./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal29.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f72d28d-9bf6-4ace-a07a-6bd2f86f798b/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f72d28d-9bf6-4ace-a07a-6bd2f86f798b/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f72d28d-9bf6-4ace-a07a-6bd2f86f798b/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f72d28d-9bf6-4ace-a07a-6bd2f86f798b/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal29.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f72d28d-9bf6-4ace-a07a-6bd2f86f798b/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f72d28d-9bf6-4ace-a07a-6bd2f86f798b/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ca3bb2f7c660d0ed949b0e7db28315a981891dfb011c2a841c60a9a7f334ca81 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 18:20:26,575 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 18:20:26,643 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f72d28d-9bf6-4ace-a07a-6bd2f86f798b/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-12-02 18:20:26,648 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 18:20:26,649 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 18:20:26,673 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 18:20:26,673 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 18:20:26,674 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 18:20:26,675 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 18:20:26,675 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 18:20:26,676 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 18:20:26,676 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 18:20:26,677 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 18:20:26,677 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 18:20:26,678 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 18:20:26,678 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 18:20:26,679 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 18:20:26,680 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 18:20:26,680 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 18:20:26,681 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 18:20:26,681 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 18:20:26,682 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 18:20:26,683 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 18:20:26,683 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 18:20:26,683 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 18:20:26,684 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 18:20:26,684 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 18:20:26,685 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 18:20:26,685 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 18:20:26,686 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 18:20:26,686 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 18:20:26,686 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 18:20:26,687 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 18:20:26,687 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 18:20:26,687 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:20:26,687 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 18:20:26,688 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 18:20:26,688 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 18:20:26,688 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 18:20:26,688 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 18:20:26,689 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 18:20:26,689 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 18:20:26,689 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 18:20:26,689 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 18:20:26,690 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_8f72d28d-9bf6-4ace-a07a-6bd2f86f798b/bin/utaipan-verify-nQ1chXbOIh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f72d28d-9bf6-4ace-a07a-6bd2f86f798b/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca3bb2f7c660d0ed949b0e7db28315a981891dfb011c2a841c60a9a7f334ca81 [2023-12-02 18:20:26,906 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 18:20:26,924 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 18:20:26,927 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 18:20:26,928 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 18:20:26,928 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 18:20:26,929 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f72d28d-9bf6-4ace-a07a-6bd2f86f798b/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal29.c [2023-12-02 18:20:29,644 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 18:20:30,221 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 18:20:30,221 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f72d28d-9bf6-4ace-a07a-6bd2f86f798b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal29.c [2023-12-02 18:20:30,265 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f72d28d-9bf6-4ace-a07a-6bd2f86f798b/bin/utaipan-verify-nQ1chXbOIh/data/e28708ba5/51e95421116a4ba4a8cd00aa75b8d58f/FLAGdb0c8ddfd [2023-12-02 18:20:30,278 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f72d28d-9bf6-4ace-a07a-6bd2f86f798b/bin/utaipan-verify-nQ1chXbOIh/data/e28708ba5/51e95421116a4ba4a8cd00aa75b8d58f [2023-12-02 18:20:30,280 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 18:20:30,282 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 18:20:30,283 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 18:20:30,283 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 18:20:30,288 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 18:20:30,289 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:20:30" (1/1) ... [2023-12-02 18:20:30,290 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c9d4981 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:20:30, skipping insertion in model container [2023-12-02 18:20:30,290 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:20:30" (1/1) ... [2023-12-02 18:20:30,447 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 18:20:30,716 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_8f72d28d-9bf6-4ace-a07a-6bd2f86f798b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal29.c[1245,1258] [2023-12-02 18:20:31,934 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:20:31,943 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 18:20:31,953 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_8f72d28d-9bf6-4ace-a07a-6bd2f86f798b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal29.c[1245,1258] [2023-12-02 18:20:32,797 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:20:32,812 INFO L206 MainTranslator]: Completed translation [2023-12-02 18:20:32,813 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:20:32 WrapperNode [2023-12-02 18:20:32,813 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 18:20:32,815 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 18:20:32,815 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 18:20:32,815 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 18:20:32,822 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:20:32" (1/1) ... [2023-12-02 18:20:33,175 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:20:32" (1/1) ... [2023-12-02 18:20:36,207 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 45466 [2023-12-02 18:20:36,207 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 18:20:36,208 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 18:20:36,208 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 18:20:36,208 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 18:20:36,216 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:20:32" (1/1) ... [2023-12-02 18:20:36,216 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:20:32" (1/1) ... [2023-12-02 18:20:36,903 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:20:32" (1/1) ... [2023-12-02 18:20:36,903 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:20:32" (1/1) ... [2023-12-02 18:20:37,591 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:20:32" (1/1) ... [2023-12-02 18:20:37,708 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:20:32" (1/1) ... [2023-12-02 18:20:38,000 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:20:32" (1/1) ... [2023-12-02 18:20:38,122 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:20:32" (1/1) ... [2023-12-02 18:20:38,632 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 18:20:38,633 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 18:20:38,633 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 18:20:38,633 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 18:20:38,634 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:20:32" (1/1) ... [2023-12-02 18:20:38,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:20:38,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f72d28d-9bf6-4ace-a07a-6bd2f86f798b/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:20:38,662 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f72d28d-9bf6-4ace-a07a-6bd2f86f798b/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 18:20:38,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f72d28d-9bf6-4ace-a07a-6bd2f86f798b/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 18:20:38,692 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 18:20:38,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 18:20:38,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 18:20:38,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 18:20:40,722 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 18:20:40,723 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 18:21:07,265 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 18:23:07,313 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 18:23:07,313 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 18:23:07,314 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:23:07 BoogieIcfgContainer [2023-12-02 18:23:07,314 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 18:23:07,317 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 18:23:07,317 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 18:23:07,319 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 18:23:07,320 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:20:30" (1/3) ... [2023-12-02 18:23:07,320 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c4a38d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:23:07, skipping insertion in model container [2023-12-02 18:23:07,320 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:20:32" (2/3) ... [2023-12-02 18:23:07,320 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c4a38d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:23:07, skipping insertion in model container [2023-12-02 18:23:07,321 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:23:07" (3/3) ... [2023-12-02 18:23:07,322 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal29.c [2023-12-02 18:23:07,338 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 18:23:07,338 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 18:23:07,382 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 18:23:07,387 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;@50915d76, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 18:23:07,387 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 18:23:07,390 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:23:07,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-02 18:23:07,394 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:23:07,395 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-12-02 18:23:07,395 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:23:07,589 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:23:07,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1720689151, now seen corresponding path program 1 times [2023-12-02 18:23:07,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:23:07,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878885597] [2023-12-02 18:23:07,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:23:07,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:23:08,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 18:23:08,586 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 18:23:09,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 18:23:09,634 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 18:23:09,635 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 18:23:09,636 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 18:23:09,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 18:23:09,641 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 18:23:09,644 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 18:23:09,688 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-12-02 18:23:09,709 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 06:23:09 BoogieIcfgContainer [2023-12-02 18:23:09,709 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 18:23:09,709 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 18:23:09,710 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 18:23:09,710 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 18:23:09,710 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:23:07" (3/4) ... [2023-12-02 18:23:09,712 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 18:23:09,713 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 18:23:09,714 INFO L158 Benchmark]: Toolchain (without parser) took 159432.57ms. Allocated memory was 167.8MB in the beginning and 12.7GB in the end (delta: 12.5GB). Free memory was 122.8MB in the beginning and 9.7GB in the end (delta: -9.6GB). Peak memory consumption was 2.9GB. Max. memory is 16.1GB. [2023-12-02 18:23:09,715 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 125.8MB. Free memory is still 99.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 18:23:09,716 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2530.92ms. Allocated memory was 167.8MB in the beginning and 362.8MB in the end (delta: 195.0MB). Free memory was 122.6MB in the beginning and 106.2MB in the end (delta: 16.4MB). Peak memory consumption was 248.1MB. Max. memory is 16.1GB. [2023-12-02 18:23:09,716 INFO L158 Benchmark]: Boogie Procedure Inliner took 3392.60ms. Allocated memory was 362.8MB in the beginning and 1.9GB in the end (delta: 1.5GB). Free memory was 106.2MB in the beginning and 1.1GB in the end (delta: -999.3MB). Peak memory consumption was 591.4MB. Max. memory is 16.1GB. [2023-12-02 18:23:09,717 INFO L158 Benchmark]: Boogie Preprocessor took 2424.27ms. Allocated memory was 1.9GB in the beginning and 5.6GB in the end (delta: 3.8GB). Free memory was 1.1GB in the beginning and 4.6GB in the end (delta: -3.5GB). Peak memory consumption was 284.2MB. Max. memory is 16.1GB. [2023-12-02 18:23:09,718 INFO L158 Benchmark]: RCFGBuilder took 148681.80ms. Allocated memory was 5.6GB in the beginning and 12.5GB in the end (delta: 6.8GB). Free memory was 4.6GB in the beginning and 9.3GB in the end (delta: -4.7GB). Peak memory consumption was 6.7GB. Max. memory is 16.1GB. [2023-12-02 18:23:09,719 INFO L158 Benchmark]: TraceAbstraction took 2392.12ms. Allocated memory was 12.5GB in the beginning and 12.7GB in the end (delta: 220.2MB). Free memory was 9.3GB in the beginning and 9.7GB in the end (delta: -406.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 18:23:09,719 INFO L158 Benchmark]: Witness Printer took 4.04ms. Allocated memory is still 12.7GB. Free memory was 9.7GB in the beginning and 9.7GB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 18:23:09,723 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 125.8MB. Free memory is still 99.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2530.92ms. Allocated memory was 167.8MB in the beginning and 362.8MB in the end (delta: 195.0MB). Free memory was 122.6MB in the beginning and 106.2MB in the end (delta: 16.4MB). Peak memory consumption was 248.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 3392.60ms. Allocated memory was 362.8MB in the beginning and 1.9GB in the end (delta: 1.5GB). Free memory was 106.2MB in the beginning and 1.1GB in the end (delta: -999.3MB). Peak memory consumption was 591.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 2424.27ms. Allocated memory was 1.9GB in the beginning and 5.6GB in the end (delta: 3.8GB). Free memory was 1.1GB in the beginning and 4.6GB in the end (delta: -3.5GB). Peak memory consumption was 284.2MB. Max. memory is 16.1GB. * RCFGBuilder took 148681.80ms. Allocated memory was 5.6GB in the beginning and 12.5GB in the end (delta: 6.8GB). Free memory was 4.6GB in the beginning and 9.3GB in the end (delta: -4.7GB). Peak memory consumption was 6.7GB. Max. memory is 16.1GB. * TraceAbstraction took 2392.12ms. Allocated memory was 12.5GB in the beginning and 12.7GB in the end (delta: 220.2MB). Free memory was 9.3GB in the beginning and 9.7GB in the end (delta: -406.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.04ms. Allocated memory is still 12.7GB. Free memory was 9.7GB in the beginning and 9.7GB in the end (delta: 1.0MB). 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: 21]: 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 bitwiseOr at line 583, overapproximation of bitwiseAnd at line 427. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 2); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (2 - 1); [L29] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 1); [L30] const SORT_3 msb_SORT_3 = (SORT_3)1 << (1 - 1); [L32] const SORT_6 mask_SORT_6 = (SORT_6)-1 >> (sizeof(SORT_6) * 8 - 4); [L33] const SORT_6 msb_SORT_6 = (SORT_6)1 << (4 - 1); [L35] const SORT_9 mask_SORT_9 = (SORT_9)-1 >> (sizeof(SORT_9) * 8 - 8); [L36] const SORT_9 msb_SORT_9 = (SORT_9)1 << (8 - 1); [L38] const SORT_11 mask_SORT_11 = (SORT_11)-1 >> (sizeof(SORT_11) * 8 - 32); [L39] const SORT_11 msb_SORT_11 = (SORT_11)1 << (32 - 1); [L41] const SORT_27 mask_SORT_27 = (SORT_27)-1 >> (sizeof(SORT_27) * 8 - 3); [L42] const SORT_27 msb_SORT_27 = (SORT_27)1 << (3 - 1); [L44] const SORT_34 mask_SORT_34 = (SORT_34)-1 >> (sizeof(SORT_34) * 8 - 5); [L45] const SORT_34 msb_SORT_34 = (SORT_34)1 << (5 - 1); [L47] const SORT_46 mask_SORT_46 = (SORT_46)-1 >> (sizeof(SORT_46) * 8 - 6); [L48] const SORT_46 msb_SORT_46 = (SORT_46)1 << (6 - 1); [L50] const SORT_55 mask_SORT_55 = (SORT_55)-1 >> (sizeof(SORT_55) * 8 - 7); [L51] const SORT_55 msb_SORT_55 = (SORT_55)1 << (7 - 1); [L53] const SORT_272 mask_SORT_272 = (SORT_272)-1 >> (sizeof(SORT_272) * 8 - 9); [L54] const SORT_272 msb_SORT_272 = (SORT_272)1 << (9 - 1); [L56] const SORT_274 mask_SORT_274 = (SORT_274)-1 >> (sizeof(SORT_274) * 8 - 10); [L57] const SORT_274 msb_SORT_274 = (SORT_274)1 << (10 - 1); [L59] const SORT_276 mask_SORT_276 = (SORT_276)-1 >> (sizeof(SORT_276) * 8 - 11); [L60] const SORT_276 msb_SORT_276 = (SORT_276)1 << (11 - 1); [L62] const SORT_278 mask_SORT_278 = (SORT_278)-1 >> (sizeof(SORT_278) * 8 - 12); [L63] const SORT_278 msb_SORT_278 = (SORT_278)1 << (12 - 1); [L65] const SORT_613 mask_SORT_613 = (SORT_613)-1 >> (sizeof(SORT_613) * 8 - 14); [L66] const SORT_613 msb_SORT_613 = (SORT_613)1 << (14 - 1); [L68] const SORT_615 mask_SORT_615 = (SORT_615)-1 >> (sizeof(SORT_615) * 8 - 16); [L69] const SORT_615 msb_SORT_615 = (SORT_615)1 << (16 - 1); [L71] const SORT_617 mask_SORT_617 = (SORT_617)-1 >> (sizeof(SORT_617) * 8 - 22); [L72] const SORT_617 msb_SORT_617 = (SORT_617)1 << (22 - 1); [L74] const SORT_619 mask_SORT_619 = (SORT_619)-1 >> (sizeof(SORT_619) * 8 - 24); [L75] const SORT_619 msb_SORT_619 = (SORT_619)1 << (24 - 1); [L77] const SORT_621 mask_SORT_621 = (SORT_621)-1 >> (sizeof(SORT_621) * 8 - 30); [L78] const SORT_621 msb_SORT_621 = (SORT_621)1 << (30 - 1); [L80] const SORT_660 mask_SORT_660 = (SORT_660)-1 >> (sizeof(SORT_660) * 8 - 33); [L81] const SORT_660 msb_SORT_660 = (SORT_660)1 << (33 - 1); [L83] const SORT_817 mask_SORT_817 = (SORT_817)-1 >> (sizeof(SORT_817) * 8 - 13); [L84] const SORT_817 msb_SORT_817 = (SORT_817)1 << (13 - 1); [L86] const SORT_820 mask_SORT_820 = (SORT_820)-1 >> (sizeof(SORT_820) * 8 - 15); [L87] const SORT_820 msb_SORT_820 = (SORT_820)1 << (15 - 1); [L89] const SORT_823 mask_SORT_823 = (SORT_823)-1 >> (sizeof(SORT_823) * 8 - 17); [L90] const SORT_823 msb_SORT_823 = (SORT_823)1 << (17 - 1); [L92] const SORT_825 mask_SORT_825 = (SORT_825)-1 >> (sizeof(SORT_825) * 8 - 18); [L93] const SORT_825 msb_SORT_825 = (SORT_825)1 << (18 - 1); [L95] const SORT_916 mask_SORT_916 = (SORT_916)-1 >> (sizeof(SORT_916) * 8 - 19); [L96] const SORT_916 msb_SORT_916 = (SORT_916)1 << (19 - 1); [L98] const SORT_918 mask_SORT_918 = (SORT_918)-1 >> (sizeof(SORT_918) * 8 - 20); [L99] const SORT_918 msb_SORT_918 = (SORT_918)1 << (20 - 1); [L101] const SORT_920 mask_SORT_920 = (SORT_920)-1 >> (sizeof(SORT_920) * 8 - 21); [L102] const SORT_920 msb_SORT_920 = (SORT_920)1 << (21 - 1); [L104] const SORT_1137 mask_SORT_1137 = (SORT_1137)-1 >> (sizeof(SORT_1137) * 8 - 23); [L105] const SORT_1137 msb_SORT_1137 = (SORT_1137)1 << (23 - 1); [L107] const SORT_1285 mask_SORT_1285 = (SORT_1285)-1 >> (sizeof(SORT_1285) * 8 - 26); [L108] const SORT_1285 msb_SORT_1285 = (SORT_1285)1 << (26 - 1); [L110] const SORT_1327 mask_SORT_1327 = (SORT_1327)-1 >> (sizeof(SORT_1327) * 8 - 25); [L111] const SORT_1327 msb_SORT_1327 = (SORT_1327)1 << (25 - 1); [L113] const SORT_1332 mask_SORT_1332 = (SORT_1332)-1 >> (sizeof(SORT_1332) * 8 - 27); [L114] const SORT_1332 msb_SORT_1332 = (SORT_1332)1 << (27 - 1); [L116] const SORT_1335 mask_SORT_1335 = (SORT_1335)-1 >> (sizeof(SORT_1335) * 8 - 28); [L117] const SORT_1335 msb_SORT_1335 = (SORT_1335)1 << (28 - 1); [L119] const SORT_1338 mask_SORT_1338 = (SORT_1338)-1 >> (sizeof(SORT_1338) * 8 - 29); [L120] const SORT_1338 msb_SORT_1338 = (SORT_1338)1 << (29 - 1); [L122] const SORT_1343 mask_SORT_1343 = (SORT_1343)-1 >> (sizeof(SORT_1343) * 8 - 31); [L123] const SORT_1343 msb_SORT_1343 = (SORT_1343)1 << (31 - 1); [L125] const SORT_3050 mask_SORT_3050 = (SORT_3050)-1 >> (sizeof(SORT_3050) * 8 - 34); [L126] const SORT_3050 msb_SORT_3050 = (SORT_3050)1 << (34 - 1); [L128] const SORT_3 var_102 = 0; [L129] const SORT_34 var_106 = 0; [L130] const SORT_1 var_113 = 0; [L131] const SORT_3 var_131 = 1; [L132] const SORT_1 var_145 = 3; [L133] const SORT_1 var_147 = 2; [L134] const SORT_1 var_149 = 1; [L135] const SORT_27 var_153 = 1; [L136] const SORT_27 var_156 = 3; [L137] const SORT_27 var_159 = 2; [L138] const SORT_27 var_163 = 5; [L139] const SORT_27 var_166 = 7; [L140] const SORT_27 var_169 = 6; [L141] const SORT_27 var_173 = 4; [L142] const SORT_9 var_199 = 0; [L143] const SORT_34 var_220 = 11; [L144] const SORT_34 var_222 = 10; [L145] const SORT_34 var_224 = 2; [L146] const SORT_34 var_226 = 9; [L147] const SORT_34 var_241 = 21; [L148] const SORT_34 var_243 = 20; [L149] const SORT_34 var_245 = 19; [L150] const SORT_34 var_247 = 18; [L151] const SORT_34 var_249 = 17; [L152] const SORT_34 var_251 = 16; [L153] const SORT_34 var_253 = 15; [L154] const SORT_34 var_255 = 14; [L155] const SORT_34 var_257 = 8; [L156] const SORT_34 var_259 = 6; [L157] const SORT_34 var_261 = 3; [L158] const SORT_34 var_263 = 5; [L159] const SORT_34 var_281 = 4; [L160] const SORT_34 var_283 = 1; [L161] const SORT_34 var_293 = 7; [L162] const SORT_34 var_311 = 13; [L163] const SORT_34 var_319 = 12; [L164] const SORT_34 var_340 = 23; [L165] const SORT_34 var_343 = 22; [L166] const SORT_34 var_352 = 25; [L167] const SORT_34 var_355 = 27; [L168] const SORT_34 var_358 = 26; [L169] const SORT_34 var_362 = 29; [L170] const SORT_34 var_365 = 31; [L171] const SORT_34 var_368 = 30; [L172] const SORT_34 var_372 = 28; [L173] const SORT_34 var_378 = 24; [L174] const SORT_46 var_401 = 0; [L175] const SORT_9 var_477 = 3; [L176] const SORT_27 var_519 = 0; [L177] const SORT_11 var_542 = 0; [L178] const SORT_660 var_661 = 0; [L179] const SORT_9 var_830 = 2; [L180] const SORT_9 var_833 = 1; [L181] const SORT_6 var_1277 = 8; [L182] const SORT_1285 var_1286 = 0; [L183] const SORT_9 var_1372 = 255; [L184] const SORT_46 var_1376 = 1; [L185] const SORT_6 var_1492 = 0; [L186] const SORT_6 var_2430 = 1; [L187] const SORT_6 var_2433 = 3; [L188] const SORT_6 var_2436 = 2; [L189] const SORT_6 var_2440 = 5; [L190] const SORT_6 var_2443 = 7; [L191] const SORT_6 var_2446 = 6; [L192] const SORT_6 var_2450 = 4; [L193] const SORT_6 var_2456 = 9; [L194] const SORT_6 var_2459 = 11; [L195] const SORT_6 var_2462 = 10; [L196] const SORT_6 var_2466 = 13; [L197] const SORT_6 var_2469 = 15; [L198] const SORT_6 var_2472 = 14; [L199] const SORT_6 var_2476 = 12; [L200] const SORT_1335 var_2662 = 0; [L201] const SORT_3050 var_3052 = 0; [L202] const SORT_55 var_3067 = 0; [L204] SORT_1 input_2; [L205] SORT_3 input_4; [L206] SORT_3 input_5; [L207] SORT_6 input_7; [L208] SORT_3 input_8; [L209] SORT_9 input_10; [L210] SORT_11 input_12; [L211] SORT_1 input_13; [L212] SORT_9 input_14; [L213] SORT_9 input_15; [L214] SORT_9 input_16; [L215] SORT_1 input_17; [L216] SORT_9 input_18; [L217] SORT_9 input_19; [L218] SORT_9 input_20; [L219] SORT_3 input_21; [L220] SORT_3 input_22; [L221] SORT_3 input_23; [L222] SORT_3 input_24; [L223] SORT_3 input_25; [L224] SORT_1 input_26; [L225] SORT_27 input_28; [L226] SORT_1 input_29; [L227] SORT_3 input_30; [L228] SORT_3 input_31; [L229] SORT_3 input_32; [L230] SORT_3 input_33; [L231] SORT_34 input_35; [L232] SORT_1 input_36; [L233] SORT_9 input_37; [L234] SORT_11 input_38; [L235] SORT_27 input_39; [L236] SORT_9 input_40; [L237] SORT_1 input_41; [L238] SORT_34 input_42; [L239] SORT_3 input_43; [L240] SORT_3 input_44; [L241] SORT_1 input_45; [L242] SORT_46 input_47; [L243] SORT_1 input_48; [L244] SORT_46 input_49; [L245] SORT_1 input_50; [L246] SORT_46 input_51; [L247] SORT_1 input_52; [L248] SORT_46 input_53; [L249] SORT_3 input_54; [L250] SORT_55 input_56; [L251] SORT_3 input_57; [L252] SORT_1 input_58; [L253] SORT_3 input_59; [L254] SORT_9 input_60; [L255] SORT_3 input_61; [L256] SORT_3 input_62; [L257] SORT_3 input_63; [L258] SORT_3 input_64; [L259] SORT_3 input_65; [L260] SORT_3 input_66; [L261] SORT_3 input_67; [L262] SORT_3 input_68; [L263] SORT_55 input_69; [L264] SORT_55 input_70; [L265] SORT_9 input_71; [L266] SORT_9 input_72; [L267] SORT_11 input_73; [L268] SORT_11 input_74; [L269] SORT_46 input_75; [L270] SORT_46 input_76; [L271] SORT_1 input_77; [L272] SORT_1 input_78; [L273] SORT_46 input_79; [L274] SORT_46 input_80; [L275] SORT_1 input_81; [L276] SORT_1 input_82; [L277] SORT_46 input_83; [L278] SORT_46 input_84; [L279] SORT_1 input_85; [L280] SORT_1 input_86; [L281] SORT_46 input_87; [L282] SORT_46 input_88; [L283] SORT_1 input_89; [L284] SORT_1 input_90; [L285] SORT_27 input_91; [L286] SORT_27 input_92; [L287] SORT_9 input_93; [L288] SORT_9 input_94; [L289] SORT_1 input_95; [L290] SORT_9 input_96; [L291] SORT_3 input_97; [L292] SORT_34 input_98; [L293] SORT_34 input_99; [L294] SORT_1 input_100; [L295] SORT_1 input_101; [L297] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L297] SORT_3 state_103 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L298] EXPR __VERIFIER_nondet_uchar() & mask_SORT_34 [L298] SORT_34 state_107 = __VERIFIER_nondet_uchar() & mask_SORT_34; [L299] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L299] SORT_3 state_109 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L300] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L300] SORT_1 state_114 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L301] EXPR __VERIFIER_nondet_uchar() & mask_SORT_34 [L301] SORT_34 state_121 = __VERIFIER_nondet_uchar() & mask_SORT_34; [L302] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L302] SORT_3 state_135 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L303] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L303] SORT_1 state_138 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L304] EXPR __VERIFIER_nondet_uchar() & mask_SORT_9 [L304] SORT_9 state_200 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L305] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L305] SORT_1 state_425 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L306] EXPR __VERIFIER_nondet_uchar() & mask_SORT_9 [L306] SORT_9 state_507 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L307] EXPR __VERIFIER_nondet_uchar() & mask_SORT_27 [L307] SORT_27 state_520 = __VERIFIER_nondet_uchar() & mask_SORT_27; [L308] EXPR __VERIFIER_nondet_uint() & mask_SORT_11 [L308] SORT_11 state_543 = __VERIFIER_nondet_uint() & mask_SORT_11; [L309] EXPR __VERIFIER_nondet_uchar() & mask_SORT_46 [L309] SORT_46 state_588 = __VERIFIER_nondet_uchar() & mask_SORT_46; [L310] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L310] SORT_1 state_591 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L311] EXPR __VERIFIER_nondet_uchar() & mask_SORT_46 [L311] SORT_46 state_594 = __VERIFIER_nondet_uchar() & mask_SORT_46; [L312] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L312] SORT_1 state_597 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L313] EXPR __VERIFIER_nondet_uchar() & mask_SORT_46 [L313] SORT_46 state_600 = __VERIFIER_nondet_uchar() & mask_SORT_46; [L314] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L314] SORT_1 state_603 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L315] EXPR __VERIFIER_nondet_uchar() & mask_SORT_46 [L315] SORT_46 state_606 = __VERIFIER_nondet_uchar() & mask_SORT_46; [L316] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L316] SORT_1 state_609 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L317] EXPR __VERIFIER_nondet_uchar() & mask_SORT_9 [L317] SORT_9 state_639 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L318] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L318] SORT_3 state_657 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L319] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L319] SORT_3 state_3064 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L320] EXPR __VERIFIER_nondet_uchar() & mask_SORT_55 [L320] SORT_55 state_3068 = __VERIFIER_nondet_uchar() & mask_SORT_55; [L321] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L321] SORT_3 state_3078 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L322] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L322] SORT_3 state_3081 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L323] EXPR __VERIFIER_nondet_uchar() & mask_SORT_9 [L323] SORT_9 state_3112 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L324] EXPR __VERIFIER_nondet_uchar() & mask_SORT_27 [L324] SORT_27 state_3129 = __VERIFIER_nondet_uchar() & mask_SORT_27; [L325] EXPR __VERIFIER_nondet_uint() & mask_SORT_11 [L325] SORT_11 state_3151 = __VERIFIER_nondet_uint() & mask_SORT_11; [L326] EXPR __VERIFIER_nondet_uchar() & mask_SORT_46 [L326] SORT_46 state_3172 = __VERIFIER_nondet_uchar() & mask_SORT_46; [L327] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L327] SORT_1 state_3175 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L328] EXPR __VERIFIER_nondet_uchar() & mask_SORT_46 [L328] SORT_46 state_3178 = __VERIFIER_nondet_uchar() & mask_SORT_46; [L329] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L329] SORT_1 state_3181 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L330] EXPR __VERIFIER_nondet_uchar() & mask_SORT_46 [L330] SORT_46 state_3184 = __VERIFIER_nondet_uchar() & mask_SORT_46; [L331] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L331] SORT_1 state_3187 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L332] EXPR __VERIFIER_nondet_uchar() & mask_SORT_46 [L332] SORT_46 state_3190 = __VERIFIER_nondet_uchar() & mask_SORT_46; [L333] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L333] SORT_1 state_3193 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L334] EXPR __VERIFIER_nondet_uchar() & mask_SORT_9 [L334] SORT_9 state_3266 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L335] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L335] SORT_3 state_3290 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L336] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L336] SORT_3 state_3778 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L337] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L337] SORT_3 state_3781 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L338] EXPR __VERIFIER_nondet_uchar() & mask_SORT_55 [L338] SORT_55 state_3784 = __VERIFIER_nondet_uchar() & mask_SORT_55; [L340] SORT_3 init_104_arg_1 = var_102; [L341] state_103 = init_104_arg_1 [L342] SORT_34 init_108_arg_1 = var_106; [L343] state_107 = init_108_arg_1 [L344] SORT_3 init_110_arg_1 = var_102; [L345] state_109 = init_110_arg_1 [L346] SORT_1 init_115_arg_1 = var_113; [L347] state_114 = init_115_arg_1 [L348] SORT_34 init_122_arg_1 = var_106; [L349] state_121 = init_122_arg_1 [L350] SORT_3 init_136_arg_1 = var_102; [L351] state_135 = init_136_arg_1 [L352] SORT_1 init_139_arg_1 = var_113; [L353] state_138 = init_139_arg_1 [L354] SORT_9 init_201_arg_1 = var_199; [L355] state_200 = init_201_arg_1 [L356] SORT_1 init_426_arg_1 = var_113; [L357] state_425 = init_426_arg_1 [L358] SORT_9 init_508_arg_1 = var_199; [L359] state_507 = init_508_arg_1 [L360] SORT_27 init_521_arg_1 = var_519; [L361] state_520 = init_521_arg_1 [L362] SORT_11 init_544_arg_1 = var_542; [L363] state_543 = init_544_arg_1 [L364] SORT_46 init_589_arg_1 = var_401; [L365] state_588 = init_589_arg_1 [L366] SORT_1 init_592_arg_1 = var_113; [L367] state_591 = init_592_arg_1 [L368] SORT_46 init_595_arg_1 = var_401; [L369] state_594 = init_595_arg_1 [L370] SORT_1 init_598_arg_1 = var_113; [L371] state_597 = init_598_arg_1 [L372] SORT_46 init_601_arg_1 = var_401; [L373] state_600 = init_601_arg_1 [L374] SORT_1 init_604_arg_1 = var_113; [L375] state_603 = init_604_arg_1 [L376] SORT_46 init_607_arg_1 = var_401; [L377] state_606 = init_607_arg_1 [L378] SORT_1 init_610_arg_1 = var_113; [L379] state_609 = init_610_arg_1 [L380] SORT_9 init_640_arg_1 = var_199; [L381] state_639 = init_640_arg_1 [L382] SORT_3 init_658_arg_1 = var_102; [L383] state_657 = init_658_arg_1 [L384] SORT_3 init_3065_arg_1 = var_102; [L385] state_3064 = init_3065_arg_1 [L386] SORT_55 init_3069_arg_1 = var_3067; [L387] state_3068 = init_3069_arg_1 [L388] SORT_3 init_3079_arg_1 = var_102; [L389] state_3078 = init_3079_arg_1 [L390] SORT_3 init_3082_arg_1 = var_102; [L391] state_3081 = init_3082_arg_1 [L392] SORT_9 init_3113_arg_1 = var_199; [L393] state_3112 = init_3113_arg_1 [L394] SORT_27 init_3130_arg_1 = var_519; [L395] state_3129 = init_3130_arg_1 [L396] SORT_11 init_3152_arg_1 = var_542; [L397] state_3151 = init_3152_arg_1 [L398] SORT_46 init_3173_arg_1 = var_401; [L399] state_3172 = init_3173_arg_1 [L400] SORT_1 init_3176_arg_1 = var_113; [L401] state_3175 = init_3176_arg_1 [L402] SORT_46 init_3179_arg_1 = var_401; [L403] state_3178 = init_3179_arg_1 [L404] SORT_1 init_3182_arg_1 = var_113; [L405] state_3181 = init_3182_arg_1 [L406] SORT_46 init_3185_arg_1 = var_401; [L407] state_3184 = init_3185_arg_1 [L408] SORT_1 init_3188_arg_1 = var_113; [L409] state_3187 = init_3188_arg_1 [L410] SORT_46 init_3191_arg_1 = var_401; [L411] state_3190 = init_3191_arg_1 [L412] SORT_1 init_3194_arg_1 = var_113; [L413] state_3193 = init_3194_arg_1 [L414] SORT_9 init_3267_arg_1 = var_199; [L415] state_3266 = init_3267_arg_1 [L416] SORT_3 init_3291_arg_1 = var_102; [L417] state_3290 = init_3291_arg_1 [L418] SORT_3 init_3779_arg_1 = var_102; [L419] state_3778 = init_3779_arg_1 [L420] SORT_3 init_3782_arg_1 = var_102; [L421] state_3781 = init_3782_arg_1 [L422] SORT_55 init_3785_arg_1 = var_3067; [L423] state_3784 = init_3785_arg_1 VAL [init_104_arg_1=0, init_108_arg_1=0, init_110_arg_1=0, init_115_arg_1=0, init_122_arg_1=0, init_136_arg_1=0, init_139_arg_1=0, init_201_arg_1=0, init_3065_arg_1=0, init_3069_arg_1=0, init_3079_arg_1=0, init_3082_arg_1=0, init_3113_arg_1=0, init_3130_arg_1=0, init_3152_arg_1=0, init_3173_arg_1=0, init_3176_arg_1=0, init_3179_arg_1=0, init_3182_arg_1=0, init_3185_arg_1=0, init_3188_arg_1=0, init_3191_arg_1=0, init_3194_arg_1=0, init_3267_arg_1=0, init_3291_arg_1=0, init_3779_arg_1=0, init_3782_arg_1=0, init_3785_arg_1=0, init_426_arg_1=0, init_508_arg_1=0, init_521_arg_1=0, init_544_arg_1=0, init_589_arg_1=0, init_592_arg_1=0, init_595_arg_1=0, init_598_arg_1=0, init_601_arg_1=0, init_604_arg_1=0, init_607_arg_1=0, init_610_arg_1=0, init_640_arg_1=0, init_658_arg_1=0, mask_SORT_1137=8388607, mask_SORT_11=4294967295, mask_SORT_1285=67108863, mask_SORT_1327=33554431, mask_SORT_1332=134217727, mask_SORT_1335=268435455, mask_SORT_1338=536870911, mask_SORT_1343=2147483647, mask_SORT_1=3, mask_SORT_272=511, mask_SORT_274=1023, mask_SORT_276=2047, mask_SORT_278=4095, mask_SORT_27=7, mask_SORT_3050=17179869183, mask_SORT_34=31, mask_SORT_3=1, mask_SORT_46=63, mask_SORT_55=127, mask_SORT_613=16383, mask_SORT_615=65535, mask_SORT_617=4194303, mask_SORT_619=16777215, mask_SORT_621=1073741823, mask_SORT_660=8589934591, mask_SORT_6=15, mask_SORT_817=8191, mask_SORT_820=32767, mask_SORT_823=131071, mask_SORT_825=262143, mask_SORT_916=524287, mask_SORT_918=1048575, mask_SORT_920=2097151, mask_SORT_9=255, msb_SORT_1137=4194304, msb_SORT_11=2147483648, msb_SORT_1285=33554432, msb_SORT_1327=16777216, msb_SORT_1332=67108864, msb_SORT_1335=134217728, msb_SORT_1338=268435456, msb_SORT_1343=1073741824, msb_SORT_1=2, msb_SORT_272=256, msb_SORT_274=512, msb_SORT_276=1024, msb_SORT_278=2048, msb_SORT_27=4, msb_SORT_3050=8589934592, msb_SORT_34=16, msb_SORT_3=1, msb_SORT_46=32, msb_SORT_55=64, msb_SORT_613=8192, msb_SORT_615=32768, msb_SORT_617=2097152, msb_SORT_619=8388608, msb_SORT_621=536870912, msb_SORT_660=4294967296, msb_SORT_6=8, msb_SORT_817=4096, msb_SORT_820=16384, msb_SORT_823=65536, msb_SORT_825=131072, msb_SORT_916=262144, msb_SORT_918=524288, msb_SORT_920=1048576, msb_SORT_9=128, state_103=0, state_107=0, state_109=0, state_114=0, state_121=0, state_135=0, state_138=0, state_200=0, state_3064=0, state_3068=0, state_3078=0, state_3081=0, state_3112=0, state_3129=0, state_3151=0, state_3172=0, state_3175=0, state_3178=0, state_3181=0, state_3184=0, state_3187=0, state_3190=0, state_3193=0, state_3266=0, state_3290=0, state_3778=0, state_3781=0, state_3784=0, state_425=0, state_507=0, state_520=0, state_543=0, state_588=0, state_591=0, state_594=0, state_597=0, state_600=0, state_603=0, state_606=0, state_609=0, state_639=0, state_657=0, var_102=0, var_106=0, var_113=0, var_1277=8, var_1286=0, var_131=1, var_1372=255, var_1376=1, var_145=3, var_147=2, var_1492=0, var_149=1, var_153=1, var_156=3, var_159=2, var_163=5, var_166=7, var_169=6, var_173=4, var_199=0, var_220=11, var_222=10, var_224=2, var_226=9, var_241=21, var_2430=1, var_2433=3, var_2436=2, var_243=20, var_2440=5, var_2443=7, var_2446=6, var_2450=4, var_2456=9, var_2459=11, var_245=19, var_2462=10, var_2466=13, var_2469=15, var_2472=14, var_2476=12, var_247=18, var_249=17, var_251=16, var_253=15, var_255=14, var_257=8, var_259=6, var_261=3, var_263=5, var_2662=0, var_281=4, var_283=1, var_293=7, var_3052=0, var_3067=0, var_311=13, var_319=12, var_340=23, var_343=22, var_352=25, var_355=27, var_358=26, var_362=29, var_365=31, var_368=30, var_372=28, var_378=24, var_401=0, var_477=3, var_519=0, var_542=0, var_661=0, var_830=2, var_833=1] [L426] input_2 = __VERIFIER_nondet_uchar() [L427] EXPR input_2 & mask_SORT_1 [L427] input_2 = input_2 & mask_SORT_1 [L428] input_4 = __VERIFIER_nondet_uchar() [L429] input_5 = __VERIFIER_nondet_uchar() [L430] EXPR input_5 & mask_SORT_3 [L430] input_5 = input_5 & mask_SORT_3 [L431] input_7 = __VERIFIER_nondet_uchar() [L432] EXPR input_7 & mask_SORT_6 [L432] input_7 = input_7 & mask_SORT_6 [L433] input_8 = __VERIFIER_nondet_uchar() [L434] EXPR input_8 & mask_SORT_3 [L434] input_8 = input_8 & mask_SORT_3 [L435] input_10 = __VERIFIER_nondet_uchar() [L436] input_12 = __VERIFIER_nondet_uint() [L437] input_13 = __VERIFIER_nondet_uchar() [L438] EXPR input_13 & mask_SORT_1 [L438] input_13 = input_13 & mask_SORT_1 [L439] input_14 = __VERIFIER_nondet_uchar() [L440] input_15 = __VERIFIER_nondet_uchar() [L441] input_16 = __VERIFIER_nondet_uchar() [L442] input_17 = __VERIFIER_nondet_uchar() [L443] EXPR input_17 & mask_SORT_1 [L443] input_17 = input_17 & mask_SORT_1 [L444] input_18 = __VERIFIER_nondet_uchar() [L445] input_19 = __VERIFIER_nondet_uchar() [L446] input_20 = __VERIFIER_nondet_uchar() [L447] input_21 = __VERIFIER_nondet_uchar() [L448] EXPR input_21 & mask_SORT_3 [L448] input_21 = input_21 & mask_SORT_3 [L449] input_22 = __VERIFIER_nondet_uchar() [L450] EXPR input_22 & mask_SORT_3 [L450] input_22 = input_22 & mask_SORT_3 [L451] input_23 = __VERIFIER_nondet_uchar() [L452] input_24 = __VERIFIER_nondet_uchar() [L453] EXPR input_24 & mask_SORT_3 [L453] input_24 = input_24 & mask_SORT_3 [L454] input_25 = __VERIFIER_nondet_uchar() [L455] EXPR input_25 & mask_SORT_3 [L455] input_25 = input_25 & mask_SORT_3 [L456] input_26 = __VERIFIER_nondet_uchar() [L457] EXPR input_26 & mask_SORT_1 [L457] input_26 = input_26 & mask_SORT_1 [L458] input_28 = __VERIFIER_nondet_uchar() [L459] EXPR input_28 & mask_SORT_27 [L459] input_28 = input_28 & mask_SORT_27 [L460] input_29 = __VERIFIER_nondet_uchar() [L461] EXPR input_29 & mask_SORT_1 [L461] input_29 = input_29 & mask_SORT_1 [L462] input_30 = __VERIFIER_nondet_uchar() [L463] EXPR input_30 & mask_SORT_3 [L463] input_30 = input_30 & mask_SORT_3 [L464] input_31 = __VERIFIER_nondet_uchar() [L465] input_32 = __VERIFIER_nondet_uchar() [L466] input_33 = __VERIFIER_nondet_uchar() [L467] EXPR input_33 & mask_SORT_3 [L467] input_33 = input_33 & mask_SORT_3 [L468] input_35 = __VERIFIER_nondet_uchar() [L469] EXPR input_35 & mask_SORT_34 [L469] input_35 = input_35 & mask_SORT_34 [L470] input_36 = __VERIFIER_nondet_uchar() [L471] input_37 = __VERIFIER_nondet_uchar() [L472] input_38 = __VERIFIER_nondet_uint() [L473] input_39 = __VERIFIER_nondet_uchar() [L474] input_40 = __VERIFIER_nondet_uchar() [L475] input_41 = __VERIFIER_nondet_uchar() [L476] input_42 = __VERIFIER_nondet_uchar() [L477] input_43 = __VERIFIER_nondet_uchar() [L478] input_44 = __VERIFIER_nondet_uchar() [L479] input_45 = __VERIFIER_nondet_uchar() [L480] input_47 = __VERIFIER_nondet_uchar() [L481] input_48 = __VERIFIER_nondet_uchar() [L482] input_49 = __VERIFIER_nondet_uchar() [L483] input_50 = __VERIFIER_nondet_uchar() [L484] input_51 = __VERIFIER_nondet_uchar() [L485] input_52 = __VERIFIER_nondet_uchar() [L486] input_53 = __VERIFIER_nondet_uchar() [L487] input_54 = __VERIFIER_nondet_uchar() [L488] input_56 = __VERIFIER_nondet_uchar() [L489] input_57 = __VERIFIER_nondet_uchar() [L490] input_58 = __VERIFIER_nondet_uchar() [L491] input_59 = __VERIFIER_nondet_uchar() [L492] input_60 = __VERIFIER_nondet_uchar() [L493] input_61 = __VERIFIER_nondet_uchar() [L494] input_62 = __VERIFIER_nondet_uchar() [L495] input_63 = __VERIFIER_nondet_uchar() [L496] input_64 = __VERIFIER_nondet_uchar() [L497] input_65 = __VERIFIER_nondet_uchar() [L498] input_66 = __VERIFIER_nondet_uchar() [L499] input_67 = __VERIFIER_nondet_uchar() [L500] input_68 = __VERIFIER_nondet_uchar() [L501] input_69 = __VERIFIER_nondet_uchar() [L502] input_70 = __VERIFIER_nondet_uchar() [L503] input_71 = __VERIFIER_nondet_uchar() [L504] input_72 = __VERIFIER_nondet_uchar() [L505] input_73 = __VERIFIER_nondet_uint() [L506] input_74 = __VERIFIER_nondet_uint() [L507] input_75 = __VERIFIER_nondet_uchar() [L508] input_76 = __VERIFIER_nondet_uchar() [L509] input_77 = __VERIFIER_nondet_uchar() [L510] input_78 = __VERIFIER_nondet_uchar() [L511] input_79 = __VERIFIER_nondet_uchar() [L512] input_80 = __VERIFIER_nondet_uchar() [L513] input_81 = __VERIFIER_nondet_uchar() [L514] input_82 = __VERIFIER_nondet_uchar() [L515] input_83 = __VERIFIER_nondet_uchar() [L516] input_84 = __VERIFIER_nondet_uchar() [L517] input_85 = __VERIFIER_nondet_uchar() [L518] input_86 = __VERIFIER_nondet_uchar() [L519] input_87 = __VERIFIER_nondet_uchar() [L520] input_88 = __VERIFIER_nondet_uchar() [L521] input_89 = __VERIFIER_nondet_uchar() [L522] input_90 = __VERIFIER_nondet_uchar() [L523] input_91 = __VERIFIER_nondet_uchar() [L524] input_92 = __VERIFIER_nondet_uchar() [L525] input_93 = __VERIFIER_nondet_uchar() [L526] input_94 = __VERIFIER_nondet_uchar() [L527] input_95 = __VERIFIER_nondet_uchar() [L528] input_96 = __VERIFIER_nondet_uchar() [L529] input_97 = __VERIFIER_nondet_uchar() [L530] input_98 = __VERIFIER_nondet_uchar() [L531] input_99 = __VERIFIER_nondet_uchar() [L532] input_100 = __VERIFIER_nondet_uchar() [L533] input_101 = __VERIFIER_nondet_uchar() [L536] SORT_3 var_105_arg_0 = state_103; [L537] SORT_3 var_105 = ~var_105_arg_0; [L538] SORT_3 var_116_arg_0 = state_109; [L539] SORT_1 var_116_arg_1 = state_114; [L540] SORT_1 var_116_arg_2 = input_41; [L541] SORT_1 var_116 = var_116_arg_0 ? var_116_arg_1 : var_116_arg_2; [L542] SORT_1 var_119_arg_0 = var_116; [L543] SORT_3 var_119 = var_119_arg_0 >> 0; [L544] EXPR var_119 & mask_SORT_3 [L544] var_119 = var_119 & mask_SORT_3 [L545] SORT_1 var_117_arg_0 = var_116; [L546] SORT_3 var_117 = var_117_arg_0 >> 1; [L547] EXPR var_117 & mask_SORT_3 [L547] var_117 = var_117 & mask_SORT_3 [L548] SORT_3 var_111_arg_0 = state_109; [L549] SORT_34 var_111_arg_1 = state_107; [L550] SORT_34 var_111_arg_2 = input_42; [L551] SORT_34 var_111 = var_111_arg_0 ? var_111_arg_1 : var_111_arg_2; [L552] SORT_34 var_112_arg_0 = var_111; [L553] SORT_3 var_112 = var_112_arg_0 >> 2; [L554] SORT_3 var_118_arg_0 = var_117; [L555] SORT_3 var_118_arg_1 = var_112; [L556] SORT_3 var_118_arg_2 = var_102; [L557] SORT_3 var_118 = var_118_arg_0 ? var_118_arg_1 : var_118_arg_2; [L558] SORT_3 var_120_arg_0 = var_119; [L559] SORT_3 var_120_arg_1 = var_102; [L560] SORT_3 var_120_arg_2 = var_118; [L561] SORT_3 var_120 = var_120_arg_0 ? var_120_arg_1 : var_120_arg_2; [L562] EXPR var_120 & mask_SORT_3 [L562] var_120 = var_120 & mask_SORT_3 [L563] SORT_3 var_123_arg_0 = state_109; [L564] SORT_34 var_123_arg_1 = state_121; [L565] SORT_34 var_123_arg_2 = input_42; [L566] SORT_34 var_123 = var_123_arg_0 ? var_123_arg_1 : var_123_arg_2; [L567] SORT_34 var_124_arg_0 = var_123; [L568] SORT_3 var_124 = var_124_arg_0 >> 2; [L569] SORT_3 var_125_arg_0 = var_117; [L570] SORT_3 var_125_arg_1 = var_124; [L571] SORT_3 var_125_arg_2 = var_102; [L572] SORT_3 var_125 = var_125_arg_0 ? var_125_arg_1 : var_125_arg_2; [L573] SORT_3 var_126_arg_0 = var_119; [L574] SORT_3 var_126_arg_1 = var_102; [L575] SORT_3 var_126_arg_2 = var_125; [L576] SORT_3 var_126 = var_126_arg_0 ? var_126_arg_1 : var_126_arg_2; [L577] EXPR var_126 & mask_SORT_3 [L577] var_126 = var_126 & mask_SORT_3 [L578] SORT_3 var_127_arg_0 = var_120; [L579] SORT_3 var_127_arg_1 = var_126; [L580] SORT_3 var_127 = var_127_arg_0 == var_127_arg_1; [L581] SORT_3 var_128_arg_0 = var_105; [L582] SORT_3 var_128_arg_1 = var_127; [L583] EXPR var_128_arg_0 | var_128_arg_1 [L583] SORT_3 var_128 = var_128_arg_0 | var_128_arg_1; [L584] SORT_3 var_132_arg_0 = var_128; [L585] SORT_3 var_132 = ~var_132_arg_0; [L586] SORT_3 var_133_arg_0 = var_131; [L587] SORT_3 var_133_arg_1 = var_132; [L588] EXPR var_133_arg_0 & var_133_arg_1 [L588] SORT_3 var_133 = var_133_arg_0 & var_133_arg_1; [L589] EXPR var_133 & mask_SORT_3 [L589] var_133 = var_133 & mask_SORT_3 [L590] SORT_3 bad_134_arg_0 = var_133; [L591] CALL __VERIFIER_assert(!(bad_134_arg_0)) [L21] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L21] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.3s, OverallIterations: 1, TraceHistogramMax: 1, 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=7occurred 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, 0.6s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-12-02 18:23:09,772 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f72d28d-9bf6-4ace-a07a-6bd2f86f798b/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f72d28d-9bf6-4ace-a07a-6bd2f86f798b/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f72d28d-9bf6-4ace-a07a-6bd2f86f798b/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f72d28d-9bf6-4ace-a07a-6bd2f86f798b/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f72d28d-9bf6-4ace-a07a-6bd2f86f798b/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal29.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f72d28d-9bf6-4ace-a07a-6bd2f86f798b/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f72d28d-9bf6-4ace-a07a-6bd2f86f798b/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ca3bb2f7c660d0ed949b0e7db28315a981891dfb011c2a841c60a9a7f334ca81 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 18:23:12,235 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 18:23:12,319 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f72d28d-9bf6-4ace-a07a-6bd2f86f798b/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2023-12-02 18:23:12,325 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 18:23:12,326 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 18:23:12,354 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 18:23:12,355 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 18:23:12,356 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 18:23:12,357 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 18:23:12,357 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 18:23:12,358 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 18:23:12,358 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 18:23:12,359 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 18:23:12,359 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 18:23:12,360 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 18:23:12,360 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 18:23:12,361 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 18:23:12,362 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 18:23:12,362 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 18:23:12,363 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 18:23:12,363 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 18:23:12,364 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 18:23:12,364 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 18:23:12,365 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 18:23:12,365 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 18:23:12,366 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 18:23:12,366 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 18:23:12,367 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 18:23:12,367 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 18:23:12,367 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 18:23:12,368 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 18:23:12,368 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:23:12,369 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 18:23:12,369 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 18:23:12,369 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 18:23:12,369 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 18:23:12,370 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 18:23:12,370 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 18:23:12,370 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 18:23:12,370 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 18:23:12,371 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 18:23:12,371 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_8f72d28d-9bf6-4ace-a07a-6bd2f86f798b/bin/utaipan-verify-nQ1chXbOIh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f72d28d-9bf6-4ace-a07a-6bd2f86f798b/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca3bb2f7c660d0ed949b0e7db28315a981891dfb011c2a841c60a9a7f334ca81 [2023-12-02 18:23:12,658 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 18:23:12,678 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 18:23:12,681 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 18:23:12,682 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 18:23:12,682 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 18:23:12,684 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f72d28d-9bf6-4ace-a07a-6bd2f86f798b/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal29.c [2023-12-02 18:23:15,435 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 18:23:15,988 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 18:23:15,989 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f72d28d-9bf6-4ace-a07a-6bd2f86f798b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal29.c [2023-12-02 18:23:16,059 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f72d28d-9bf6-4ace-a07a-6bd2f86f798b/bin/utaipan-verify-nQ1chXbOIh/data/8b3d864f7/f02c410587054c2696ea2f2a94d899fa/FLAG86d897aea [2023-12-02 18:23:16,073 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f72d28d-9bf6-4ace-a07a-6bd2f86f798b/bin/utaipan-verify-nQ1chXbOIh/data/8b3d864f7/f02c410587054c2696ea2f2a94d899fa [2023-12-02 18:23:16,075 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 18:23:16,077 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 18:23:16,078 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 18:23:16,078 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 18:23:16,083 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 18:23:16,084 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:23:16" (1/1) ... [2023-12-02 18:23:16,085 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60b48677 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:23:16, skipping insertion in model container [2023-12-02 18:23:16,085 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:23:16" (1/1) ... [2023-12-02 18:23:16,267 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 18:23:16,606 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_8f72d28d-9bf6-4ace-a07a-6bd2f86f798b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal29.c[1245,1258] [2023-12-02 18:23:17,584 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:23:17,596 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 18:23:17,608 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_8f72d28d-9bf6-4ace-a07a-6bd2f86f798b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal29.c[1245,1258] [2023-12-02 18:23:18,429 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:23:18,443 INFO L206 MainTranslator]: Completed translation [2023-12-02 18:23:18,444 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:23:18 WrapperNode [2023-12-02 18:23:18,444 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 18:23:18,445 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 18:23:18,445 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 18:23:18,445 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 18:23:18,453 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:23:18" (1/1) ... [2023-12-02 18:23:18,578 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:23:18" (1/1) ... [2023-12-02 18:23:19,059 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 13249 [2023-12-02 18:23:19,059 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 18:23:19,060 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 18:23:19,060 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 18:23:19,061 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 18:23:19,070 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:23:18" (1/1) ... [2023-12-02 18:23:19,070 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:23:18" (1/1) ... [2023-12-02 18:23:19,159 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:23:18" (1/1) ... [2023-12-02 18:23:19,159 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:23:18" (1/1) ... [2023-12-02 18:23:19,397 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:23:18" (1/1) ... [2023-12-02 18:23:19,418 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:23:18" (1/1) ... [2023-12-02 18:23:19,472 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:23:18" (1/1) ... [2023-12-02 18:23:19,503 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:23:18" (1/1) ... [2023-12-02 18:23:19,638 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 18:23:19,639 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 18:23:19,639 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 18:23:19,640 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 18:23:19,640 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:23:18" (1/1) ... [2023-12-02 18:23:19,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:23:19,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f72d28d-9bf6-4ace-a07a-6bd2f86f798b/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:23:19,664 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f72d28d-9bf6-4ace-a07a-6bd2f86f798b/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 18:23:19,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f72d28d-9bf6-4ace-a07a-6bd2f86f798b/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 18:23:19,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 18:23:19,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 18:23:19,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 18:23:19,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 18:23:21,195 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 18:23:21,197 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 18:24:40,189 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 18:24:40,536 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 18:24:40,537 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 18:24:40,545 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:24:40 BoogieIcfgContainer [2023-12-02 18:24:40,545 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 18:24:40,548 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 18:24:40,548 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 18:24:40,551 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 18:24:40,551 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:23:16" (1/3) ... [2023-12-02 18:24:40,552 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@728eabca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:24:40, skipping insertion in model container [2023-12-02 18:24:40,552 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:23:18" (2/3) ... [2023-12-02 18:24:40,553 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@728eabca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:24:40, skipping insertion in model container [2023-12-02 18:24:40,553 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:24:40" (3/3) ... [2023-12-02 18:24:40,554 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal29.c [2023-12-02 18:24:40,573 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 18:24:40,573 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 18:24:40,619 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 18:24:40,626 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;@407a011a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 18:24:40,626 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 18:24:40,630 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:24:40,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-02 18:24:40,636 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:24:40,637 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-12-02 18:24:40,637 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:24:40,642 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:24:40,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2023-12-02 18:24:40,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:24:40,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [630796098] [2023-12-02 18:24:40,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:24:40,659 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 18:24:40,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f72d28d-9bf6-4ace-a07a-6bd2f86f798b/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:24:40,682 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f72d28d-9bf6-4ace-a07a-6bd2f86f798b/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 18:24:40,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f72d28d-9bf6-4ace-a07a-6bd2f86f798b/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-02 18:24:42,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:24:42,387 INFO L262 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-02 18:24:42,417 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:24:42,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 18:24:42,577 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:24:42,578 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:24:42,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [630796098] [2023-12-02 18:24:42,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [630796098] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:24:42,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:24:42,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 18:24:42,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049649468] [2023-12-02 18:24:42,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:24:42,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 18:24:42,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:24:42,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 18:24:42,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 18:24:42,610 INFO L87 Difference]: Start difference. First operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:24:45,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.71s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 18:24:47,480 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 18:24:49,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 18:24:52,288 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.65s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 18:24:54,315 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 18:24:54,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:24:54,316 INFO L93 Difference]: Finished difference Result 16 states and 24 transitions. [2023-12-02 18:24:54,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 18:24:54,396 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-12-02 18:24:54,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:24:54,401 INFO L225 Difference]: With dead ends: 16 [2023-12-02 18:24:54,401 INFO L226 Difference]: Without dead ends: 9 [2023-12-02 18:24:54,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 18:24:54,406 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 3 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2023-12-02 18:24:54,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 7 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 5 Unknown, 0 Unchecked, 11.6s Time] [2023-12-02 18:24:54,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-12-02 18:24:54,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2023-12-02 18:24:54,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:24:54,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2023-12-02 18:24:54,428 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2023-12-02 18:24:54,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:24:54,428 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2023-12-02 18:24:54,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:24:54,428 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2023-12-02 18:24:54,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 18:24:54,429 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:24:54,429 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2023-12-02 18:24:54,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f72d28d-9bf6-4ace-a07a-6bd2f86f798b/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-02 18:24:54,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f72d28d-9bf6-4ace-a07a-6bd2f86f798b/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 18:24:54,630 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:24:54,630 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:24:54,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1393329571, now seen corresponding path program 1 times [2023-12-02 18:24:54,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:24:54,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1488963858] [2023-12-02 18:24:54,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:24:54,640 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 18:24:54,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f72d28d-9bf6-4ace-a07a-6bd2f86f798b/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:24:54,641 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f72d28d-9bf6-4ace-a07a-6bd2f86f798b/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 18:24:54,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f72d28d-9bf6-4ace-a07a-6bd2f86f798b/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-02 18:26:40,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:26:40,500 INFO L262 TraceCheckSpWp]: Trace formula consists of 11168 conjuncts, 52 conjunts are in the unsatisfiable core [2023-12-02 18:26:40,553 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:26:41,011 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 18:26:41,011 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 18:26:44,959 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 18:26:44,959 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:26:44,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1488963858] [2023-12-02 18:26:44,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1488963858] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 18:26:44,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [231732861] [2023-12-02 18:26:44,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:26:44,960 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 18:26:44,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f72d28d-9bf6-4ace-a07a-6bd2f86f798b/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 18:26:44,962 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f72d28d-9bf6-4ace-a07a-6bd2f86f798b/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 18:26:44,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f72d28d-9bf6-4ace-a07a-6bd2f86f798b/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-02 18:27:17,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:27:18,024 INFO L262 TraceCheckSpWp]: Trace formula consists of 11168 conjuncts, 52 conjunts are in the unsatisfiable core [2023-12-02 18:27:18,073 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:27:18,317 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 18:27:18,317 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 18:27:20,527 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 18:27:20,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [231732861] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 18:27:20,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1569858437] [2023-12-02 18:27:20,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:27:20,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 18:27:20,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f72d28d-9bf6-4ace-a07a-6bd2f86f798b/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:27:20,529 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f72d28d-9bf6-4ace-a07a-6bd2f86f798b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 18:27:20,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f72d28d-9bf6-4ace-a07a-6bd2f86f798b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 18:27:24,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:27:24,251 INFO L262 TraceCheckSpWp]: Trace formula consists of 11168 conjuncts, 59 conjunts are in the unsatisfiable core [2023-12-02 18:27:24,292 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:27:24,694 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 18:27:24,694 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 18:27:27,606 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 18:27:27,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1569858437] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 18:27:27,607 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-12-02 18:27:27,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 4, 5, 5] total 10 [2023-12-02 18:27:27,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060475651] [2023-12-02 18:27:27,607 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-12-02 18:27:27,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-02 18:27:27,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:27:27,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-02 18:27:27,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-12-02 18:27:27,609 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 10 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:27:30,404 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.62s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 18:27:32,428 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 18:27:34,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 18:27:36,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 18:27:38,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 18:27:40,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 18:27:42,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 18:27:44,561 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 18:27:47,286 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.58s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 18:27:49,306 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 18:27:51,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 18:27:53,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 18:27:55,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 18:27:57,399 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 18:27:59,420 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 18:28:01,447 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 18:28:03,471 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 18:28:05,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 18:28:08,279 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.67s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 18:28:10,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 18:28:12,329 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 18:28:14,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 18:28:16,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 18:28:18,404 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 18:28:20,431 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 18:28:22,455 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 18:28:24,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 18:28:24,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:28:24,474 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2023-12-02 18:28:24,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 18:28:24,557 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 10 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-12-02 18:28:24,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:28:24,557 INFO L225 Difference]: With dead ends: 14 [2023-12-02 18:28:24,557 INFO L226 Difference]: Without dead ends: 12 [2023-12-02 18:28:24,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2023-12-02 18:28:24,559 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 12 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 4 mSolverCounterUnsat, 27 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 56.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 27 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 56.5s IncrementalHoareTripleChecker+Time [2023-12-02 18:28:24,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 12 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 16 Invalid, 27 Unknown, 0 Unchecked, 56.5s Time] [2023-12-02 18:28:24,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2023-12-02 18:28:24,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2023-12-02 18:28:24,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:28:24,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2023-12-02 18:28:24,561 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 7 [2023-12-02 18:28:24,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:28:24,561 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2023-12-02 18:28:24,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 10 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:28:24,562 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2023-12-02 18:28:24,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 18:28:24,562 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:28:24,562 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1] [2023-12-02 18:28:24,626 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f72d28d-9bf6-4ace-a07a-6bd2f86f798b/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-02 18:28:24,799 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f72d28d-9bf6-4ace-a07a-6bd2f86f798b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 18:28:25,015 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f72d28d-9bf6-4ace-a07a-6bd2f86f798b/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-12-02 18:28:25,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f72d28d-9bf6-4ace-a07a-6bd2f86f798b/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f72d28d-9bf6-4ace-a07a-6bd2f86f798b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f72d28d-9bf6-4ace-a07a-6bd2f86f798b/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt [2023-12-02 18:28:25,164 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:28:25,164 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:28:25,164 INFO L85 PathProgramCache]: Analyzing trace with hash -2112524529, now seen corresponding path program 2 times [2023-12-02 18:28:25,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:28:25,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1739568473] [2023-12-02 18:28:25,182 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-02 18:28:25,182 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 18:28:25,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f72d28d-9bf6-4ace-a07a-6bd2f86f798b/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:28:25,183 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f72d28d-9bf6-4ace-a07a-6bd2f86f798b/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 18:28:25,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f72d28d-9bf6-4ace-a07a-6bd2f86f798b/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process