./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-5.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da60513-6c1f-4882-b145-25d5e4acad21/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da60513-6c1f-4882-b145-25d5e4acad21/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_5da60513-6c1f-4882-b145-25d5e4acad21/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da60513-6c1f-4882-b145-25d5e4acad21/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da60513-6c1f-4882-b145-25d5e4acad21/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_5da60513-6c1f-4882-b145-25d5e4acad21/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 ba06880449cc9eb48584427dad875518cd896e20dec3ed5b33045e3e8689f7a3 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:06:34,647 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:06:34,715 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da60513-6c1f-4882-b145-25d5e4acad21/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 05:06:34,721 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:06:34,721 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:06:34,746 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:06:34,747 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:06:34,748 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:06:34,749 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:06:34,749 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:06:34,750 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:06:34,750 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:06:34,751 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:06:34,752 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:06:34,752 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:06:34,753 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:06:34,754 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:06:34,754 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:06:34,755 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:06:34,755 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:06:34,756 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:06:34,756 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:06:34,757 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:06:34,758 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:06:34,758 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:06:34,759 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:06:34,759 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:06:34,760 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:06:34,760 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:06:34,761 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:06:34,761 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:06:34,762 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:06:34,762 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:06:34,763 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:06:34,763 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:06:34,764 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:06:34,764 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:06:34,765 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:06:34,765 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:06:34,766 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:06:34,766 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:06:34,766 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:06:34,767 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:06:34,767 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:06:34,767 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:06:34,767 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_5da60513-6c1f-4882-b145-25d5e4acad21/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da60513-6c1f-4882-b145-25d5e4acad21/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ba06880449cc9eb48584427dad875518cd896e20dec3ed5b33045e3e8689f7a3 [2023-11-19 05:06:35,058 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:06:35,094 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:06:35,097 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:06:35,098 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:06:35,099 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:06:35,102 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da60513-6c1f-4882-b145-25d5e4acad21/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-5.i [2023-11-19 05:06:38,310 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:06:38,626 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:06:38,627 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da60513-6c1f-4882-b145-25d5e4acad21/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-5.i [2023-11-19 05:06:38,641 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da60513-6c1f-4882-b145-25d5e4acad21/bin/utaipan-verify-t7M7D8N6sZ/data/c61b6b650/26bf9b3021d842b7abe48adbc0aa1f4b/FLAG61397d59c [2023-11-19 05:06:38,658 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da60513-6c1f-4882-b145-25d5e4acad21/bin/utaipan-verify-t7M7D8N6sZ/data/c61b6b650/26bf9b3021d842b7abe48adbc0aa1f4b [2023-11-19 05:06:38,665 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:06:38,667 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:06:38,671 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:06:38,671 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:06:38,678 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:06:38,679 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:06:38" (1/1) ... [2023-11-19 05:06:38,682 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70b8f896 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:38, skipping insertion in model container [2023-11-19 05:06:38,682 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:06:38" (1/1) ... [2023-11-19 05:06:38,736 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:06:38,889 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_5da60513-6c1f-4882-b145-25d5e4acad21/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-5.i[918,931] [2023-11-19 05:06:38,965 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:06:38,980 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:06:38,993 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_5da60513-6c1f-4882-b145-25d5e4acad21/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-5.i[918,931] [2023-11-19 05:06:39,039 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:06:39,059 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:06:39,059 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:39 WrapperNode [2023-11-19 05:06:39,075 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:06:39,077 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:06:39,077 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:06:39,077 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:06:39,085 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:39" (1/1) ... [2023-11-19 05:06:39,099 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:39" (1/1) ... [2023-11-19 05:06:39,146 INFO L138 Inliner]: procedures = 26, calls = 32, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 169 [2023-11-19 05:06:39,147 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:06:39,148 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:06:39,148 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:06:39,148 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:06:39,158 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:39" (1/1) ... [2023-11-19 05:06:39,159 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:39" (1/1) ... [2023-11-19 05:06:39,163 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:39" (1/1) ... [2023-11-19 05:06:39,164 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:39" (1/1) ... [2023-11-19 05:06:39,177 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:39" (1/1) ... [2023-11-19 05:06:39,182 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:39" (1/1) ... [2023-11-19 05:06:39,187 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:39" (1/1) ... [2023-11-19 05:06:39,190 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:39" (1/1) ... [2023-11-19 05:06:39,198 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:06:39,199 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:06:39,199 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:06:39,199 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:06:39,200 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:39" (1/1) ... [2023-11-19 05:06:39,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:06:39,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da60513-6c1f-4882-b145-25d5e4acad21/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:06:39,235 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da60513-6c1f-4882-b145-25d5e4acad21/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:06:39,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da60513-6c1f-4882-b145-25d5e4acad21/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:06:39,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:06:39,279 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:06:39,280 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:06:39,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:06:39,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:06:39,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:06:39,369 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:06:39,372 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:06:39,856 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:06:40,266 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:06:40,266 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:06:40,271 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:06:40 BoogieIcfgContainer [2023-11-19 05:06:40,272 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:06:40,275 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:06:40,275 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:06:40,278 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:06:40,279 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:06:38" (1/3) ... [2023-11-19 05:06:40,280 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@627d2bad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:06:40, skipping insertion in model container [2023-11-19 05:06:40,281 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:39" (2/3) ... [2023-11-19 05:06:40,283 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@627d2bad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:06:40, skipping insertion in model container [2023-11-19 05:06:40,283 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:06:40" (3/3) ... [2023-11-19 05:06:40,284 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-ci_file-5.i [2023-11-19 05:06:40,303 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:06:40,303 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:06:40,369 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:06:40,378 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;@50bf9099, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:06:40,379 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:06:40,383 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 18 states have internal predecessors, (20), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-19 05:06:40,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-19 05:06:40,400 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:06:40,401 INFO L195 NwaCegarLoop]: trace histogram [19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:06:40,402 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:06:40,410 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:06:40,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1993561108, now seen corresponding path program 1 times [2023-11-19 05:06:40,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:06:40,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328443620] [2023-11-19 05:06:40,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:06:40,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:06:40,664 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 05:06:40,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [684336049] [2023-11-19 05:06:40,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:06:40,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:06:40,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da60513-6c1f-4882-b145-25d5e4acad21/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:06:40,668 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da60513-6c1f-4882-b145-25d5e4acad21/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:06:40,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da60513-6c1f-4882-b145-25d5e4acad21/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 05:06:41,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:06:41,478 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 05:06:41,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:06:41,727 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 05:06:41,730 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 05:06:41,732 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 05:06:41,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da60513-6c1f-4882-b145-25d5e4acad21/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 05:06:41,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da60513-6c1f-4882-b145-25d5e4acad21/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:06:41,947 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-19 05:06:41,952 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 05:06:42,084 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:06:42 BoogieIcfgContainer [2023-11-19 05:06:42,085 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 05:06:42,086 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 05:06:42,086 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 05:06:42,086 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 05:06:42,087 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:06:40" (3/4) ... [2023-11-19 05:06:42,089 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 05:06:42,090 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 05:06:42,092 INFO L158 Benchmark]: Toolchain (without parser) took 3424.05ms. Allocated memory was 136.3MB in the beginning and 169.9MB in the end (delta: 33.6MB). Free memory was 94.5MB in the beginning and 123.9MB in the end (delta: -29.4MB). Peak memory consumption was 4.0MB. Max. memory is 16.1GB. [2023-11-19 05:06:42,092 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 104.9MB. Free memory was 55.8MB in the beginning and 55.6MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:06:42,094 INFO L158 Benchmark]: CACSL2BoogieTranslator took 405.00ms. Allocated memory is still 136.3MB. Free memory was 94.0MB in the beginning and 78.6MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 05:06:42,099 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.84ms. Allocated memory is still 136.3MB. Free memory was 78.6MB in the beginning and 74.0MB in the end (delta: 4.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-19 05:06:42,100 INFO L158 Benchmark]: Boogie Preprocessor took 50.08ms. Allocated memory is still 136.3MB. Free memory was 74.0MB in the beginning and 71.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:06:42,101 INFO L158 Benchmark]: RCFGBuilder took 1072.93ms. Allocated memory is still 136.3MB. Free memory was 71.9MB in the beginning and 86.8MB in the end (delta: -15.0MB). Peak memory consumption was 20.4MB. Max. memory is 16.1GB. [2023-11-19 05:06:42,102 INFO L158 Benchmark]: TraceAbstraction took 1809.88ms. Allocated memory was 136.3MB in the beginning and 169.9MB in the end (delta: 33.6MB). Free memory was 86.1MB in the beginning and 124.9MB in the end (delta: -38.8MB). Peak memory consumption was 36.1MB. Max. memory is 16.1GB. [2023-11-19 05:06:42,102 INFO L158 Benchmark]: Witness Printer took 4.79ms. Allocated memory is still 169.9MB. Free memory is still 123.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:06:42,111 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 104.9MB. Free memory was 55.8MB in the beginning and 55.6MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 405.00ms. Allocated memory is still 136.3MB. Free memory was 94.0MB in the beginning and 78.6MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.84ms. Allocated memory is still 136.3MB. Free memory was 78.6MB in the beginning and 74.0MB in the end (delta: 4.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.08ms. Allocated memory is still 136.3MB. Free memory was 74.0MB in the beginning and 71.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1072.93ms. Allocated memory is still 136.3MB. Free memory was 71.9MB in the beginning and 86.8MB in the end (delta: -15.0MB). Peak memory consumption was 20.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1809.88ms. Allocated memory was 136.3MB in the beginning and 169.9MB in the end (delta: 33.6MB). Free memory was 86.1MB in the beginning and 124.9MB in the end (delta: -38.8MB). Peak memory consumption was 36.1MB. Max. memory is 16.1GB. * Witness Printer took 4.79ms. Allocated memory is still 169.9MB. Free memory is still 123.9MB. 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 shiftRight at line 98, overapproximation of someBinaryArithmeticDOUBLEoperation at line 80, overapproximation of someUnaryDOUBLEoperation at line 125, overapproximation of someBinaryDOUBLEComparisonOperation at line 53, overapproximation of someBinaryArithmeticFLOAToperation at line 122. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 10; [L23] unsigned char var_1_4 = 128; [L24] unsigned char var_1_5 = 1; [L25] unsigned long int var_1_6 = 5; [L26] unsigned char var_1_9 = 0; [L27] unsigned char var_1_10 = 64; [L28] unsigned char var_1_11 = 64; [L29] unsigned short int var_1_12 = 25; [L30] unsigned short int var_1_14 = 31408; [L31] double var_1_15 = 64.375; [L32] double var_1_16 = 10.85; [L33] double var_1_17 = 128.8; [L34] double var_1_18 = 2.6; [L35] unsigned char var_1_19 = 0; [L36] unsigned char var_1_20 = 0; [L37] signed short int var_1_21 = -64; [L38] signed long int var_1_22 = -32; [L39] signed char var_1_26 = 25; [L40] signed char var_1_27 = 4; [L41] unsigned long int var_1_28 = 32; [L42] signed short int var_1_30 = 5; [L43] unsigned long int var_1_32 = 4; [L44] float var_1_34 = 31.25; [L45] double var_1_39 = 7.4; [L46] signed long int var_1_44 = 25; [L47] unsigned short int last_1_var_1_12 = 25; [L48] double last_1_var_1_15 = 64.375; [L170] isInitial = 1 [L171] FCALL initially() [L172] COND TRUE 1 [L173] CALL updateLastVariables() [L162] last_1_var_1_12 = var_1_12 [L163] last_1_var_1_15 = var_1_15 [L173] RET updateLastVariables() [L174] CALL updateVariables() [L130] var_1_4 = __VERIFIER_nondet_uchar() [L131] CALL assume_abort_if_not(var_1_4 >= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=64, var_1_11=64, var_1_12=25, var_1_14=31408, var_1_15=515/8, var_1_16=217/20, var_1_17=644/5, var_1_18=13/5, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=25, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=129, var_1_5=1, var_1_6=5, var_1_9=0] [L20] COND FALSE !(!cond) [L131] RET assume_abort_if_not(var_1_4 >= 127) VAL [isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=64, var_1_11=64, var_1_12=25, var_1_14=31408, var_1_15=515/8, var_1_16=217/20, var_1_17=644/5, var_1_18=13/5, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=25, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=129, var_1_5=1, var_1_6=5, var_1_9=0] [L132] CALL assume_abort_if_not(var_1_4 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=64, var_1_11=64, var_1_12=25, var_1_14=31408, var_1_15=515/8, var_1_16=217/20, var_1_17=644/5, var_1_18=13/5, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=25, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=129, var_1_5=1, var_1_6=5, var_1_9=0] [L20] COND FALSE !(!cond) [L132] RET assume_abort_if_not(var_1_4 <= 254) VAL [isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=64, var_1_11=64, var_1_12=25, var_1_14=31408, var_1_15=515/8, var_1_16=217/20, var_1_17=644/5, var_1_18=13/5, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=25, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=129, var_1_5=1, var_1_6=5, var_1_9=0] [L133] var_1_5 = __VERIFIER_nondet_uchar() [L134] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=64, var_1_11=64, var_1_12=25, var_1_14=31408, var_1_15=515/8, var_1_16=217/20, var_1_17=644/5, var_1_18=13/5, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=25, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=129, var_1_5=0, var_1_6=5, var_1_9=0] [L20] COND FALSE !(!cond) [L134] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=64, var_1_11=64, var_1_12=25, var_1_14=31408, var_1_15=515/8, var_1_16=217/20, var_1_17=644/5, var_1_18=13/5, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=25, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=129, var_1_5=0, var_1_6=5, var_1_9=0] [L135] CALL assume_abort_if_not(var_1_5 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=64, var_1_11=64, var_1_12=25, var_1_14=31408, var_1_15=515/8, var_1_16=217/20, var_1_17=644/5, var_1_18=13/5, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=25, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=129, var_1_5=0, var_1_6=5, var_1_9=0] [L20] COND FALSE !(!cond) [L135] RET assume_abort_if_not(var_1_5 <= 127) VAL [isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=64, var_1_11=64, var_1_12=25, var_1_14=31408, var_1_15=515/8, var_1_16=217/20, var_1_17=644/5, var_1_18=13/5, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=25, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=129, var_1_5=0, var_1_6=5, var_1_9=0] [L136] var_1_10 = __VERIFIER_nondet_uchar() [L137] CALL assume_abort_if_not(var_1_10 >= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=63, var_1_11=64, var_1_12=25, var_1_14=31408, var_1_15=515/8, var_1_16=217/20, var_1_17=644/5, var_1_18=13/5, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=25, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=129, var_1_5=0, var_1_6=5, var_1_9=0] [L20] COND FALSE !(!cond) [L137] RET assume_abort_if_not(var_1_10 >= 63) VAL [isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=63, var_1_11=64, var_1_12=25, var_1_14=31408, var_1_15=515/8, var_1_16=217/20, var_1_17=644/5, var_1_18=13/5, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=25, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=129, var_1_5=0, var_1_6=5, var_1_9=0] [L138] CALL assume_abort_if_not(var_1_10 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=63, var_1_11=64, var_1_12=25, var_1_14=31408, var_1_15=515/8, var_1_16=217/20, var_1_17=644/5, var_1_18=13/5, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=25, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=129, var_1_5=0, var_1_6=5, var_1_9=0] [L20] COND FALSE !(!cond) [L138] RET assume_abort_if_not(var_1_10 <= 127) VAL [isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=63, var_1_11=64, var_1_12=25, var_1_14=31408, var_1_15=515/8, var_1_16=217/20, var_1_17=644/5, var_1_18=13/5, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=25, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=129, var_1_5=0, var_1_6=5, var_1_9=0] [L139] var_1_11 = __VERIFIER_nondet_uchar() [L140] CALL assume_abort_if_not(var_1_11 >= 64) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=63, var_1_11=64, var_1_12=25, var_1_14=31408, var_1_15=515/8, var_1_16=217/20, var_1_17=644/5, var_1_18=13/5, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=25, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=129, var_1_5=0, var_1_6=5, var_1_9=0] [L20] COND FALSE !(!cond) [L140] RET assume_abort_if_not(var_1_11 >= 64) VAL [isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=63, var_1_11=64, var_1_12=25, var_1_14=31408, var_1_15=515/8, var_1_16=217/20, var_1_17=644/5, var_1_18=13/5, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=25, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=129, var_1_5=0, var_1_6=5, var_1_9=0] [L141] CALL assume_abort_if_not(var_1_11 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=63, var_1_11=64, var_1_12=25, var_1_14=31408, var_1_15=515/8, var_1_16=217/20, var_1_17=644/5, var_1_18=13/5, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=25, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=129, var_1_5=0, var_1_6=5, var_1_9=0] [L20] COND FALSE !(!cond) [L141] RET assume_abort_if_not(var_1_11 <= 127) VAL [isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=63, var_1_11=64, var_1_12=25, var_1_14=31408, var_1_15=515/8, var_1_16=217/20, var_1_17=644/5, var_1_18=13/5, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=25, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=129, var_1_5=0, var_1_6=5, var_1_9=0] [L142] var_1_14 = __VERIFIER_nondet_ushort() [L143] CALL assume_abort_if_not(var_1_14 >= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=63, var_1_11=64, var_1_12=25, var_1_14=16383, var_1_15=515/8, var_1_16=217/20, var_1_17=644/5, var_1_18=13/5, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=25, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=129, var_1_5=0, var_1_6=5, var_1_9=0] [L20] COND FALSE !(!cond) [L143] RET assume_abort_if_not(var_1_14 >= 16383) VAL [isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=63, var_1_11=64, var_1_12=25, var_1_14=16383, var_1_15=515/8, var_1_16=217/20, var_1_17=644/5, var_1_18=13/5, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=25, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=129, var_1_5=0, var_1_6=5, var_1_9=0] [L144] CALL assume_abort_if_not(var_1_14 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=63, var_1_11=64, var_1_12=25, var_1_14=16383, var_1_15=515/8, var_1_16=217/20, var_1_17=644/5, var_1_18=13/5, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=25, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=129, var_1_5=0, var_1_6=5, var_1_9=0] [L20] COND FALSE !(!cond) [L144] RET assume_abort_if_not(var_1_14 <= 32767) VAL [isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=63, var_1_11=64, var_1_12=25, var_1_14=16383, var_1_15=515/8, var_1_16=217/20, var_1_17=644/5, var_1_18=13/5, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=25, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=129, var_1_5=0, var_1_6=5, var_1_9=0] [L145] var_1_16 = __VERIFIER_nondet_double() [L146] CALL assume_abort_if_not((var_1_16 >= 0.0F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 9223372.036854765600e+12F && var_1_16 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=63, var_1_11=64, var_1_12=25, var_1_14=16383, var_1_15=515/8, var_1_16=2, var_1_17=644/5, var_1_18=13/5, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=25, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=129, var_1_5=0, var_1_6=5, var_1_9=0] [L20] COND FALSE !(!cond) [L146] RET assume_abort_if_not((var_1_16 >= 0.0F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 9223372.036854765600e+12F && var_1_16 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=63, var_1_11=64, var_1_12=25, var_1_14=16383, var_1_15=515/8, var_1_16=2, var_1_17=644/5, var_1_18=13/5, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=25, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=129, var_1_5=0, var_1_6=5, var_1_9=0] [L147] var_1_17 = __VERIFIER_nondet_double() [L148] CALL assume_abort_if_not((var_1_17 >= -922337.2036854765600e+13F && var_1_17 <= -1.0e-20F) || (var_1_17 <= 9223372.036854765600e+12F && var_1_17 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=63, var_1_11=64, var_1_12=25, var_1_14=16383, var_1_15=515/8, var_1_16=2, var_1_17=3, var_1_18=13/5, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=25, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=129, var_1_5=0, var_1_6=5, var_1_9=0] [L20] COND FALSE !(!cond) [L148] RET assume_abort_if_not((var_1_17 >= -922337.2036854765600e+13F && var_1_17 <= -1.0e-20F) || (var_1_17 <= 9223372.036854765600e+12F && var_1_17 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=63, var_1_11=64, var_1_12=25, var_1_14=16383, var_1_15=515/8, var_1_16=2, var_1_17=3, var_1_18=13/5, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=25, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=129, var_1_5=0, var_1_6=5, var_1_9=0] [L149] var_1_18 = __VERIFIER_nondet_double() [L150] CALL assume_abort_if_not((var_1_18 >= -922337.2036854765600e+13F && var_1_18 <= -1.0e-20F) || (var_1_18 <= 9223372.036854765600e+12F && var_1_18 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=63, var_1_11=64, var_1_12=25, var_1_14=16383, var_1_15=515/8, var_1_16=2, var_1_17=3, var_1_18=4, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=25, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=129, var_1_5=0, var_1_6=5, var_1_9=0] [L20] COND FALSE !(!cond) [L150] RET assume_abort_if_not((var_1_18 >= -922337.2036854765600e+13F && var_1_18 <= -1.0e-20F) || (var_1_18 <= 9223372.036854765600e+12F && var_1_18 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=63, var_1_11=64, var_1_12=25, var_1_14=16383, var_1_15=515/8, var_1_16=2, var_1_17=3, var_1_18=4, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=25, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=129, var_1_5=0, var_1_6=5, var_1_9=0] [L151] var_1_20 = __VERIFIER_nondet_uchar() [L152] CALL assume_abort_if_not(var_1_20 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=63, var_1_11=64, var_1_12=25, var_1_14=16383, var_1_15=515/8, var_1_16=2, var_1_17=3, var_1_18=4, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=25, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=129, var_1_5=0, var_1_6=5, var_1_9=0] [L20] COND FALSE !(!cond) [L152] RET assume_abort_if_not(var_1_20 >= 0) VAL [isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=63, var_1_11=64, var_1_12=25, var_1_14=16383, var_1_15=515/8, var_1_16=2, var_1_17=3, var_1_18=4, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=25, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=129, var_1_5=0, var_1_6=5, var_1_9=0] [L153] CALL assume_abort_if_not(var_1_20 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=63, var_1_11=64, var_1_12=25, var_1_14=16383, var_1_15=515/8, var_1_16=2, var_1_17=3, var_1_18=4, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=25, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=129, var_1_5=0, var_1_6=5, var_1_9=0] [L20] COND FALSE !(!cond) [L153] RET assume_abort_if_not(var_1_20 <= 0) VAL [isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=63, var_1_11=64, var_1_12=25, var_1_14=16383, var_1_15=515/8, var_1_16=2, var_1_17=3, var_1_18=4, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=25, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=129, var_1_5=0, var_1_6=5, var_1_9=0] [L154] var_1_26 = __VERIFIER_nondet_char() [L155] CALL assume_abort_if_not(var_1_26 >= 16) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=63, var_1_11=64, var_1_12=25, var_1_14=16383, var_1_15=515/8, var_1_16=2, var_1_17=3, var_1_18=4, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=17, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=129, var_1_5=0, var_1_6=5, var_1_9=0] [L20] COND FALSE !(!cond) [L155] RET assume_abort_if_not(var_1_26 >= 16) VAL [isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=63, var_1_11=64, var_1_12=25, var_1_14=16383, var_1_15=515/8, var_1_16=2, var_1_17=3, var_1_18=4, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=17, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=129, var_1_5=0, var_1_6=5, var_1_9=0] [L156] CALL assume_abort_if_not(var_1_26 <= 32) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=63, var_1_11=64, var_1_12=25, var_1_14=16383, var_1_15=515/8, var_1_16=2, var_1_17=3, var_1_18=4, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=17, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=129, var_1_5=0, var_1_6=5, var_1_9=0] [L20] COND FALSE !(!cond) [L156] RET assume_abort_if_not(var_1_26 <= 32) VAL [isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=63, var_1_11=64, var_1_12=25, var_1_14=16383, var_1_15=515/8, var_1_16=2, var_1_17=3, var_1_18=4, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=17, var_1_27=4, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=129, var_1_5=0, var_1_6=5, var_1_9=0] [L157] var_1_27 = __VERIFIER_nondet_char() [L158] CALL assume_abort_if_not(var_1_27 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=63, var_1_11=64, var_1_12=25, var_1_14=16383, var_1_15=515/8, var_1_16=2, var_1_17=3, var_1_18=4, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=17, var_1_27=16, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=129, var_1_5=0, var_1_6=5, var_1_9=0] [L20] COND FALSE !(!cond) [L158] RET assume_abort_if_not(var_1_27 >= 0) VAL [isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=63, var_1_11=64, var_1_12=25, var_1_14=16383, var_1_15=515/8, var_1_16=2, var_1_17=3, var_1_18=4, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=17, var_1_27=16, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=129, var_1_5=0, var_1_6=5, var_1_9=0] [L159] CALL assume_abort_if_not(var_1_27 <= 16) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=63, var_1_11=64, var_1_12=25, var_1_14=16383, var_1_15=515/8, var_1_16=2, var_1_17=3, var_1_18=4, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=17, var_1_27=16, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=129, var_1_5=0, var_1_6=5, var_1_9=0] [L20] COND FALSE !(!cond) [L159] RET assume_abort_if_not(var_1_27 <= 16) VAL [isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=63, var_1_11=64, var_1_12=25, var_1_14=16383, var_1_15=515/8, var_1_16=2, var_1_17=3, var_1_18=4, var_1_19=0, var_1_1=10, var_1_20=0, var_1_21=-64, var_1_22=-32, var_1_26=17, var_1_27=16, var_1_28=32, var_1_30=5, var_1_32=4, var_1_34=125/4, var_1_39=37/5, var_1_44=25, var_1_4=129, var_1_5=0, var_1_6=5, var_1_9=0] [L174] RET updateVariables() [L175] CALL step() [L52] COND FALSE !(last_1_var_1_12 > var_1_4) [L57] COND FALSE !(((- 64) + var_1_6) == var_1_6) [L60] var_1_1 = (((((128) < (var_1_4)) ? (128) : (var_1_4))) - 64) [L62] COND TRUE var_1_17 == ((((32.5) < (var_1_15)) ? (32.5) : (var_1_15))) [L63] var_1_30 = var_1_27 [L73] COND TRUE var_1_5 == (var_1_6 / var_1_4) [L74] var_1_9 = ((((var_1_5) < (((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4))))) ? (var_1_5) : (((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4)))))) [L78] COND FALSE !(-256 < (var_1_6 * 10)) [L83] var_1_39 = var_1_16 [L85] var_1_21 = var_1_10 [L86] COND TRUE 8.4 <= var_1_15 [L87] var_1_28 = (((((((var_1_5) < (var_1_1)) ? (var_1_5) : (var_1_1))) < 0 ) ? -((((var_1_5) < (var_1_1)) ? (var_1_5) : (var_1_1))) : ((((var_1_5) < (var_1_1)) ? (var_1_5) : (var_1_1))))) [L91] unsigned long int stepLocal_3 = var_1_6; [L92] unsigned char stepLocal_2 = var_1_4; [L93] COND FALSE !(stepLocal_2 < var_1_1) [L98] EXPR ((((var_1_6) < (var_1_4)) ? (var_1_6) : (var_1_4))) >> (var_1_26 - var_1_27) [L98] COND FALSE !(var_1_4 <= (((((var_1_6) < (var_1_4)) ? (var_1_6) : (var_1_4))) >> (var_1_26 - var_1_27))) [L101] var_1_22 = var_1_4 [L103] unsigned long int stepLocal_0 = (((var_1_6) > (var_1_4)) ? (var_1_6) : (var_1_4)); [L104] COND TRUE ((((var_1_21) < 0 ) ? -(var_1_21) : (var_1_21))) <= stepLocal_0 [L105] var_1_12 = ((var_1_14 - var_1_5) + ((((var_1_6) < 0 ) ? -(var_1_6) : (var_1_6)))) [L109] COND FALSE !(\read(var_1_20)) [L112] var_1_44 = var_1_4 [L113] signed long int stepLocal_1 = ~ (var_1_5 * var_1_1); [L114] COND TRUE stepLocal_1 <= var_1_12 [L115] var_1_15 = (((((5.25 - var_1_16)) > (var_1_17)) ? ((5.25 - var_1_16)) : (var_1_17))) [L119] COND FALSE !(\read(var_1_20)) [L175] RET step() [L176] CALL, EXPR property() [L166-L167] return (((((((((- 64) + var_1_6) == var_1_6) ? (var_1_1 == ((unsigned char) (((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4))) - var_1_5))) : (var_1_1 == ((unsigned char) (((((128) < (var_1_4)) ? (128) : (var_1_4))) - 64)))) && ((last_1_var_1_12 > var_1_4) ? (((- last_1_var_1_15) < last_1_var_1_15) ? (var_1_6 == ((unsigned long int) 10u)) : 1) : 1)) && ((var_1_5 == (var_1_6 / var_1_4)) ? (var_1_9 == ((unsigned char) ((((var_1_5) < (((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4))))) ? (var_1_5) : (((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4)))))))) : (var_1_9 == ((unsigned char) ((var_1_10 + var_1_11) - var_1_5))))) && ((((((var_1_21) < 0 ) ? -(var_1_21) : (var_1_21))) <= ((((var_1_6) > (var_1_4)) ? (var_1_6) : (var_1_4)))) ? (var_1_12 == ((unsigned short int) ((var_1_14 - var_1_5) + ((((var_1_6) < 0 ) ? -(var_1_6) : (var_1_6)))))) : (var_1_12 == ((unsigned short int) var_1_6)))) && (((~ (var_1_5 * var_1_1)) <= var_1_12) ? (var_1_15 == ((double) (((((5.25 - var_1_16)) > (var_1_17)) ? ((5.25 - var_1_16)) : (var_1_17))))) : (var_1_15 == ((double) ((((((((var_1_17) < (var_1_16)) ? (var_1_17) : (var_1_16)))) < (var_1_18)) ? (((((var_1_17) < (var_1_16)) ? (var_1_17) : (var_1_16)))) : (var_1_18))))))) && ((var_1_4 < var_1_1) ? ((var_1_6 > var_1_21) ? (var_1_19 == ((unsigned char) var_1_20)) : 1) : 1)) && (var_1_21 == ((signed short int) var_1_10)) ; [L176] RET, EXPR property() [L176] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=63, var_1_11=64, var_1_12=16388, var_1_14=16383, var_1_15=5, var_1_16=2, var_1_17=3, var_1_18=4, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=63, var_1_22=129, var_1_26=17, var_1_27=16, var_1_28=0, var_1_30=16, var_1_32=4, var_1_34=125/4, var_1_39=2, var_1_44=129, var_1_4=129, var_1_5=0, var_1_6=5, var_1_9=0] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_12=25, last_1_var_1_15=515/8, var_1_10=63, var_1_11=64, var_1_12=16388, var_1_14=16383, var_1_15=5, var_1_16=2, var_1_17=3, var_1_18=4, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=63, var_1_22=129, var_1_26=17, var_1_27=16, var_1_28=0, var_1_30=16, var_1_32=4, var_1_34=125/4, var_1_39=2, var_1_44=129, var_1_4=129, var_1_5=0, var_1_6=5, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 1, TraceHistogramMax: 19, 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=39occurred 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, 0.8s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 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 05:06:42,156 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da60513-6c1f-4882-b145-25d5e4acad21/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da60513-6c1f-4882-b145-25d5e4acad21/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da60513-6c1f-4882-b145-25d5e4acad21/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_5da60513-6c1f-4882-b145-25d5e4acad21/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da60513-6c1f-4882-b145-25d5e4acad21/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da60513-6c1f-4882-b145-25d5e4acad21/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_5da60513-6c1f-4882-b145-25d5e4acad21/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 ba06880449cc9eb48584427dad875518cd896e20dec3ed5b33045e3e8689f7a3 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:06:44,919 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:06:45,053 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da60513-6c1f-4882-b145-25d5e4acad21/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-19 05:06:45,063 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:06:45,064 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:06:45,107 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:06:45,108 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:06:45,108 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:06:45,109 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:06:45,111 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:06:45,111 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:06:45,112 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:06:45,112 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:06:45,113 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:06:45,113 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:06:45,114 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:06:45,115 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:06:45,115 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:06:45,116 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:06:45,116 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:06:45,116 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:06:45,124 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:06:45,124 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:06:45,124 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:06:45,125 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 05:06:45,125 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 05:06:45,126 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 05:06:45,126 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:06:45,127 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:06:45,127 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:06:45,129 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:06:45,129 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 05:06:45,129 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:06:45,130 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:06:45,130 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:06:45,130 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:06:45,131 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:06:45,131 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 05:06:45,131 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 05:06:45,132 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:06:45,133 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:06:45,133 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:06:45,133 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_5da60513-6c1f-4882-b145-25d5e4acad21/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da60513-6c1f-4882-b145-25d5e4acad21/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ba06880449cc9eb48584427dad875518cd896e20dec3ed5b33045e3e8689f7a3 [2023-11-19 05:06:45,580 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:06:45,616 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:06:45,619 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:06:45,621 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:06:45,621 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:06:45,623 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da60513-6c1f-4882-b145-25d5e4acad21/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-5.i [2023-11-19 05:06:48,826 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:06:49,103 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:06:49,103 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da60513-6c1f-4882-b145-25d5e4acad21/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-5.i [2023-11-19 05:06:49,114 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da60513-6c1f-4882-b145-25d5e4acad21/bin/utaipan-verify-t7M7D8N6sZ/data/1d50aa178/672207dc357f45d1812db7dfecb5969a/FLAG7c95e3ee1 [2023-11-19 05:06:49,130 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da60513-6c1f-4882-b145-25d5e4acad21/bin/utaipan-verify-t7M7D8N6sZ/data/1d50aa178/672207dc357f45d1812db7dfecb5969a [2023-11-19 05:06:49,132 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:06:49,134 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:06:49,136 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:06:49,136 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:06:49,141 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:06:49,142 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:06:49" (1/1) ... [2023-11-19 05:06:49,144 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a1f25c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:49, skipping insertion in model container [2023-11-19 05:06:49,144 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:06:49" (1/1) ... [2023-11-19 05:06:49,178 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:06:49,382 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_5da60513-6c1f-4882-b145-25d5e4acad21/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-5.i[918,931] [2023-11-19 05:06:49,492 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:06:49,548 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:06:49,570 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_5da60513-6c1f-4882-b145-25d5e4acad21/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-5.i[918,931] [2023-11-19 05:06:49,662 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:06:49,690 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:06:49,690 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:49 WrapperNode [2023-11-19 05:06:49,691 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:06:49,692 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:06:49,693 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:06:49,693 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:06:49,702 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:49" (1/1) ... [2023-11-19 05:06:49,734 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:49" (1/1) ... [2023-11-19 05:06:49,786 INFO L138 Inliner]: procedures = 27, calls = 32, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 162 [2023-11-19 05:06:49,788 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:06:49,790 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:06:49,790 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:06:49,790 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:06:49,802 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:49" (1/1) ... [2023-11-19 05:06:49,802 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:49" (1/1) ... [2023-11-19 05:06:49,823 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:49" (1/1) ... [2023-11-19 05:06:49,825 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:49" (1/1) ... [2023-11-19 05:06:49,844 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:49" (1/1) ... [2023-11-19 05:06:49,863 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:49" (1/1) ... [2023-11-19 05:06:49,867 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:49" (1/1) ... [2023-11-19 05:06:49,870 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:49" (1/1) ... [2023-11-19 05:06:49,875 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:06:49,876 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:06:49,877 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:06:49,877 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:06:49,878 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:49" (1/1) ... [2023-11-19 05:06:49,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:06:49,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da60513-6c1f-4882-b145-25d5e4acad21/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:06:49,916 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da60513-6c1f-4882-b145-25d5e4acad21/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:06:49,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da60513-6c1f-4882-b145-25d5e4acad21/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:06:49,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:06:49,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 05:06:49,975 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:06:49,975 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:06:49,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:06:49,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:06:50,079 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:06:50,081 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:06:50,985 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:06:51,001 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:06:51,002 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:06:51,008 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:06:51 BoogieIcfgContainer [2023-11-19 05:06:51,009 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:06:51,012 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:06:51,013 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:06:51,017 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:06:51,017 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:06:49" (1/3) ... [2023-11-19 05:06:51,018 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5186d6bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:06:51, skipping insertion in model container [2023-11-19 05:06:51,018 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:49" (2/3) ... [2023-11-19 05:06:51,020 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5186d6bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:06:51, skipping insertion in model container [2023-11-19 05:06:51,020 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:06:51" (3/3) ... [2023-11-19 05:06:51,022 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-ci_file-5.i [2023-11-19 05:06:51,043 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:06:51,043 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:06:51,121 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:06:51,130 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;@2099e2b6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:06:51,130 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:06:51,136 INFO L276 IsEmpty]: Start isEmpty. Operand has 72 states, 50 states have (on average 1.48) internal successors, (74), 51 states have internal predecessors, (74), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-19 05:06:51,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-19 05:06:51,157 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:06:51,159 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:06:51,161 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:06:51,168 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:06:51,169 INFO L85 PathProgramCache]: Analyzing trace with hash -1569428030, now seen corresponding path program 1 times [2023-11-19 05:06:51,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:06:51,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [161302546] [2023-11-19 05:06:51,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:06:51,190 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 05:06:51,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da60513-6c1f-4882-b145-25d5e4acad21/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:06:51,195 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da60513-6c1f-4882-b145-25d5e4acad21/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 05:06:51,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da60513-6c1f-4882-b145-25d5e4acad21/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 05:06:51,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:06:51,586 INFO L262 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 05:06:51,598 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:06:51,653 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 344 proven. 0 refuted. 0 times theorem prover too weak. 340 trivial. 0 not checked. [2023-11-19 05:06:51,653 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:06:51,654 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:06:51,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [161302546] [2023-11-19 05:06:51,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [161302546] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:06:51,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:06:51,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:06:51,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130424418] [2023-11-19 05:06:51,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:06:51,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 05:06:51,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:06:51,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 05:06:51,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 05:06:51,712 INFO L87 Difference]: Start difference. First operand has 72 states, 50 states have (on average 1.48) internal successors, (74), 51 states have internal predecessors, (74), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-19 05:06:51,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:06:51,780 INFO L93 Difference]: Finished difference Result 137 states and 237 transitions. [2023-11-19 05:06:51,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 05:06:51,783 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 131 [2023-11-19 05:06:51,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:06:51,794 INFO L225 Difference]: With dead ends: 137 [2023-11-19 05:06:51,794 INFO L226 Difference]: Without dead ends: 68 [2023-11-19 05:06:51,800 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 130 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 05:06:51,804 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 05:06:51,806 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 05:06:51,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2023-11-19 05:06:51,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2023-11-19 05:06:51,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 47 states have (on average 1.4042553191489362) internal successors, (66), 47 states have internal predecessors, (66), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-19 05:06:51,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 104 transitions. [2023-11-19 05:06:51,873 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 104 transitions. Word has length 131 [2023-11-19 05:06:51,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:06:51,873 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 104 transitions. [2023-11-19 05:06:51,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-19 05:06:51,874 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 104 transitions. [2023-11-19 05:06:51,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-19 05:06:51,880 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:06:51,880 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:06:51,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da60513-6c1f-4882-b145-25d5e4acad21/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 05:06:52,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da60513-6c1f-4882-b145-25d5e4acad21/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 05:06:52,084 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:06:52,085 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:06:52,085 INFO L85 PathProgramCache]: Analyzing trace with hash 464173770, now seen corresponding path program 1 times [2023-11-19 05:06:52,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:06:52,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [954220582] [2023-11-19 05:06:52,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:06:52,086 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 05:06:52,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da60513-6c1f-4882-b145-25d5e4acad21/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:06:52,088 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da60513-6c1f-4882-b145-25d5e4acad21/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 05:06:52,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da60513-6c1f-4882-b145-25d5e4acad21/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 05:06:52,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:06:52,472 INFO L262 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 05:06:52,479 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:06:52,828 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 270 proven. 12 refuted. 0 times theorem prover too weak. 402 trivial. 0 not checked. [2023-11-19 05:06:52,829 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:06:53,195 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 42 proven. 12 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2023-11-19 05:06:53,195 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:06:53,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [954220582] [2023-11-19 05:06:53,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [954220582] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:06:53,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [95050222] [2023-11-19 05:06:53,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:06:53,197 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 05:06:53,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da60513-6c1f-4882-b145-25d5e4acad21/bin/utaipan-verify-t7M7D8N6sZ/cvc4 [2023-11-19 05:06:53,238 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da60513-6c1f-4882-b145-25d5e4acad21/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 05:06:53,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da60513-6c1f-4882-b145-25d5e4acad21/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-19 05:06:53,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:06:53,919 INFO L262 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 05:06:53,935 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:06:53,984 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-11-19 05:06:53,985 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:06:53,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [95050222] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:06:53,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-19 05:06:53,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 5] total 8 [2023-11-19 05:06:53,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691243135] [2023-11-19 05:06:53,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:06:53,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:06:53,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:06:53,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:06:53,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-19 05:06:53,993 INFO L87 Difference]: Start difference. First operand 68 states and 104 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-19 05:06:54,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:06:54,514 INFO L93 Difference]: Finished difference Result 169 states and 255 transitions. [2023-11-19 05:06:54,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:06:54,515 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 131 [2023-11-19 05:06:54,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:06:54,519 INFO L225 Difference]: With dead ends: 169 [2023-11-19 05:06:54,519 INFO L226 Difference]: Without dead ends: 104 [2023-11-19 05:06:54,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 383 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-19 05:06:54,522 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 49 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-19 05:06:54,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 235 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-19 05:06:54,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2023-11-19 05:06:54,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 101. [2023-11-19 05:06:54,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 66 states have (on average 1.303030303030303) internal successors, (86), 67 states have internal predecessors, (86), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-19 05:06:54,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 150 transitions. [2023-11-19 05:06:54,546 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 150 transitions. Word has length 131 [2023-11-19 05:06:54,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:06:54,548 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 150 transitions. [2023-11-19 05:06:54,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-19 05:06:54,548 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 150 transitions. [2023-11-19 05:06:54,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-19 05:06:54,551 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:06:54,551 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:06:54,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da60513-6c1f-4882-b145-25d5e4acad21/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-11-19 05:06:54,762 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da60513-6c1f-4882-b145-25d5e4acad21/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-19 05:06:54,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da60513-6c1f-4882-b145-25d5e4acad21/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da60513-6c1f-4882-b145-25d5e4acad21/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 05:06:54,956 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:06:54,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:06:54,957 INFO L85 PathProgramCache]: Analyzing trace with hash -345172856, now seen corresponding path program 1 times [2023-11-19 05:06:54,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:06:54,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [564290602] [2023-11-19 05:06:54,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:06:54,959 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 05:06:54,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da60513-6c1f-4882-b145-25d5e4acad21/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:06:54,960 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da60513-6c1f-4882-b145-25d5e4acad21/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 05:06:54,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da60513-6c1f-4882-b145-25d5e4acad21/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 05:06:55,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:06:55,312 INFO L262 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 05:06:55,319 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:06:55,374 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-11-19 05:06:55,374 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:06:55,375 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:06:55,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [564290602] [2023-11-19 05:06:55,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [564290602] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:06:55,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:06:55,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:06:55,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250084986] [2023-11-19 05:06:55,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:06:55,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:06:55,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:06:55,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:06:55,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:06:55,380 INFO L87 Difference]: Start difference. First operand 101 states and 150 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-19 05:06:56,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:06:56,033 INFO L93 Difference]: Finished difference Result 199 states and 297 transitions. [2023-11-19 05:06:56,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:06:56,046 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 131 [2023-11-19 05:06:56,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:06:56,050 INFO L225 Difference]: With dead ends: 199 [2023-11-19 05:06:56,051 INFO L226 Difference]: Without dead ends: 101 [2023-11-19 05:06:56,053 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 05:06:56,055 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 6 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-19 05:06:56,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 194 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-19 05:06:56,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2023-11-19 05:06:56,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2023-11-19 05:06:56,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 66 states have (on average 1.2727272727272727) internal successors, (84), 67 states have internal predecessors, (84), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-19 05:06:56,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 148 transitions. [2023-11-19 05:06:56,079 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 148 transitions. Word has length 131 [2023-11-19 05:06:56,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:06:56,080 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 148 transitions. [2023-11-19 05:06:56,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-19 05:06:56,081 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 148 transitions. [2023-11-19 05:06:56,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-19 05:06:56,084 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:06:56,084 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:06:56,094 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da60513-6c1f-4882-b145-25d5e4acad21/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)] Forceful destruction successful, exit code 0 [2023-11-19 05:06:56,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da60513-6c1f-4882-b145-25d5e4acad21/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 05:06:56,293 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:06:56,294 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:06:56,294 INFO L85 PathProgramCache]: Analyzing trace with hash -402431158, now seen corresponding path program 1 times [2023-11-19 05:06:56,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:06:56,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1016857050] [2023-11-19 05:06:56,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:06:56,296 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 05:06:56,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da60513-6c1f-4882-b145-25d5e4acad21/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:06:56,297 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da60513-6c1f-4882-b145-25d5e4acad21/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 05:06:56,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da60513-6c1f-4882-b145-25d5e4acad21/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 05:06:56,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:06:56,577 INFO L262 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 05:06:56,590 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:06:57,962 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 18 proven. 54 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-19 05:06:57,963 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:06:58,230 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:06:58,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1016857050] [2023-11-19 05:06:58,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1016857050] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:06:58,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2050182808] [2023-11-19 05:06:58,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:06:58,231 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 05:06:58,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da60513-6c1f-4882-b145-25d5e4acad21/bin/utaipan-verify-t7M7D8N6sZ/cvc4 [2023-11-19 05:06:58,236 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da60513-6c1f-4882-b145-25d5e4acad21/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 05:06:58,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da60513-6c1f-4882-b145-25d5e4acad21/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-11-19 05:06:59,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:06:59,676 INFO L262 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 05:06:59,679 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:07:00,704 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 18 proven. 54 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-19 05:07:00,705 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:07:00,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2050182808] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:07:00,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [511264209] [2023-11-19 05:07:00,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:07:00,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:07:00,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da60513-6c1f-4882-b145-25d5e4acad21/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:07:00,891 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da60513-6c1f-4882-b145-25d5e4acad21/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:07:00,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da60513-6c1f-4882-b145-25d5e4acad21/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-19 05:07:01,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:07:01,168 INFO L262 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-19 05:07:01,175 INFO L285 TraceCheckSpWp]: Computing forward predicates...