./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-42.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-42.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0c139e9da6bc1973aeb5aa6fa63324ad1af6ba8328267ab6771924e49569b825 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:15:25,764 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:15:25,884 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 05:15:25,892 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:15:25,893 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:15:25,935 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:15:25,936 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:15:25,937 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:15:25,938 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:15:25,943 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:15:25,943 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:15:25,945 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:15:25,945 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:15:25,947 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:15:25,947 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:15:25,948 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:15:25,948 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:15:25,949 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:15:25,949 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:15:25,950 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:15:25,951 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:15:25,951 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:15:25,953 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:15:25,953 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:15:25,954 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:15:25,954 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:15:25,955 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:15:25,955 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:15:25,956 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:15:25,956 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:15:25,957 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:15:25,958 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:15:25,958 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:15:25,959 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:15:25,959 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:15:25,959 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:15:25,960 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:15:25,990 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:15:25,991 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:15:25,991 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:15:25,991 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:15:25,991 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:15:25,992 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:15:25,992 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:15:25,992 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:15:25,992 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_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c139e9da6bc1973aeb5aa6fa63324ad1af6ba8328267ab6771924e49569b825 [2023-11-19 05:15:26,334 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:15:26,367 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:15:26,370 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:15:26,371 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:15:26,372 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:15:26,374 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-42.i [2023-11-19 05:15:29,597 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:15:29,843 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:15:29,844 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-42.i [2023-11-19 05:15:29,901 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/data/76957b4b1/0cd3386618294fc6bb597b611dc36395/FLAGd8e230f05 [2023-11-19 05:15:29,923 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/data/76957b4b1/0cd3386618294fc6bb597b611dc36395 [2023-11-19 05:15:29,926 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:15:29,928 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:15:29,929 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:15:29,930 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:15:29,936 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:15:29,937 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:15:29" (1/1) ... [2023-11-19 05:15:29,938 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@768606e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:29, skipping insertion in model container [2023-11-19 05:15:29,939 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:15:29" (1/1) ... [2023-11-19 05:15:29,978 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:15:30,161 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_ea189b2f-82a9-42ad-889e-b1b0937ad53e/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-42.i[919,932] [2023-11-19 05:15:30,253 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:15:30,268 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:15:30,281 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_ea189b2f-82a9-42ad-889e-b1b0937ad53e/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-42.i[919,932] [2023-11-19 05:15:30,323 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:15:30,344 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:15:30,344 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:30 WrapperNode [2023-11-19 05:15:30,345 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:15:30,346 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:15:30,346 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:15:30,347 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:15:30,355 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:30" (1/1) ... [2023-11-19 05:15:30,370 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:30" (1/1) ... [2023-11-19 05:15:30,436 INFO L138 Inliner]: procedures = 26, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 171 [2023-11-19 05:15:30,436 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:15:30,437 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:15:30,437 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:15:30,437 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:15:30,448 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:30" (1/1) ... [2023-11-19 05:15:30,449 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:30" (1/1) ... [2023-11-19 05:15:30,454 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:30" (1/1) ... [2023-11-19 05:15:30,455 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:30" (1/1) ... [2023-11-19 05:15:30,472 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:30" (1/1) ... [2023-11-19 05:15:30,477 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:30" (1/1) ... [2023-11-19 05:15:30,480 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:30" (1/1) ... [2023-11-19 05:15:30,483 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:30" (1/1) ... [2023-11-19 05:15:30,489 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:15:30,490 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:15:30,491 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:15:30,491 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:15:30,492 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:30" (1/1) ... [2023-11-19 05:15:30,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:15:30,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:15:30,538 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:15:30,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:15:30,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:15:30,595 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:15:30,595 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:15:30,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:15:30,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:15:30,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:15:30,795 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:15:30,835 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:15:31,354 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:15:31,767 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:15:31,767 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:15:31,773 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:15:31 BoogieIcfgContainer [2023-11-19 05:15:31,773 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:15:31,776 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:15:31,776 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:15:31,780 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:15:31,781 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:15:29" (1/3) ... [2023-11-19 05:15:31,782 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a527b8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:15:31, skipping insertion in model container [2023-11-19 05:15:31,782 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:30" (2/3) ... [2023-11-19 05:15:31,785 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a527b8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:15:31, skipping insertion in model container [2023-11-19 05:15:31,786 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:15:31" (3/3) ... [2023-11-19 05:15:31,787 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-ci_file-42.i [2023-11-19 05:15:31,811 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:15:31,811 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:15:31,885 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:15:31,894 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;@4cab189d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:15:31,895 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:15:31,902 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-19 05:15:31,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-19 05:15:31,916 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:15:31,917 INFO L195 NwaCegarLoop]: trace histogram [18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:15:31,918 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:15:31,928 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:15:31,928 INFO L85 PathProgramCache]: Analyzing trace with hash 140231590, now seen corresponding path program 1 times [2023-11-19 05:15:31,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:15:31,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876691143] [2023-11-19 05:15:31,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:15:31,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:15:32,189 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 05:15:32,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1777445081] [2023-11-19 05:15:32,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:15:32,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:15:32,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:15:32,202 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:15:32,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 05:15:32,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:15:32,671 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 05:15:32,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:15:32,876 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 05:15:32,879 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 05:15:32,880 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 05:15:32,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 05:15:33,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-19 05:15:33,111 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-19 05:15:33,115 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 05:15:33,260 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:15:33 BoogieIcfgContainer [2023-11-19 05:15:33,260 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 05:15:33,262 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 05:15:33,262 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 05:15:33,262 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 05:15:33,263 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:15:31" (3/4) ... [2023-11-19 05:15:33,268 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 05:15:33,269 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 05:15:33,270 INFO L158 Benchmark]: Toolchain (without parser) took 3342.49ms. Allocated memory is still 192.9MB. Free memory was 164.6MB in the beginning and 136.7MB in the end (delta: 27.9MB). Peak memory consumption was 25.7MB. Max. memory is 16.1GB. [2023-11-19 05:15:33,271 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 130.0MB. Free memory is still 103.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:15:33,272 INFO L158 Benchmark]: CACSL2BoogieTranslator took 415.80ms. Allocated memory is still 192.9MB. Free memory was 164.4MB in the beginning and 152.9MB in the end (delta: 11.6MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. [2023-11-19 05:15:33,273 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.34ms. Allocated memory is still 192.9MB. Free memory was 152.9MB in the beginning and 148.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 05:15:33,280 INFO L158 Benchmark]: Boogie Preprocessor took 52.71ms. Allocated memory is still 192.9MB. Free memory was 148.7MB in the beginning and 146.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:15:33,282 INFO L158 Benchmark]: RCFGBuilder took 1282.58ms. Allocated memory is still 192.9MB. Free memory was 146.3MB in the beginning and 99.4MB in the end (delta: 46.9MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2023-11-19 05:15:33,284 INFO L158 Benchmark]: TraceAbstraction took 1484.63ms. Allocated memory is still 192.9MB. Free memory was 98.3MB in the beginning and 136.7MB in the end (delta: -38.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:15:33,284 INFO L158 Benchmark]: Witness Printer took 7.43ms. Allocated memory is still 192.9MB. Free memory is still 136.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:15:33,293 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 130.0MB. Free memory is still 103.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 415.80ms. Allocated memory is still 192.9MB. Free memory was 164.4MB in the beginning and 152.9MB in the end (delta: 11.6MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 90.34ms. Allocated memory is still 192.9MB. Free memory was 152.9MB in the beginning and 148.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.71ms. Allocated memory is still 192.9MB. Free memory was 148.7MB in the beginning and 146.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1282.58ms. Allocated memory is still 192.9MB. Free memory was 146.3MB in the beginning and 99.4MB in the end (delta: 46.9MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1484.63ms. Allocated memory is still 192.9MB. Free memory was 98.3MB in the beginning and 136.7MB in the end (delta: -38.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 7.43ms. Allocated memory is still 192.9MB. Free memory is still 136.7MB. 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 61, overapproximation of someUnaryDOUBLEoperation at line 30, overapproximation of someBinaryArithmeticFLOAToperation at line 59. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed short int var_1_1 = 16; [L23] signed char var_1_5 = -8; [L24] unsigned char var_1_6 = 10; [L25] unsigned char var_1_7 = 128; [L26] unsigned char var_1_8 = 1; [L27] unsigned char var_1_11 = 0; [L28] unsigned char var_1_12 = 0; [L29] signed short int var_1_13 = 200; [L30] float var_1_14 = -0.8; [L31] float var_1_15 = 127.25; [L32] float var_1_16 = 3.5; [L33] unsigned short int var_1_17 = 16; [L34] unsigned char var_1_19 = 1; [L35] unsigned char var_1_20 = 0; [L36] unsigned char var_1_21 = 0; [L37] float var_1_26 = 500.65; [L38] float var_1_30 = 9.8; [L39] unsigned char var_1_31 = 4; [L40] unsigned short int var_1_34 = 1; [L41] unsigned long int var_1_35 = 10; [L42] unsigned char var_1_36 = 10; [L43] unsigned char var_1_38 = 16; [L44] unsigned char var_1_39 = 0; [L45] unsigned short int var_1_40 = 10; [L46] unsigned short int var_1_41 = 128; [L47] unsigned short int var_1_42 = 40597; [L48] signed short int last_1_var_1_1 = 16; [L49] unsigned char last_1_var_1_6 = 10; [L50] unsigned char last_1_var_1_8 = 1; [L51] signed short int last_1_var_1_13 = 200; [L181] isInitial = 1 [L182] FCALL initially() [L183] COND TRUE 1 [L184] CALL updateLastVariables() [L171] last_1_var_1_1 = var_1_1 [L172] last_1_var_1_6 = var_1_6 [L173] last_1_var_1_8 = var_1_8 [L174] last_1_var_1_13 = var_1_13 [L184] RET updateLastVariables() [L185] CALL updateVariables() [L141] var_1_5 = __VERIFIER_nondet_char() [L142] CALL assume_abort_if_not(var_1_5 >= -127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=0, var_1_12=0, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=16, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=-2, var_1_6=10, var_1_7=128, var_1_8=1] [L20] COND FALSE !(!cond) [L142] RET assume_abort_if_not(var_1_5 >= -127) VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=0, var_1_12=0, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=16, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=-2, var_1_6=10, var_1_7=128, var_1_8=1] [L143] CALL assume_abort_if_not(var_1_5 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=0, var_1_12=0, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=16, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=-2, var_1_6=10, var_1_7=128, var_1_8=1] [L20] COND FALSE !(!cond) [L143] RET assume_abort_if_not(var_1_5 <= 127) VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=0, var_1_12=0, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=16, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=-2, var_1_6=10, var_1_7=128, var_1_8=1] [L144] var_1_7 = __VERIFIER_nondet_uchar() [L145] CALL assume_abort_if_not(var_1_7 >= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=0, var_1_12=0, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=16, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=-2, var_1_6=10, var_1_7=227, var_1_8=1] [L20] COND FALSE !(!cond) [L145] RET assume_abort_if_not(var_1_7 >= 127) VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=0, var_1_12=0, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=16, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=-2, var_1_6=10, var_1_7=227, var_1_8=1] [L146] CALL assume_abort_if_not(var_1_7 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=0, var_1_12=0, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=16, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=-2, var_1_6=10, var_1_7=227, var_1_8=1] [L20] COND FALSE !(!cond) [L146] RET assume_abort_if_not(var_1_7 <= 254) VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=0, var_1_12=0, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=16, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=-2, var_1_6=10, var_1_7=227, var_1_8=1] [L147] var_1_11 = __VERIFIER_nondet_uchar() [L148] CALL assume_abort_if_not(var_1_11 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=16, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=-2, var_1_6=10, var_1_7=227, var_1_8=1] [L20] COND FALSE !(!cond) [L148] RET assume_abort_if_not(var_1_11 >= 1) VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=16, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=-2, var_1_6=10, var_1_7=227, var_1_8=1] [L149] CALL assume_abort_if_not(var_1_11 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=16, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=-2, var_1_6=10, var_1_7=227, var_1_8=1] [L20] COND FALSE !(!cond) [L149] RET assume_abort_if_not(var_1_11 <= 1) VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=16, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=-2, var_1_6=10, var_1_7=227, var_1_8=1] [L150] var_1_12 = __VERIFIER_nondet_uchar() [L151] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=16, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=-2, var_1_6=10, var_1_7=227, var_1_8=1] [L20] COND FALSE !(!cond) [L151] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=16, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=-2, var_1_6=10, var_1_7=227, var_1_8=1] [L152] CALL assume_abort_if_not(var_1_12 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=16, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=-2, var_1_6=10, var_1_7=227, var_1_8=1] [L20] COND FALSE !(!cond) [L152] RET assume_abort_if_not(var_1_12 <= 0) VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=16, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=-2, var_1_6=10, var_1_7=227, var_1_8=1] [L153] var_1_15 = __VERIFIER_nondet_float() [L154] CALL assume_abort_if_not((var_1_15 >= -461168.6018427382800e+13F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 4611686.018427382800e+12F && var_1_15 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=2, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=16, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=-2, var_1_6=10, var_1_7=227, var_1_8=1] [L20] COND FALSE !(!cond) [L154] RET assume_abort_if_not((var_1_15 >= -461168.6018427382800e+13F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 4611686.018427382800e+12F && var_1_15 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=2, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=16, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=-2, var_1_6=10, var_1_7=227, var_1_8=1] [L155] var_1_16 = __VERIFIER_nondet_float() [L156] CALL assume_abort_if_not((var_1_16 >= -461168.6018427382800e+13F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 4611686.018427382800e+12F && var_1_16 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=2, var_1_16=49/5, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=16, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=-2, var_1_6=10, var_1_7=227, var_1_8=1] [L20] COND FALSE !(!cond) [L156] RET assume_abort_if_not((var_1_16 >= -461168.6018427382800e+13F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 4611686.018427382800e+12F && var_1_16 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=2, var_1_16=49/5, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=16, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=-2, var_1_6=10, var_1_7=227, var_1_8=1] [L157] var_1_20 = __VERIFIER_nondet_uchar() [L158] CALL assume_abort_if_not(var_1_20 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=2, var_1_16=49/5, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=16, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=-2, var_1_6=10, var_1_7=227, var_1_8=1] [L20] COND FALSE !(!cond) [L158] RET assume_abort_if_not(var_1_20 >= 0) VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=2, var_1_16=49/5, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=16, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=-2, var_1_6=10, var_1_7=227, var_1_8=1] [L159] CALL assume_abort_if_not(var_1_20 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=2, var_1_16=49/5, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=16, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=-2, var_1_6=10, var_1_7=227, var_1_8=1] [L20] COND FALSE !(!cond) [L159] RET assume_abort_if_not(var_1_20 <= 0) VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=2, var_1_16=49/5, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=16, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=-2, var_1_6=10, var_1_7=227, var_1_8=1] [L160] var_1_38 = __VERIFIER_nondet_uchar() [L161] CALL assume_abort_if_not(var_1_38 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=2, var_1_16=49/5, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=0, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=-2, var_1_6=10, var_1_7=227, var_1_8=1] [L20] COND FALSE !(!cond) [L161] RET assume_abort_if_not(var_1_38 >= 0) VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=2, var_1_16=49/5, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=0, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=-2, var_1_6=10, var_1_7=227, var_1_8=1] [L162] CALL assume_abort_if_not(var_1_38 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=2, var_1_16=49/5, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=0, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=-2, var_1_6=10, var_1_7=227, var_1_8=1] [L20] COND FALSE !(!cond) [L162] RET assume_abort_if_not(var_1_38 <= 127) VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=2, var_1_16=49/5, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=0, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=-2, var_1_6=10, var_1_7=227, var_1_8=1] [L163] var_1_39 = __VERIFIER_nondet_uchar() [L164] CALL assume_abort_if_not(var_1_39 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=2, var_1_16=49/5, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=0, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=-2, var_1_6=10, var_1_7=227, var_1_8=1] [L20] COND FALSE !(!cond) [L164] RET assume_abort_if_not(var_1_39 >= 0) VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=2, var_1_16=49/5, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=0, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=-2, var_1_6=10, var_1_7=227, var_1_8=1] [L165] CALL assume_abort_if_not(var_1_39 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=2, var_1_16=49/5, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=0, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=-2, var_1_6=10, var_1_7=227, var_1_8=1] [L20] COND FALSE !(!cond) [L165] RET assume_abort_if_not(var_1_39 <= 127) VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=2, var_1_16=49/5, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=0, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=40597, var_1_5=-2, var_1_6=10, var_1_7=227, var_1_8=1] [L166] var_1_42 = __VERIFIER_nondet_ushort() [L167] CALL assume_abort_if_not(var_1_42 >= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=2, var_1_16=49/5, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=0, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=32767, var_1_5=-2, var_1_6=10, var_1_7=227, var_1_8=1] [L20] COND FALSE !(!cond) [L167] RET assume_abort_if_not(var_1_42 >= 32767) VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=2, var_1_16=49/5, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=0, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=32767, var_1_5=-2, var_1_6=10, var_1_7=227, var_1_8=1] [L168] CALL assume_abort_if_not(var_1_42 <= 65534) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=2, var_1_16=49/5, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=0, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=32767, var_1_5=-2, var_1_6=10, var_1_7=227, var_1_8=1] [L20] COND FALSE !(!cond) [L168] RET assume_abort_if_not(var_1_42 <= 65534) VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=2, var_1_16=49/5, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_21=0, var_1_26=10013/20, var_1_30=49/5, var_1_31=4, var_1_34=1, var_1_35=10, var_1_36=10, var_1_38=0, var_1_39=0, var_1_40=10, var_1_41=128, var_1_42=32767, var_1_5=-2, var_1_6=10, var_1_7=227, var_1_8=1] [L185] RET updateVariables() [L186] CALL step() [L55] COND TRUE var_1_11 || var_1_8 [L56] var_1_21 = ((var_1_7 > -4) || var_1_11) [L58] COND FALSE !(((var_1_1 + 25) % var_1_7) < 2) [L61] COND FALSE !((- var_1_15) < ((((var_1_14) > (var_1_16)) ? (var_1_14) : (var_1_16)))) [L64] COND TRUE ((((((((var_1_7) < 0 ) ? -(var_1_7) : (var_1_7)))) < (var_1_5)) ? (((((var_1_7) < 0 ) ? -(var_1_7) : (var_1_7)))) : (var_1_5))) <= var_1_1 [L65] var_1_31 = var_1_7 [L67] COND TRUE var_1_6 < ((((var_1_13) < 0 ) ? -(var_1_13) : (var_1_13))) [L68] var_1_34 = ((((((((var_1_6) < 0 ) ? -(var_1_6) : (var_1_6)))) > (var_1_7)) ? (((((var_1_6) < 0 ) ? -(var_1_6) : (var_1_6)))) : (var_1_7))) [L70] COND TRUE \read(var_1_11) [L71] var_1_35 = var_1_7 [L73] COND TRUE \read(var_1_11) [L74] var_1_36 = (var_1_7 - var_1_38) [L78] COND TRUE (- var_1_7) != var_1_6 [L79] var_1_40 = var_1_39 [L81] COND FALSE !(var_1_7 <= (~ var_1_7)) [L86] var_1_41 = var_1_6 [L88] signed long int stepLocal_6 = last_1_var_1_1; [L89] unsigned char stepLocal_5 = ((((last_1_var_1_1) < (8)) ? (last_1_var_1_1) : (8))) <= var_1_5; [L90] COND TRUE stepLocal_5 || last_1_var_1_8 [L91] COND FALSE !(stepLocal_6 <= last_1_var_1_6) [L94] var_1_14 = var_1_16 [L99] COND FALSE !(var_1_14 <= var_1_15) [L102] COND TRUE var_1_5 >= -2 [L103] var_1_6 = (var_1_7 - 100) [L105] unsigned char stepLocal_4 = var_1_6; [L106] signed long int stepLocal_3 = var_1_6 / var_1_7; [L107] COND TRUE last_1_var_1_13 >= stepLocal_3 [L108] COND TRUE stepLocal_4 != ((((((((var_1_6) > (last_1_var_1_13)) ? (var_1_6) : (last_1_var_1_13)))) > (var_1_5)) ? (((((var_1_6) > (last_1_var_1_13)) ? (var_1_6) : (last_1_var_1_13)))) : (var_1_5))) [L109] var_1_13 = var_1_7 [L116] unsigned char stepLocal_7 = var_1_6; [L117] COND FALSE !(stepLocal_7 > var_1_6) [L120] unsigned char stepLocal_0 = var_1_6; [L121] COND TRUE \read(var_1_19) [L122] var_1_1 = ((((var_1_6) > (var_1_6)) ? (var_1_6) : (var_1_6))) [L128] unsigned char stepLocal_2 = var_1_19 && var_1_19; [L129] unsigned char stepLocal_1 = var_1_7; [L130] COND TRUE (49.5f <= var_1_14) && stepLocal_2 [L131] COND FALSE !(var_1_13 < stepLocal_1) [L134] var_1_8 = var_1_11 [L186] RET step() [L187] CALL, EXPR property() [L177-L178] return ((((((var_1_19 ? (var_1_1 == ((signed short int) ((((var_1_6) > (var_1_6)) ? (var_1_6) : (var_1_6))))) : ((((((var_1_5) < 0 ) ? -(var_1_5) : (var_1_5))) >= var_1_6) ? (var_1_1 == ((signed short int) var_1_5)) : 1)) && ((var_1_5 >= -2) ? (var_1_6 == ((unsigned char) (var_1_7 - 100))) : 1)) && (((49.5f <= var_1_14) && (var_1_19 && var_1_19)) ? ((var_1_13 < var_1_7) ? (var_1_8 == ((unsigned char) (var_1_19 || var_1_11))) : (var_1_8 == ((unsigned char) var_1_11))) : (var_1_8 == ((unsigned char) var_1_12)))) && ((last_1_var_1_13 >= (var_1_6 / var_1_7)) ? ((var_1_6 != ((((((((var_1_6) > (last_1_var_1_13)) ? (var_1_6) : (last_1_var_1_13)))) > (var_1_5)) ? (((((var_1_6) > (last_1_var_1_13)) ? (var_1_6) : (last_1_var_1_13)))) : (var_1_5)))) ? (var_1_13 == ((signed short int) var_1_7)) : (var_1_13 == ((signed short int) last_1_var_1_13))) : (var_1_13 == ((signed short int) var_1_6)))) && (((((((last_1_var_1_1) < (8)) ? (last_1_var_1_1) : (8))) <= var_1_5) || last_1_var_1_8) ? ((last_1_var_1_1 <= last_1_var_1_6) ? (var_1_14 == ((float) (var_1_15 + var_1_16))) : (var_1_14 == ((float) var_1_16))) : (var_1_14 == ((float) var_1_16)))) && ((var_1_6 > var_1_6) ? (var_1_17 == ((unsigned short int) ((((25) > ((var_1_13 + var_1_6))) ? (25) : ((var_1_13 + var_1_6)))))) : 1)) && ((var_1_14 <= var_1_15) ? (var_1_19 == ((unsigned char) (var_1_12 || var_1_20))) : 1) ; [L187] RET, EXPR property() [L187] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=227, var_1_14=49/5, var_1_15=2, var_1_16=49/5, var_1_17=16, var_1_19=1, var_1_1=127, var_1_20=0, var_1_21=1, var_1_26=10013/20, var_1_30=49/5, var_1_31=227, var_1_34=227, var_1_35=227, var_1_36=227, var_1_38=0, var_1_39=0, var_1_40=0, var_1_41=10, var_1_42=32767, var_1_5=-2, var_1_6=127, var_1_7=227, var_1_8=1] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=227, var_1_14=49/5, var_1_15=2, var_1_16=49/5, var_1_17=16, var_1_19=1, var_1_1=127, var_1_20=0, var_1_21=1, var_1_26=10013/20, var_1_30=49/5, var_1_31=227, var_1_34=227, var_1_35=227, var_1_36=227, var_1_38=0, var_1_39=0, var_1_40=0, var_1_41=10, var_1_42=32767, var_1_5=-2, var_1_6=127, var_1_7=227, var_1_8=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 1, TraceHistogramMax: 18, 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=37occurred 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: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 68 NumberOfCodeBlocks, 68 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 05:15:33,338 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-42.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0c139e9da6bc1973aeb5aa6fa63324ad1af6ba8328267ab6771924e49569b825 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:15:36,174 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:15:36,333 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-19 05:15:36,343 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:15:36,344 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:15:36,393 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:15:36,394 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:15:36,395 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:15:36,396 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:15:36,401 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:15:36,402 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:15:36,403 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:15:36,403 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:15:36,405 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:15:36,406 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:15:36,406 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:15:36,407 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:15:36,408 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:15:36,408 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:15:36,410 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:15:36,410 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:15:36,411 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:15:36,411 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:15:36,412 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:15:36,412 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 05:15:36,413 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 05:15:36,413 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 05:15:36,413 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:15:36,414 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:15:36,414 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:15:36,416 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:15:36,416 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 05:15:36,417 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:15:36,417 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:15:36,417 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:15:36,418 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:15:36,418 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:15:36,418 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 05:15:36,419 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 05:15:36,420 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:15:36,420 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:15:36,421 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:15:36,421 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_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c139e9da6bc1973aeb5aa6fa63324ad1af6ba8328267ab6771924e49569b825 [2023-11-19 05:15:36,854 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:15:36,880 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:15:36,883 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:15:36,884 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:15:36,887 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:15:36,888 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-42.i [2023-11-19 05:15:40,058 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:15:40,389 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:15:40,389 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-42.i [2023-11-19 05:15:40,405 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/data/642ffc7a7/3c39a58fad8543f7b704ee2439599c0c/FLAG9de86f71b [2023-11-19 05:15:40,421 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/data/642ffc7a7/3c39a58fad8543f7b704ee2439599c0c [2023-11-19 05:15:40,423 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:15:40,425 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:15:40,426 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:15:40,426 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:15:40,431 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:15:40,432 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:15:40" (1/1) ... [2023-11-19 05:15:40,433 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5895b17b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:40, skipping insertion in model container [2023-11-19 05:15:40,433 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:15:40" (1/1) ... [2023-11-19 05:15:40,474 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:15:40,638 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_ea189b2f-82a9-42ad-889e-b1b0937ad53e/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-42.i[919,932] [2023-11-19 05:15:40,712 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:15:40,730 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:15:40,743 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_ea189b2f-82a9-42ad-889e-b1b0937ad53e/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-42.i[919,932] [2023-11-19 05:15:40,793 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:15:40,837 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:15:40,838 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:40 WrapperNode [2023-11-19 05:15:40,838 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:15:40,839 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:15:40,839 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:15:40,840 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:15:40,863 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:40" (1/1) ... [2023-11-19 05:15:40,899 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:40" (1/1) ... [2023-11-19 05:15:40,955 INFO L138 Inliner]: procedures = 27, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 170 [2023-11-19 05:15:40,968 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:15:40,969 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:15:40,969 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:15:40,969 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:15:40,981 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:40" (1/1) ... [2023-11-19 05:15:40,982 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:40" (1/1) ... [2023-11-19 05:15:40,998 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:40" (1/1) ... [2023-11-19 05:15:40,999 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:40" (1/1) ... [2023-11-19 05:15:41,026 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:40" (1/1) ... [2023-11-19 05:15:41,031 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:40" (1/1) ... [2023-11-19 05:15:41,051 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:40" (1/1) ... [2023-11-19 05:15:41,053 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:40" (1/1) ... [2023-11-19 05:15:41,059 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:15:41,072 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:15:41,072 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:15:41,073 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:15:41,074 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:40" (1/1) ... [2023-11-19 05:15:41,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:15:41,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:15:41,125 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:15:41,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:15:41,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:15:41,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 05:15:41,181 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:15:41,181 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:15:41,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:15:41,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:15:41,329 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:15:41,332 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:15:42,098 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:15:42,108 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:15:42,108 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:15:42,113 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:15:42 BoogieIcfgContainer [2023-11-19 05:15:42,114 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:15:42,116 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:15:42,117 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:15:42,123 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:15:42,124 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:15:40" (1/3) ... [2023-11-19 05:15:42,125 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@be98ef6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:15:42, skipping insertion in model container [2023-11-19 05:15:42,125 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:40" (2/3) ... [2023-11-19 05:15:42,127 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@be98ef6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:15:42, skipping insertion in model container [2023-11-19 05:15:42,127 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:15:42" (3/3) ... [2023-11-19 05:15:42,129 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-ci_file-42.i [2023-11-19 05:15:42,154 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:15:42,154 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:15:42,257 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:15:42,265 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;@5bec5e8b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:15:42,266 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:15:42,274 INFO L276 IsEmpty]: Start isEmpty. Operand has 73 states, 52 states have (on average 1.5) internal successors, (78), 53 states have internal predecessors, (78), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-19 05:15:42,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-11-19 05:15:42,298 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:15:42,299 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:15:42,302 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:15:42,310 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:15:42,310 INFO L85 PathProgramCache]: Analyzing trace with hash 1673224382, now seen corresponding path program 1 times [2023-11-19 05:15:42,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:15:42,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [951494803] [2023-11-19 05:15:42,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:15:42,340 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:15:42,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:15:42,344 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 05:15:42,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-19 05:15:42,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:15:42,831 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 05:15:42,843 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:15:42,897 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 314 proven. 0 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2023-11-19 05:15:42,897 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:15:42,898 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:15:42,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [951494803] [2023-11-19 05:15:42,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [951494803] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:15:42,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:15:42,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:15:42,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018809980] [2023-11-19 05:15:42,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:15:42,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 05:15:42,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:15:42,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 05:15:42,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 05:15:42,943 INFO L87 Difference]: Start difference. First operand has 73 states, 52 states have (on average 1.5) internal successors, (78), 53 states have internal predecessors, (78), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-19 05:15:42,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:15:42,977 INFO L93 Difference]: Finished difference Result 138 states and 238 transitions. [2023-11-19 05:15:42,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 05:15:42,979 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 130 [2023-11-19 05:15:42,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:15:42,987 INFO L225 Difference]: With dead ends: 138 [2023-11-19 05:15:42,987 INFO L226 Difference]: Without dead ends: 68 [2023-11-19 05:15:42,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 05:15:42,996 INFO L413 NwaCegarLoop]: 104 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, 104 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:15:42,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:15:43,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2023-11-19 05:15:43,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2023-11-19 05:15:43,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 48 states have (on average 1.4166666666666667) internal successors, (68), 48 states have internal predecessors, (68), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-19 05:15:43,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 104 transitions. [2023-11-19 05:15:43,051 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 104 transitions. Word has length 130 [2023-11-19 05:15:43,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:15:43,052 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 104 transitions. [2023-11-19 05:15:43,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-19 05:15:43,053 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 104 transitions. [2023-11-19 05:15:43,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-11-19 05:15:43,057 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:15:43,058 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:15:43,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-19 05:15:43,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:15:43,269 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:15:43,270 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:15:43,270 INFO L85 PathProgramCache]: Analyzing trace with hash -824978622, now seen corresponding path program 1 times [2023-11-19 05:15:43,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:15:43,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [574524084] [2023-11-19 05:15:43,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:15:43,272 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:15:43,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:15:43,274 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 05:15:43,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-19 05:15:43,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:15:43,718 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 05:15:43,727 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:15:44,153 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-19 05:15:44,153 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:15:44,153 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:15:44,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [574524084] [2023-11-19 05:15:44,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [574524084] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:15:44,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:15:44,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:15:44,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178667357] [2023-11-19 05:15:44,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:15:44,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:15:44,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:15:44,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:15:44,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:15:44,159 INFO L87 Difference]: Start difference. First operand 68 states and 104 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-19 05:15:44,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:15:44,321 INFO L93 Difference]: Finished difference Result 192 states and 300 transitions. [2023-11-19 05:15:44,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:15:44,322 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 130 [2023-11-19 05:15:44,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:15:44,326 INFO L225 Difference]: With dead ends: 192 [2023-11-19 05:15:44,326 INFO L226 Difference]: Without dead ends: 127 [2023-11-19 05:15:44,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:15:44,330 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 40 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:15:44,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 196 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:15:44,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2023-11-19 05:15:44,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 103. [2023-11-19 05:15:44,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 64 states have (on average 1.3125) internal successors, (84), 64 states have internal predecessors, (84), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-19 05:15:44,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 156 transitions. [2023-11-19 05:15:44,365 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 156 transitions. Word has length 130 [2023-11-19 05:15:44,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:15:44,366 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 156 transitions. [2023-11-19 05:15:44,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-19 05:15:44,367 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 156 transitions. [2023-11-19 05:15:44,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-11-19 05:15:44,370 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:15:44,370 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:15:44,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-19 05:15:44,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:15:44,586 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:15:44,587 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:15:44,587 INFO L85 PathProgramCache]: Analyzing trace with hash -965527232, now seen corresponding path program 1 times [2023-11-19 05:15:44,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:15:44,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1720676619] [2023-11-19 05:15:44,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:15:44,589 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:15:44,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:15:44,596 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 05:15:44,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-19 05:15:44,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:15:44,971 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 05:15:44,979 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:15:45,368 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-19 05:15:45,368 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:15:45,369 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:15:45,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1720676619] [2023-11-19 05:15:45,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1720676619] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:15:45,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:15:45,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:15:45,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915094440] [2023-11-19 05:15:45,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:15:45,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:15:45,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:15:45,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:15:45,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 05:15:45,388 INFO L87 Difference]: Start difference. First operand 103 states and 156 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-19 05:15:45,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:15:45,859 INFO L93 Difference]: Finished difference Result 199 states and 306 transitions. [2023-11-19 05:15:45,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 05:15:45,865 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 130 [2023-11-19 05:15:45,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:15:45,869 INFO L225 Difference]: With dead ends: 199 [2023-11-19 05:15:45,870 INFO L226 Difference]: Without dead ends: 134 [2023-11-19 05:15:45,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:15:45,873 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 94 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 05:15:45,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 291 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 05:15:45,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2023-11-19 05:15:45,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 113. [2023-11-19 05:15:45,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 74 states have (on average 1.364864864864865) internal successors, (101), 74 states have internal predecessors, (101), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-19 05:15:45,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 173 transitions. [2023-11-19 05:15:45,906 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 173 transitions. Word has length 130 [2023-11-19 05:15:45,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:15:45,907 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 173 transitions. [2023-11-19 05:15:45,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-19 05:15:45,908 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 173 transitions. [2023-11-19 05:15:45,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-19 05:15:45,910 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:15:45,911 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:15:45,937 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-19 05:15:46,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:15:46,123 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:15:46,124 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:15:46,124 INFO L85 PathProgramCache]: Analyzing trace with hash -948363063, now seen corresponding path program 1 times [2023-11-19 05:15:46,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:15:46,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [991954780] [2023-11-19 05:15:46,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:15:46,126 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:15:46,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:15:46,127 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 05:15:46,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-19 05:15:46,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:15:46,497 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 05:15:46,503 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:15:46,536 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-19 05:15:46,536 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:15:46,536 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:15:46,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [991954780] [2023-11-19 05:15:46,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [991954780] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:15:46,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:15:46,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:15:46,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28144663] [2023-11-19 05:15:46,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:15:46,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:15:46,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:15:46,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:15:46,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:15:46,563 INFO L87 Difference]: Start difference. First operand 113 states and 173 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-19 05:15:46,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:15:46,822 INFO L93 Difference]: Finished difference Result 178 states and 274 transitions. [2023-11-19 05:15:46,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:15:46,837 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 131 [2023-11-19 05:15:46,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:15:46,840 INFO L225 Difference]: With dead ends: 178 [2023-11-19 05:15:46,841 INFO L226 Difference]: Without dead ends: 113 [2023-11-19 05:15:46,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:15:46,843 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 11 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 05:15:46,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 176 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 05:15:46,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2023-11-19 05:15:46,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2023-11-19 05:15:46,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 74 states have (on average 1.3513513513513513) internal successors, (100), 74 states have internal predecessors, (100), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-19 05:15:46,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 172 transitions. [2023-11-19 05:15:46,869 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 172 transitions. Word has length 131 [2023-11-19 05:15:46,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:15:46,870 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 172 transitions. [2023-11-19 05:15:46,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-19 05:15:46,871 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 172 transitions. [2023-11-19 05:15:46,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-19 05:15:46,874 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:15:46,874 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:15:46,895 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-11-19 05:15:47,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:15:47,085 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:15:47,085 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:15:47,086 INFO L85 PathProgramCache]: Analyzing trace with hash -268304693, now seen corresponding path program 1 times [2023-11-19 05:15:47,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:15:47,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [55118685] [2023-11-19 05:15:47,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:15:47,087 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:15:47,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:15:47,089 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 05:15:47,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-19 05:15:47,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:15:47,470 INFO L262 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 05:15:47,475 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:15:48,073 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 401 proven. 45 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2023-11-19 05:15:48,073 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:15:48,613 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 51 proven. 48 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2023-11-19 05:15:48,613 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:15:48,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [55118685] [2023-11-19 05:15:48,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [55118685] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:15:48,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [298877785] [2023-11-19 05:15:48,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:15:48,614 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 05:15:48,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/cvc4 [2023-11-19 05:15:48,620 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 05:15:48,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-11-19 05:15:49,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:15:49,563 INFO L262 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 05:15:49,569 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:15:50,781 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-19 05:15:50,781 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:15:50,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [298877785] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:15:50,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-19 05:15:50,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9, 9] total 16 [2023-11-19 05:15:50,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950640024] [2023-11-19 05:15:50,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:15:50,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 05:15:50,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:15:50,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 05:15:50,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2023-11-19 05:15:50,785 INFO L87 Difference]: Start difference. First operand 113 states and 172 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-19 05:15:53,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:15:53,183 INFO L93 Difference]: Finished difference Result 264 states and 400 transitions. [2023-11-19 05:15:53,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 05:15:53,184 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 131 [2023-11-19 05:15:53,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:15:53,188 INFO L225 Difference]: With dead ends: 264 [2023-11-19 05:15:53,188 INFO L226 Difference]: Without dead ends: 193 [2023-11-19 05:15:53,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 375 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=70, Invalid=272, Unknown=0, NotChecked=0, Total=342 [2023-11-19 05:15:53,191 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 106 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:15:53,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 364 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-19 05:15:53,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2023-11-19 05:15:53,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 176. [2023-11-19 05:15:53,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 118 states have (on average 1.3389830508474576) internal successors, (158), 118 states have internal predecessors, (158), 54 states have call successors, (54), 3 states have call predecessors, (54), 3 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-19 05:15:53,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 266 transitions. [2023-11-19 05:15:53,229 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 266 transitions. Word has length 131 [2023-11-19 05:15:53,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:15:53,230 INFO L495 AbstractCegarLoop]: Abstraction has 176 states and 266 transitions. [2023-11-19 05:15:53,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-19 05:15:53,230 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 266 transitions. [2023-11-19 05:15:53,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-19 05:15:53,233 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:15:53,234 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:15:53,254 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-11-19 05:15:53,452 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2023-11-19 05:15:53,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt [2023-11-19 05:15:53,644 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:15:53,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:15:53,644 INFO L85 PathProgramCache]: Analyzing trace with hash 318501321, now seen corresponding path program 1 times [2023-11-19 05:15:53,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:15:53,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1666702206] [2023-11-19 05:15:53,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:15:53,646 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:15:53,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:15:53,647 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 05:15:53,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-11-19 05:15:53,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:15:54,007 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 05:15:54,012 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:15:54,596 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 401 proven. 45 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2023-11-19 05:15:54,596 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:15:55,153 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 51 proven. 48 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2023-11-19 05:15:55,153 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:15:55,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1666702206] [2023-11-19 05:15:55,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1666702206] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:15:55,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [315757288] [2023-11-19 05:15:55,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:15:55,157 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 05:15:55,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/cvc4 [2023-11-19 05:15:55,158 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 05:15:55,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-11-19 05:15:56,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:15:56,192 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 05:15:56,197 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:15:56,990 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-19 05:15:56,991 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:15:56,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [315757288] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:15:56,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-19 05:15:56,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9, 9] total 17 [2023-11-19 05:15:56,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621592239] [2023-11-19 05:15:56,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:15:56,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 05:15:56,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:15:56,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 05:15:56,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2023-11-19 05:15:56,993 INFO L87 Difference]: Start difference. First operand 176 states and 266 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-19 05:15:59,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:15:59,862 INFO L93 Difference]: Finished difference Result 362 states and 537 transitions. [2023-11-19 05:15:59,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 05:15:59,871 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 131 [2023-11-19 05:15:59,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:15:59,875 INFO L225 Difference]: With dead ends: 362 [2023-11-19 05:15:59,875 INFO L226 Difference]: Without dead ends: 297 [2023-11-19 05:15:59,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 394 GetRequests, 374 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=83, Invalid=337, Unknown=0, NotChecked=0, Total=420 [2023-11-19 05:15:59,877 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 139 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-19 05:15:59,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 471 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-19 05:15:59,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2023-11-19 05:15:59,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 262. [2023-11-19 05:15:59,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 182 states have (on average 1.3571428571428572) internal successors, (247), 183 states have internal predecessors, (247), 74 states have call successors, (74), 5 states have call predecessors, (74), 5 states have return successors, (74), 73 states have call predecessors, (74), 74 states have call successors, (74) [2023-11-19 05:15:59,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 395 transitions. [2023-11-19 05:15:59,939 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 395 transitions. Word has length 131 [2023-11-19 05:15:59,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:15:59,940 INFO L495 AbstractCegarLoop]: Abstraction has 262 states and 395 transitions. [2023-11-19 05:15:59,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-19 05:15:59,941 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 395 transitions. [2023-11-19 05:15:59,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-11-19 05:15:59,943 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:15:59,943 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:15:59,956 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2023-11-19 05:16:00,158 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-11-19 05:16:00,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:16:00,351 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:16:00,351 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:16:00,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1411798157, now seen corresponding path program 1 times [2023-11-19 05:16:00,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:16:00,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1526823493] [2023-11-19 05:16:00,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:16:00,353 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:16:00,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:16:00,355 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 05:16:00,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-11-19 05:16:00,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:16:00,700 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 05:16:00,705 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:16:01,286 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 401 proven. 45 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2023-11-19 05:16:01,286 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:16:01,843 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 51 proven. 48 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2023-11-19 05:16:01,843 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:16:01,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1526823493] [2023-11-19 05:16:01,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1526823493] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:16:01,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1042686140] [2023-11-19 05:16:01,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:16:01,845 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 05:16:01,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/cvc4 [2023-11-19 05:16:01,846 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 05:16:01,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-11-19 05:16:02,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:16:02,850 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-19 05:16:02,854 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:16:04,084 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 401 proven. 45 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2023-11-19 05:16:04,084 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:16:04,649 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 51 proven. 48 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2023-11-19 05:16:04,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1042686140] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:16:04,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [807113764] [2023-11-19 05:16:04,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:16:04,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:16:04,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:16:04,656 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:16:04,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-19 05:16:04,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:16:04,851 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 05:16:04,855 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:16:05,320 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 401 proven. 45 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2023-11-19 05:16:05,320 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:16:05,743 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 51 proven. 48 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2023-11-19 05:16:05,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [807113764] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:16:05,744 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-11-19 05:16:05,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 11, 11, 9, 9] total 23 [2023-11-19 05:16:05,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495423004] [2023-11-19 05:16:05,745 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-11-19 05:16:05,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-19 05:16:05,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:16:05,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-19 05:16:05,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2023-11-19 05:16:05,749 INFO L87 Difference]: Start difference. First operand 262 states and 395 transitions. Second operand has 23 states, 23 states have (on average 4.695652173913044) internal successors, (108), 23 states have internal predecessors, (108), 6 states have call successors, (46), 6 states have call predecessors, (46), 12 states have return successors, (47), 6 states have call predecessors, (47), 6 states have call successors, (47) [2023-11-19 05:16:11,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:16:11,505 INFO L93 Difference]: Finished difference Result 1169 states and 1651 transitions. [2023-11-19 05:16:11,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2023-11-19 05:16:11,507 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.695652173913044) internal successors, (108), 23 states have internal predecessors, (108), 6 states have call successors, (46), 6 states have call predecessors, (46), 12 states have return successors, (47), 6 states have call predecessors, (47), 6 states have call successors, (47) Word has length 132 [2023-11-19 05:16:11,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:16:11,520 INFO L225 Difference]: With dead ends: 1169 [2023-11-19 05:16:11,520 INFO L226 Difference]: Without dead ends: 955 [2023-11-19 05:16:11,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 843 GetRequests, 769 SyntacticMatches, 3 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1689 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1109, Invalid=4147, Unknown=0, NotChecked=0, Total=5256 [2023-11-19 05:16:11,525 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 465 mSDsluCounter, 1080 mSDsCounter, 0 mSdLazyCounter, 1032 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 473 SdHoareTripleChecker+Valid, 1231 SdHoareTripleChecker+Invalid, 1203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 1032 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:16:11,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [473 Valid, 1231 Invalid, 1203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [171 Valid, 1032 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-11-19 05:16:11,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 955 states. [2023-11-19 05:16:11,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 955 to 536. [2023-11-19 05:16:11,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 382 states have (on average 1.3193717277486912) internal successors, (504), 384 states have internal predecessors, (504), 130 states have call successors, (130), 23 states have call predecessors, (130), 23 states have return successors, (130), 128 states have call predecessors, (130), 130 states have call successors, (130) [2023-11-19 05:16:11,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 764 transitions. [2023-11-19 05:16:11,615 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 764 transitions. Word has length 132 [2023-11-19 05:16:11,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:16:11,616 INFO L495 AbstractCegarLoop]: Abstraction has 536 states and 764 transitions. [2023-11-19 05:16:11,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 4.695652173913044) internal successors, (108), 23 states have internal predecessors, (108), 6 states have call successors, (46), 6 states have call predecessors, (46), 12 states have return successors, (47), 6 states have call predecessors, (47), 6 states have call successors, (47) [2023-11-19 05:16:11,617 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 764 transitions. [2023-11-19 05:16:11,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-11-19 05:16:11,619 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:16:11,619 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:16:11,651 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-19 05:16:11,838 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2023-11-19 05:16:12,040 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-11-19 05:16:12,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:16:12,233 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:16:12,233 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:16:12,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1603305461, now seen corresponding path program 1 times [2023-11-19 05:16:12,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:16:12,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1241291638] [2023-11-19 05:16:12,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:16:12,234 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:16:12,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:16:12,236 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 05:16:12,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-11-19 05:16:12,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:16:12,580 INFO L262 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 05:16:12,584 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:16:13,255 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 141 proven. 45 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked. [2023-11-19 05:16:13,255 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:16:15,429 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:16:15,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1241291638] [2023-11-19 05:16:15,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1241291638] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:16:15,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1941616194] [2023-11-19 05:16:15,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:16:15,430 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 05:16:15,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/cvc4 [2023-11-19 05:16:15,431 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 05:16:15,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2023-11-19 05:16:16,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:16:16,313 INFO L262 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 05:16:16,317 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:16:16,797 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 141 proven. 45 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked. [2023-11-19 05:16:16,798 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:16:18,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1941616194] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:16:18,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [586154441] [2023-11-19 05:16:18,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:16:18,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:16:18,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:16:18,395 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:16:18,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea189b2f-82a9-42ad-889e-b1b0937ad53e/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-19 05:16:18,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:16:18,596 INFO L262 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 05:16:18,600 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:16:19,183 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 141 proven. 45 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked. [2023-11-19 05:16:19,183 INFO L327 TraceCheckSpWp]: Computing backward predicates...