023-11-12 01:02:44,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 01:02:44,692 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, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 143 [2023-11-12 01:02:44,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:02:44,701 INFO L225 Difference]: With dead ends: 145 [2023-11-12 01:02:44,701 INFO L226 Difference]: Without dead ends: 72 [2023-11-12 01:02:44,705 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 01:02:44,709 INFO L413 NwaCegarLoop]: 110 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, 110 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 [2023-11-12 01:02:44,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 01:02:44,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2023-11-12 01:02:44,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2023-11-12 01:02:44,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 49 states have (on average 1.3877551020408163) internal successors, (68), 49 states have internal predecessors, (68), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-12 01:02:44,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 110 transitions. [2023-11-12 01:02:44,765 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 110 transitions. Word has length 143 [2023-11-12 01:02:44,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 01:02:44,766 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 110 transitions. [2023-11-12 01:02:44,766 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, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-12 01:02:44,767 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 110 transitions. [2023-11-12 01:02:44,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-11-12 01:02:44,771 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:02:44,772 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 01:02:44,798 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 01:02:44,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 01:02:44,973 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 01:02:44,974 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:02:44,974 INFO L85 PathProgramCache]: Analyzing trace with hash 482563998, now seen corresponding path program 1 times [2023-11-12 01:02:44,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 01:02:44,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1888510012] [2023-11-12 01:02:44,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:02:44,976 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 [2023-11-12 01:02:44,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 01:02:44,977 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX/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) [2023-11-12 01:02:44,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 01:02:45,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:02:45,388 INFO L262 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-12 01:02:45,397 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 01:02:46,811 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 440 proven. 30 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2023-11-12 01:02:46,812 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 01:02:47,467 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 30 proven. 30 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2023-11-12 01:02:47,467 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 01:02:47,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1888510012] [2023-11-12 01:02:47,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1888510012] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 01:02:47,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1284491353] [2023-11-12 01:02:47,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:02:47,469 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-12 01:02:47,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX/cvc4 [2023-11-12 01:02:47,476 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-12 01:02:47,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-12 01:02:48,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:02:48,567 INFO L262 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-12 01:02:48,576 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 01:02:49,267 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2023-11-12 01:02:49,267 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 01:02:49,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1284491353] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 01:02:49,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-12 01:02:49,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7, 8] total 12 [2023-11-12 01:02:49,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428202088] [2023-11-12 01:02:49,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 01:02:49,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 01:02:49,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 01:02:49,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 01:02:49,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-11-12 01:02:49,271 INFO L87 Difference]: Start difference. First operand 72 states and 110 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2023-11-12 01:02:51,799 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 01:02:52,885 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 01:02:55,089 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 01:02:57,060 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 01:02:59,453 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 01:03:01,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 01:03:01,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:03:01,559 INFO L93 Difference]: Finished difference Result 365 states and 564 transitions. [2023-11-12 01:03:01,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-12 01:03:01,560 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 143 [2023-11-12 01:03:01,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:03:01,566 INFO L225 Difference]: With dead ends: 365 [2023-11-12 01:03:01,567 INFO L226 Difference]: Without dead ends: 296 [2023-11-12 01:03:01,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 435 GetRequests, 415 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=90, Invalid=330, Unknown=0, NotChecked=0, Total=420 [2023-11-12 01:03:01,570 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 442 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 71 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 442 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2023-11-12 01:03:01,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [442 Valid, 679 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 40 Invalid, 3 Unknown, 0 Unchecked, 11.9s Time] [2023-11-12 01:03:01,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2023-11-12 01:03:01,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 173. [2023-11-12 01:03:01,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 118 states have (on average 1.3728813559322033) internal successors, (162), 119 states have internal predecessors, (162), 51 states have call successors, (51), 3 states have call predecessors, (51), 3 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51) [2023-11-12 01:03:01,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 264 transitions. [2023-11-12 01:03:01,620 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 264 transitions. Word has length 143 [2023-11-12 01:03:01,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 01:03:01,622 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 264 transitions. [2023-11-12 01:03:01,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2023-11-12 01:03:01,622 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 264 transitions. [2023-11-12 01:03:01,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-11-12 01:03:01,626 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:03:01,626 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 01:03:01,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-11-12 01:03:01,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX/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)] Forceful destruction successful, exit code 0 [2023-11-12 01:03:02,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 01:03:02,035 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 01:03:02,036 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:03:02,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1105783904, now seen corresponding path program 1 times [2023-11-12 01:03:02,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 01:03:02,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1231399202] [2023-11-12 01:03:02,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:03:02,038 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 [2023-11-12 01:03:02,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 01:03:02,039 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX/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) [2023-11-12 01:03:02,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-12 01:03:02,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:03:02,503 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-12 01:03:02,508 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 01:03:03,613 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 440 proven. 30 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2023-11-12 01:03:03,614 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 01:03:04,217 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 30 proven. 30 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2023-11-12 01:03:04,217 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 01:03:04,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1231399202] [2023-11-12 01:03:04,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1231399202] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 01:03:04,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1247589059] [2023-11-12 01:03:04,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:03:04,219 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-12 01:03:04,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX/cvc4 [2023-11-12 01:03:04,222 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-12 01:03:04,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-11-12 01:03:05,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:03:05,250 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-12 01:03:05,254 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 01:03:05,904 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 168 proven. 54 refuted. 0 times theorem prover too weak. 618 trivial. 0 not checked. [2023-11-12 01:03:05,905 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 01:03:06,090 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2023-11-12 01:03:06,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1247589059] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-12 01:03:06,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-11-12 01:03:06,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7, 8, 6] total 15 [2023-11-12 01:03:06,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324725836] [2023-11-12 01:03:06,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 01:03:06,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 01:03:06,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 01:03:06,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 01:03:06,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2023-11-12 01:03:06,093 INFO L87 Difference]: Start difference. First operand 173 states and 264 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2023-11-12 01:03:08,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 01:03:08,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:03:08,310 INFO L93 Difference]: Finished difference Result 355 states and 534 transitions. [2023-11-12 01:03:08,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 01:03:08,346 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 143 [2023-11-12 01:03:08,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:03:08,351 INFO L225 Difference]: With dead ends: 355 [2023-11-12 01:03:08,351 INFO L226 Difference]: Without dead ends: 185 [2023-11-12 01:03:08,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 568 GetRequests, 554 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2023-11-12 01:03:08,356 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 46 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-12 01:03:08,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 151 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-12 01:03:08,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2023-11-12 01:03:08,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2023-11-12 01:03:08,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 127 states have (on average 1.3228346456692914) internal successors, (168), 128 states have internal predecessors, (168), 51 states have call successors, (51), 6 states have call predecessors, (51), 6 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51) [2023-11-12 01:03:08,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 270 transitions. [2023-11-12 01:03:08,415 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 270 transitions. Word has length 143 [2023-11-12 01:03:08,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 01:03:08,417 INFO L495 AbstractCegarLoop]: Abstraction has 185 states and 270 transitions. [2023-11-12 01:03:08,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2023-11-12 01:03:08,417 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 270 transitions. [2023-11-12 01:03:08,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-11-12 01:03:08,426 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:03:08,427 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 01:03:08,451 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-12 01:03:08,634 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2023-11-12 01:03:08,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt [2023-11-12 01:03:08,828 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 01:03:08,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:03:08,828 INFO L85 PathProgramCache]: Analyzing trace with hash -518977890, now seen corresponding path program 1 times [2023-11-12 01:03:08,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 01:03:08,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2146835773] [2023-11-12 01:03:08,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:03:08,830 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 [2023-11-12 01:03:08,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 01:03:08,831 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX/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) [2023-11-12 01:03:08,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX/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)] Waiting until timeout for monitored process [2023-11-12 01:03:09,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:03:09,241 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-12 01:03:09,246 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 01:03:10,384 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 440 proven. 30 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2023-11-12 01:03:10,384 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 01:03:11,003 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 30 proven. 30 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2023-11-12 01:03:11,003 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 01:03:11,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2146835773] [2023-11-12 01:03:11,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2146835773] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 01:03:11,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [726130164] [2023-11-12 01:03:11,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:03:11,005 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-12 01:03:11,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX/cvc4 [2023-11-12 01:03:11,006 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-12 01:03:11,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-11-12 01:03:12,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:03:12,193 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-12 01:03:12,199 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 01:03:13,159 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 440 proven. 30 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2023-11-12 01:03:13,159 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 01:03:13,679 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 30 proven. 30 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2023-11-12 01:03:13,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [726130164] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 01:03:13,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1954139427] [2023-11-12 01:03:13,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:03:13,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 01:03:13,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 01:03:13,684 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 01:03:13,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16173c7-6b59-4800-b977-199df0e60126/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-12 01:03:14,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:03:14,081 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-12 01:03:14,087 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 01:03:14,976 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 440 proven. 30 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2023-11-12 01:03:14,976 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 01:03:15,441 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 30 proven. 30 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2023-11-12 01:03:15,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1954139427] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 01:03:15,441 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-11-12 01:03:15,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 7, 8, 7, 8] total 10 [2023-11-12 01:03:15,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346559692] [2023-11-12 01:03:15,442 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-11-12 01:03:15,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-12 01:03:15,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 01:03:15,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-12 01:03:15,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-12 01:03:15,449 INFO L87 Difference]: Start difference. First operand 185 states and 270 transitions. Second operand has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 2 states have call successors, (42), 3 states have call predecessors, (42), 5 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2023-11-12 01:03:18,293 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 01:03:21,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []