./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.szymanski.4.prop1-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_363ad2a2-9d32-48f9-9354-d5b1dae63687/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_363ad2a2-9d32-48f9-9354-d5b1dae63687/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_363ad2a2-9d32-48f9-9354-d5b1dae63687/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_363ad2a2-9d32-48f9-9354-d5b1dae63687/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.szymanski.4.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_363ad2a2-9d32-48f9-9354-d5b1dae63687/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_363ad2a2-9d32-48f9-9354-d5b1dae63687/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 7bef3bcec21a8f1e146be703aaddad5f71d2ce80879443cdc0bae02f08a25144 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 16:54:28,847 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 16:54:28,912 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_363ad2a2-9d32-48f9-9354-d5b1dae63687/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-12-02 16:54:28,916 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 16:54:28,917 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 16:54:28,948 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 16:54:28,948 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 16:54:28,949 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 16:54:28,949 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 16:54:28,950 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 16:54:28,950 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 16:54:28,951 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 16:54:28,952 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 16:54:28,952 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 16:54:28,953 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 16:54:28,953 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 16:54:28,954 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 16:54:28,954 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 16:54:28,955 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 16:54:28,955 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 16:54:28,955 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 16:54:28,956 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 16:54:28,957 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 16:54:28,957 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 16:54:28,958 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 16:54:28,958 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 16:54:28,967 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 16:54:28,968 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 16:54:28,968 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 16:54:28,968 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 16:54:28,969 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 16:54:28,969 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 16:54:28,969 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 16:54:28,970 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 16:54:28,970 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:54:28,970 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 16:54:28,970 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 16:54:28,970 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 16:54:28,971 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 16:54:28,971 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 16:54:28,971 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 16:54:28,971 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 16:54:28,971 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 16:54:28,972 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 16:54:28,972 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_363ad2a2-9d32-48f9-9354-d5b1dae63687/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_363ad2a2-9d32-48f9-9354-d5b1dae63687/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7bef3bcec21a8f1e146be703aaddad5f71d2ce80879443cdc0bae02f08a25144 [2023-12-02 16:54:29,178 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 16:54:29,212 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 16:54:29,214 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 16:54:29,215 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 16:54:29,220 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 16:54:29,221 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_363ad2a2-9d32-48f9-9354-d5b1dae63687/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.szymanski.4.prop1-func-interl.c [2023-12-02 16:54:31,941 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 16:54:32,325 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 16:54:32,325 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_363ad2a2-9d32-48f9-9354-d5b1dae63687/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.szymanski.4.prop1-func-interl.c [2023-12-02 16:54:32,345 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_363ad2a2-9d32-48f9-9354-d5b1dae63687/bin/utaipan-verify-nQ1chXbOIh/data/cc4ea932f/e802e6c50627476aa81b7384aff268fd/FLAG7c9b653ce [2023-12-02 16:54:32,357 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_363ad2a2-9d32-48f9-9354-d5b1dae63687/bin/utaipan-verify-nQ1chXbOIh/data/cc4ea932f/e802e6c50627476aa81b7384aff268fd [2023-12-02 16:54:32,359 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 16:54:32,360 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 16:54:32,362 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 16:54:32,362 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 16:54:32,366 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 16:54:32,367 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:54:32" (1/1) ... [2023-12-02 16:54:32,368 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72aa8226 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:54:32, skipping insertion in model container [2023-12-02 16:54:32,368 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:54:32" (1/1) ... [2023-12-02 16:54:32,461 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 16:54:32,648 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_363ad2a2-9d32-48f9-9354-d5b1dae63687/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.szymanski.4.prop1-func-interl.c[1176,1189] [2023-12-02 16:54:33,235 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:54:33,317 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 16:54:33,328 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_363ad2a2-9d32-48f9-9354-d5b1dae63687/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.szymanski.4.prop1-func-interl.c[1176,1189] [2023-12-02 16:54:33,712 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:54:33,728 INFO L206 MainTranslator]: Completed translation [2023-12-02 16:54:33,729 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:54:33 WrapperNode [2023-12-02 16:54:33,730 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 16:54:33,731 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 16:54:33,731 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 16:54:33,732 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 16:54:33,740 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:54:33" (1/1) ... [2023-12-02 16:54:33,897 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:54:33" (1/1) ... [2023-12-02 16:54:35,419 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 19789 [2023-12-02 16:54:35,419 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 16:54:35,420 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 16:54:35,420 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 16:54:35,421 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 16:54:35,432 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:54:33" (1/1) ... [2023-12-02 16:54:35,432 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:54:33" (1/1) ... [2023-12-02 16:54:35,811 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:54:33" (1/1) ... [2023-12-02 16:54:35,812 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:54:33" (1/1) ... [2023-12-02 16:54:36,198 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:54:33" (1/1) ... [2023-12-02 16:54:36,270 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:54:33" (1/1) ... [2023-12-02 16:54:36,428 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:54:33" (1/1) ... [2023-12-02 16:54:36,497 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:54:33" (1/1) ... [2023-12-02 16:54:36,749 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 16:54:36,751 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 16:54:36,751 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 16:54:36,751 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 16:54:36,752 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:54:33" (1/1) ... [2023-12-02 16:54:36,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:54:36,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_363ad2a2-9d32-48f9-9354-d5b1dae63687/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:54:36,781 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_363ad2a2-9d32-48f9-9354-d5b1dae63687/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 16:54:36,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_363ad2a2-9d32-48f9-9354-d5b1dae63687/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 16:54:36,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 16:54:36,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 16:54:36,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 16:54:36,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 16:54:37,685 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 16:54:37,686 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 16:54:47,588 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 16:55:16,842 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 16:55:16,842 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 16:55:16,843 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:55:16 BoogieIcfgContainer [2023-12-02 16:55:16,843 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 16:55:16,845 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 16:55:16,845 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 16:55:16,847 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 16:55:16,847 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 04:54:32" (1/3) ... [2023-12-02 16:55:16,848 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@156024a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:55:16, skipping insertion in model container [2023-12-02 16:55:16,848 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:54:33" (2/3) ... [2023-12-02 16:55:16,848 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@156024a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:55:16, skipping insertion in model container [2023-12-02 16:55:16,848 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:55:16" (3/3) ... [2023-12-02 16:55:16,849 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.szymanski.4.prop1-func-interl.c [2023-12-02 16:55:16,864 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 16:55:16,865 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 16:55:16,900 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 16:55:16,905 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;@460edc70, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 16:55:16,905 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 16:55:16,908 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 16:55:16,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-02 16:55:16,912 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:55:16,912 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-12-02 16:55:16,913 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:55:16,916 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:55:16,917 INFO L85 PathProgramCache]: Analyzing trace with hash 768986989, now seen corresponding path program 1 times [2023-12-02 16:55:16,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:55:16,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980866915] [2023-12-02 16:55:16,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:55:16,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:55:18,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 16:55:18,599 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 16:55:19,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 16:55:19,303 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 16:55:19,305 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 16:55:19,306 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 16:55:19,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 16:55:19,313 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 16:55:19,317 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 16:55:19,364 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-12-02 16:55:19,387 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 04:55:19 BoogieIcfgContainer [2023-12-02 16:55:19,387 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 16:55:19,388 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 16:55:19,388 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 16:55:19,388 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 16:55:19,388 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:55:16" (3/4) ... [2023-12-02 16:55:19,390 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 16:55:19,392 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 16:55:19,393 INFO L158 Benchmark]: Toolchain (without parser) took 47032.21ms. Allocated memory was 167.8MB in the beginning and 6.1GB in the end (delta: 5.9GB). Free memory was 128.5MB in the beginning and 4.5GB in the end (delta: -4.4GB). Peak memory consumption was 1.5GB. Max. memory is 16.1GB. [2023-12-02 16:55:19,393 INFO L158 Benchmark]: CDTParser took 1.29ms. Allocated memory is still 125.8MB. Free memory is still 99.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 16:55:19,394 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1368.50ms. Allocated memory was 167.8MB in the beginning and 285.2MB in the end (delta: 117.4MB). Free memory was 127.9MB in the beginning and 173.6MB in the end (delta: -45.8MB). Peak memory consumption was 149.9MB. Max. memory is 16.1GB. [2023-12-02 16:55:19,395 INFO L158 Benchmark]: Boogie Procedure Inliner took 1688.54ms. Allocated memory was 285.2MB in the beginning and 526.4MB in the end (delta: 241.2MB). Free memory was 173.6MB in the beginning and 169.1MB in the end (delta: 4.5MB). Peak memory consumption was 297.0MB. Max. memory is 16.1GB. [2023-12-02 16:55:19,396 INFO L158 Benchmark]: Boogie Preprocessor took 1329.29ms. Allocated memory was 526.4MB in the beginning and 1.2GB in the end (delta: 673.2MB). Free memory was 169.1MB in the beginning and 736.4MB in the end (delta: -567.3MB). Peak memory consumption was 114.3MB. Max. memory is 16.1GB. [2023-12-02 16:55:19,396 INFO L158 Benchmark]: RCFGBuilder took 40092.93ms. Allocated memory was 1.2GB in the beginning and 6.1GB in the end (delta: 4.9GB). Free memory was 736.4MB in the beginning and 4.9GB in the end (delta: -4.1GB). Peak memory consumption was 2.7GB. Max. memory is 16.1GB. [2023-12-02 16:55:19,397 INFO L158 Benchmark]: TraceAbstraction took 2542.08ms. Allocated memory is still 6.1GB. Free memory was 4.9GB in the beginning and 4.5GB in the end (delta: 368.1MB). Peak memory consumption was 369.1MB. Max. memory is 16.1GB. [2023-12-02 16:55:19,397 INFO L158 Benchmark]: Witness Printer took 4.26ms. Allocated memory is still 6.1GB. Free memory is still 4.5GB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 16:55:19,401 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.29ms. Allocated memory is still 125.8MB. Free memory is still 99.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1368.50ms. Allocated memory was 167.8MB in the beginning and 285.2MB in the end (delta: 117.4MB). Free memory was 127.9MB in the beginning and 173.6MB in the end (delta: -45.8MB). Peak memory consumption was 149.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 1688.54ms. Allocated memory was 285.2MB in the beginning and 526.4MB in the end (delta: 241.2MB). Free memory was 173.6MB in the beginning and 169.1MB in the end (delta: 4.5MB). Peak memory consumption was 297.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 1329.29ms. Allocated memory was 526.4MB in the beginning and 1.2GB in the end (delta: 673.2MB). Free memory was 169.1MB in the beginning and 736.4MB in the end (delta: -567.3MB). Peak memory consumption was 114.3MB. Max. memory is 16.1GB. * RCFGBuilder took 40092.93ms. Allocated memory was 1.2GB in the beginning and 6.1GB in the end (delta: 4.9GB). Free memory was 736.4MB in the beginning and 4.9GB in the end (delta: -4.1GB). Peak memory consumption was 2.7GB. Max. memory is 16.1GB. * TraceAbstraction took 2542.08ms. Allocated memory is still 6.1GB. Free memory was 4.9GB in the beginning and 4.5GB in the end (delta: 368.1MB). Peak memory consumption was 369.1MB. Max. memory is 16.1GB. * Witness Printer took 4.26ms. Allocated memory is still 6.1GB. Free memory is still 4.5GB. 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 bitwiseAnd at line 360. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L29] const SORT_2 mask_SORT_2 = (SORT_2)-1 >> (sizeof(SORT_2) * 8 - 8); [L30] const SORT_2 msb_SORT_2 = (SORT_2)1 << (8 - 1); [L32] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 24); [L33] const SORT_3 msb_SORT_3 = (SORT_3)1 << (24 - 1); [L35] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 32); [L36] const SORT_4 msb_SORT_4 = (SORT_4)1 << (32 - 1); [L38] const SORT_2 var_5 = 0; [L39] const SORT_1 var_38 = 0; [L40] const SORT_4 var_145 = 1; [L41] const SORT_4 var_146 = 0; [L42] const SORT_2 var_158 = 0; [L43] const SORT_2 var_160 = 1; [L44] const SORT_3 var_236 = 0; [L45] const SORT_4 var_565 = 4; [L46] const SORT_2 var_569 = 2; [L47] const SORT_2 var_579 = 4; [L48] const SORT_4 var_861 = 2; [L49] const SORT_2 var_957 = 3; [L50] const SORT_4 var_966 = 3; [L52] SORT_1 input_157; [L53] SORT_1 input_159; [L54] SORT_1 input_164; [L55] SORT_1 input_165; [L56] SORT_1 input_169; [L57] SORT_1 input_170; [L58] SORT_1 input_174; [L59] SORT_1 input_175; [L60] SORT_1 input_179; [L61] SORT_1 input_180; [L62] SORT_1 input_185; [L63] SORT_1 input_186; [L64] SORT_1 input_191; [L65] SORT_1 input_192; [L66] SORT_1 input_197; [L67] SORT_1 input_198; [L68] SORT_1 input_203; [L69] SORT_1 input_204; [L70] SORT_1 input_205; [L71] SORT_1 input_211; [L72] SORT_1 input_212; [L73] SORT_1 input_213; [L74] SORT_1 input_219; [L75] SORT_1 input_220; [L76] SORT_1 input_221; [L77] SORT_1 input_227; [L78] SORT_1 input_228; [L79] SORT_1 input_229; [L80] SORT_1 input_235; [L81] SORT_1 input_240; [L82] SORT_1 input_241; [L83] SORT_1 input_242; [L84] SORT_1 input_243; [L85] SORT_1 input_244; [L86] SORT_1 input_245; [L87] SORT_1 input_246; [L88] SORT_1 input_247; [L89] SORT_1 input_261; [L90] SORT_1 input_265; [L91] SORT_1 input_266; [L92] SORT_1 input_267; [L93] SORT_1 input_268; [L94] SORT_1 input_269; [L95] SORT_1 input_270; [L96] SORT_1 input_271; [L97] SORT_1 input_272; [L98] SORT_1 input_286; [L99] SORT_1 input_290; [L100] SORT_1 input_291; [L101] SORT_1 input_292; [L102] SORT_1 input_293; [L103] SORT_1 input_294; [L104] SORT_1 input_295; [L105] SORT_1 input_296; [L106] SORT_1 input_297; [L107] SORT_1 input_311; [L108] SORT_1 input_315; [L109] SORT_1 input_316; [L110] SORT_1 input_317; [L111] SORT_1 input_318; [L112] SORT_1 input_319; [L113] SORT_1 input_320; [L114] SORT_1 input_321; [L115] SORT_1 input_322; [L116] SORT_1 input_340; [L117] SORT_1 input_350; [L118] SORT_1 input_354; [L119] SORT_1 input_358; [L120] SORT_1 input_367; [L121] SORT_1 input_373; [L122] SORT_1 input_378; [L123] SORT_1 input_387; [L124] SORT_1 input_397; [L125] SORT_1 input_407; [L126] SORT_1 input_411; [L127] SORT_1 input_415; [L128] SORT_1 input_424; [L129] SORT_1 input_430; [L130] SORT_1 input_435; [L131] SORT_1 input_444; [L132] SORT_1 input_454; [L133] SORT_1 input_464; [L134] SORT_1 input_468; [L135] SORT_1 input_472; [L136] SORT_1 input_481; [L137] SORT_1 input_487; [L138] SORT_1 input_492; [L139] SORT_1 input_501; [L140] SORT_1 input_511; [L141] SORT_1 input_521; [L142] SORT_1 input_525; [L143] SORT_1 input_529; [L144] SORT_1 input_538; [L145] SORT_1 input_544; [L146] SORT_1 input_549; [L147] SORT_1 input_558; [L149] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L149] SORT_2 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L150] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L150] SORT_2 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L151] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L151] SORT_2 state_10 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L152] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L152] SORT_2 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L153] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L153] SORT_2 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L154] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L154] SORT_2 state_16 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L155] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L155] SORT_2 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L156] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L156] SORT_2 state_20 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L157] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L157] SORT_2 state_22 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L158] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L158] SORT_2 state_24 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L159] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L159] SORT_2 state_26 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L160] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L160] SORT_2 state_28 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L161] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L161] SORT_2 state_30 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L162] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L162] SORT_2 state_32 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L163] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L163] SORT_2 state_34 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L164] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L164] SORT_2 state_36 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L165] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L165] SORT_1 state_39 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L166] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L166] SORT_1 state_41 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L167] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L167] SORT_1 state_43 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L168] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L168] SORT_1 state_45 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L169] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L169] SORT_1 state_47 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L170] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L170] SORT_1 state_49 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L171] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L171] SORT_1 state_51 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L172] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L172] SORT_1 state_53 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L173] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L173] SORT_1 state_55 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L174] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L174] SORT_1 state_57 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L175] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L175] SORT_1 state_59 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L176] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L176] SORT_1 state_61 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L177] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L177] SORT_1 state_63 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L178] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L178] SORT_1 state_65 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L179] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L179] SORT_1 state_67 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L180] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L180] SORT_1 state_69 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L181] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L181] SORT_1 state_71 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L182] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L182] SORT_1 state_73 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L183] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L183] SORT_1 state_75 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L184] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L184] SORT_1 state_77 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L185] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L185] SORT_1 state_79 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L186] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L186] SORT_1 state_81 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L187] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L187] SORT_1 state_83 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L188] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L188] SORT_1 state_85 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L189] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L189] SORT_1 state_87 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L190] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L190] SORT_1 state_89 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L191] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L191] SORT_1 state_91 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L192] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L192] SORT_1 state_93 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L193] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L193] SORT_1 state_95 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L194] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L194] SORT_1 state_97 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L195] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L195] SORT_1 state_99 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L196] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L196] SORT_1 state_101 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L197] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L197] SORT_1 state_103 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L198] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L198] SORT_1 state_105 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L199] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L199] SORT_1 state_107 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L200] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L200] SORT_1 state_109 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L201] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L201] SORT_1 state_111 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L202] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L202] SORT_1 state_113 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L203] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L203] SORT_1 state_115 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L204] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L204] SORT_1 state_117 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L205] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L205] SORT_1 state_119 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L206] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L206] SORT_1 state_121 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L207] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L207] SORT_1 state_123 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L208] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L208] SORT_1 state_125 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L209] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L209] SORT_1 state_127 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L210] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L210] SORT_1 state_129 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L211] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L211] SORT_1 state_131 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L212] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L212] SORT_1 state_133 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L213] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L213] SORT_1 state_135 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L214] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L214] SORT_1 state_137 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L215] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L215] SORT_1 state_139 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L216] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L216] SORT_1 state_141 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L217] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L217] SORT_1 state_143 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L219] SORT_2 init_7_arg_1 = var_5; [L220] state_6 = init_7_arg_1 [L221] SORT_2 init_9_arg_1 = var_5; [L222] state_8 = init_9_arg_1 [L223] SORT_2 init_11_arg_1 = var_5; [L224] state_10 = init_11_arg_1 [L225] SORT_2 init_13_arg_1 = var_5; [L226] state_12 = init_13_arg_1 [L227] SORT_2 init_15_arg_1 = var_5; [L228] state_14 = init_15_arg_1 [L229] SORT_2 init_17_arg_1 = var_5; [L230] state_16 = init_17_arg_1 [L231] SORT_2 init_19_arg_1 = var_5; [L232] state_18 = init_19_arg_1 [L233] SORT_2 init_21_arg_1 = var_5; [L234] state_20 = init_21_arg_1 [L235] SORT_2 init_23_arg_1 = var_5; [L236] state_22 = init_23_arg_1 [L237] SORT_2 init_25_arg_1 = var_5; [L238] state_24 = init_25_arg_1 [L239] SORT_2 init_27_arg_1 = var_5; [L240] state_26 = init_27_arg_1 [L241] SORT_2 init_29_arg_1 = var_5; [L242] state_28 = init_29_arg_1 [L243] SORT_2 init_31_arg_1 = var_5; [L244] state_30 = init_31_arg_1 [L245] SORT_2 init_33_arg_1 = var_5; [L246] state_32 = init_33_arg_1 [L247] SORT_2 init_35_arg_1 = var_5; [L248] state_34 = init_35_arg_1 [L249] SORT_2 init_37_arg_1 = var_5; [L250] state_36 = init_37_arg_1 [L251] SORT_1 init_40_arg_1 = var_38; [L252] state_39 = init_40_arg_1 [L253] SORT_1 init_42_arg_1 = var_38; [L254] state_41 = init_42_arg_1 [L255] SORT_1 init_44_arg_1 = var_38; [L256] state_43 = init_44_arg_1 [L257] SORT_1 init_46_arg_1 = var_38; [L258] state_45 = init_46_arg_1 [L259] SORT_1 init_48_arg_1 = var_38; [L260] state_47 = init_48_arg_1 [L261] SORT_1 init_50_arg_1 = var_38; [L262] state_49 = init_50_arg_1 [L263] SORT_1 init_52_arg_1 = var_38; [L264] state_51 = init_52_arg_1 [L265] SORT_1 init_54_arg_1 = var_38; [L266] state_53 = init_54_arg_1 [L267] SORT_1 init_56_arg_1 = var_38; [L268] state_55 = init_56_arg_1 [L269] SORT_1 init_58_arg_1 = var_38; [L270] state_57 = init_58_arg_1 [L271] SORT_1 init_60_arg_1 = var_38; [L272] state_59 = init_60_arg_1 [L273] SORT_1 init_62_arg_1 = var_38; [L274] state_61 = init_62_arg_1 [L275] SORT_1 init_64_arg_1 = var_38; [L276] state_63 = init_64_arg_1 [L277] SORT_1 init_66_arg_1 = var_38; [L278] state_65 = init_66_arg_1 [L279] SORT_1 init_68_arg_1 = var_38; [L280] state_67 = init_68_arg_1 [L281] SORT_1 init_70_arg_1 = var_38; [L282] state_69 = init_70_arg_1 [L283] SORT_1 init_72_arg_1 = var_38; [L284] state_71 = init_72_arg_1 [L285] SORT_1 init_74_arg_1 = var_38; [L286] state_73 = init_74_arg_1 [L287] SORT_1 init_76_arg_1 = var_38; [L288] state_75 = init_76_arg_1 [L289] SORT_1 init_78_arg_1 = var_38; [L290] state_77 = init_78_arg_1 [L291] SORT_1 init_80_arg_1 = var_38; [L292] state_79 = init_80_arg_1 [L293] SORT_1 init_82_arg_1 = var_38; [L294] state_81 = init_82_arg_1 [L295] SORT_1 init_84_arg_1 = var_38; [L296] state_83 = init_84_arg_1 [L297] SORT_1 init_86_arg_1 = var_38; [L298] state_85 = init_86_arg_1 [L299] SORT_1 init_88_arg_1 = var_38; [L300] state_87 = init_88_arg_1 [L301] SORT_1 init_90_arg_1 = var_38; [L302] state_89 = init_90_arg_1 [L303] SORT_1 init_92_arg_1 = var_38; [L304] state_91 = init_92_arg_1 [L305] SORT_1 init_94_arg_1 = var_38; [L306] state_93 = init_94_arg_1 [L307] SORT_1 init_96_arg_1 = var_38; [L308] state_95 = init_96_arg_1 [L309] SORT_1 init_98_arg_1 = var_38; [L310] state_97 = init_98_arg_1 [L311] SORT_1 init_100_arg_1 = var_38; [L312] state_99 = init_100_arg_1 [L313] SORT_1 init_102_arg_1 = var_38; [L314] state_101 = init_102_arg_1 [L315] SORT_1 init_104_arg_1 = var_38; [L316] state_103 = init_104_arg_1 [L317] SORT_1 init_106_arg_1 = var_38; [L318] state_105 = init_106_arg_1 [L319] SORT_1 init_108_arg_1 = var_38; [L320] state_107 = init_108_arg_1 [L321] SORT_1 init_110_arg_1 = var_38; [L322] state_109 = init_110_arg_1 [L323] SORT_1 init_112_arg_1 = var_38; [L324] state_111 = init_112_arg_1 [L325] SORT_1 init_114_arg_1 = var_38; [L326] state_113 = init_114_arg_1 [L327] SORT_1 init_116_arg_1 = var_38; [L328] state_115 = init_116_arg_1 [L329] SORT_1 init_118_arg_1 = var_38; [L330] state_117 = init_118_arg_1 [L331] SORT_1 init_120_arg_1 = var_38; [L332] state_119 = init_120_arg_1 [L333] SORT_1 init_122_arg_1 = var_38; [L334] state_121 = init_122_arg_1 [L335] SORT_1 init_124_arg_1 = var_38; [L336] state_123 = init_124_arg_1 [L337] SORT_1 init_126_arg_1 = var_38; [L338] state_125 = init_126_arg_1 [L339] SORT_1 init_128_arg_1 = var_38; [L340] state_127 = init_128_arg_1 [L341] SORT_1 init_130_arg_1 = var_38; [L342] state_129 = init_130_arg_1 [L343] SORT_1 init_132_arg_1 = var_38; [L344] state_131 = init_132_arg_1 [L345] SORT_1 init_134_arg_1 = var_38; [L346] state_133 = init_134_arg_1 [L347] SORT_1 init_136_arg_1 = var_38; [L348] state_135 = init_136_arg_1 [L349] SORT_1 init_138_arg_1 = var_38; [L350] state_137 = init_138_arg_1 [L351] SORT_1 init_140_arg_1 = var_38; [L352] state_139 = init_140_arg_1 [L353] SORT_1 init_142_arg_1 = var_38; [L354] state_141 = init_142_arg_1 [L355] SORT_1 init_144_arg_1 = var_38; [L356] state_143 = init_144_arg_1 VAL [init_100_arg_1=0, init_102_arg_1=0, init_104_arg_1=0, init_106_arg_1=0, init_108_arg_1=0, init_110_arg_1=0, init_112_arg_1=0, init_114_arg_1=0, init_116_arg_1=0, init_118_arg_1=0, init_11_arg_1=0, init_120_arg_1=0, init_122_arg_1=0, init_124_arg_1=0, init_126_arg_1=0, init_128_arg_1=0, init_130_arg_1=0, init_132_arg_1=0, init_134_arg_1=0, init_136_arg_1=0, init_138_arg_1=0, init_13_arg_1=0, init_140_arg_1=0, init_142_arg_1=0, init_144_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_21_arg_1=0, init_23_arg_1=0, init_25_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_33_arg_1=0, init_35_arg_1=0, init_37_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_48_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_54_arg_1=0, init_56_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_68_arg_1=0, init_70_arg_1=0, init_72_arg_1=0, init_74_arg_1=0, init_76_arg_1=0, init_78_arg_1=0, init_7_arg_1=0, init_80_arg_1=0, init_82_arg_1=0, init_84_arg_1=0, init_86_arg_1=0, init_88_arg_1=0, init_90_arg_1=0, init_92_arg_1=0, init_94_arg_1=0, init_96_arg_1=0, init_98_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=16777215, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_101=0, state_103=0, state_105=0, state_107=0, state_109=0, state_10=0, state_111=0, state_113=0, state_115=0, state_117=0, state_119=0, state_121=0, state_123=0, state_125=0, state_127=0, state_129=0, state_12=0, state_131=0, state_133=0, state_135=0, state_137=0, state_139=0, state_141=0, state_143=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=0, state_30=0, state_32=0, state_34=0, state_36=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_61=0, state_63=0, state_65=0, state_67=0, state_69=0, state_6=0, state_71=0, state_73=0, state_75=0, state_77=0, state_79=0, state_81=0, state_83=0, state_85=0, state_87=0, state_89=0, state_8=0, state_91=0, state_93=0, state_95=0, state_97=0, state_99=0, var_145=1, var_146=0, var_158=0, var_160=1, var_236=0, var_38=0, var_565=4, var_569=2, var_579=4, var_5=0, var_861=2, var_957=3, var_966=3] [L359] input_157 = __VERIFIER_nondet_uchar() [L360] EXPR input_157 & mask_SORT_1 [L360] input_157 = input_157 & mask_SORT_1 [L361] input_159 = __VERIFIER_nondet_uchar() [L362] EXPR input_159 & mask_SORT_1 [L362] input_159 = input_159 & mask_SORT_1 [L363] input_164 = __VERIFIER_nondet_uchar() [L364] EXPR input_164 & mask_SORT_1 [L364] input_164 = input_164 & mask_SORT_1 [L365] input_165 = __VERIFIER_nondet_uchar() [L366] EXPR input_165 & mask_SORT_1 [L366] input_165 = input_165 & mask_SORT_1 [L367] input_169 = __VERIFIER_nondet_uchar() [L368] EXPR input_169 & mask_SORT_1 [L368] input_169 = input_169 & mask_SORT_1 [L369] input_170 = __VERIFIER_nondet_uchar() [L370] EXPR input_170 & mask_SORT_1 [L370] input_170 = input_170 & mask_SORT_1 [L371] input_174 = __VERIFIER_nondet_uchar() [L372] EXPR input_174 & mask_SORT_1 [L372] input_174 = input_174 & mask_SORT_1 [L373] input_175 = __VERIFIER_nondet_uchar() [L374] EXPR input_175 & mask_SORT_1 [L374] input_175 = input_175 & mask_SORT_1 [L375] input_179 = __VERIFIER_nondet_uchar() [L376] EXPR input_179 & mask_SORT_1 [L376] input_179 = input_179 & mask_SORT_1 [L377] input_180 = __VERIFIER_nondet_uchar() [L378] EXPR input_180 & mask_SORT_1 [L378] input_180 = input_180 & mask_SORT_1 [L379] input_185 = __VERIFIER_nondet_uchar() [L380] EXPR input_185 & mask_SORT_1 [L380] input_185 = input_185 & mask_SORT_1 [L381] input_186 = __VERIFIER_nondet_uchar() [L382] EXPR input_186 & mask_SORT_1 [L382] input_186 = input_186 & mask_SORT_1 [L383] input_191 = __VERIFIER_nondet_uchar() [L384] EXPR input_191 & mask_SORT_1 [L384] input_191 = input_191 & mask_SORT_1 [L385] input_192 = __VERIFIER_nondet_uchar() [L386] EXPR input_192 & mask_SORT_1 [L386] input_192 = input_192 & mask_SORT_1 [L387] input_197 = __VERIFIER_nondet_uchar() [L388] EXPR input_197 & mask_SORT_1 [L388] input_197 = input_197 & mask_SORT_1 [L389] input_198 = __VERIFIER_nondet_uchar() [L390] EXPR input_198 & mask_SORT_1 [L390] input_198 = input_198 & mask_SORT_1 [L391] input_203 = __VERIFIER_nondet_uchar() [L392] EXPR input_203 & mask_SORT_1 [L392] input_203 = input_203 & mask_SORT_1 [L393] input_204 = __VERIFIER_nondet_uchar() [L394] EXPR input_204 & mask_SORT_1 [L394] input_204 = input_204 & mask_SORT_1 [L395] input_205 = __VERIFIER_nondet_uchar() [L396] EXPR input_205 & mask_SORT_1 [L396] input_205 = input_205 & mask_SORT_1 [L397] input_211 = __VERIFIER_nondet_uchar() [L398] EXPR input_211 & mask_SORT_1 [L398] input_211 = input_211 & mask_SORT_1 [L399] input_212 = __VERIFIER_nondet_uchar() [L400] EXPR input_212 & mask_SORT_1 [L400] input_212 = input_212 & mask_SORT_1 [L401] input_213 = __VERIFIER_nondet_uchar() [L402] EXPR input_213 & mask_SORT_1 [L402] input_213 = input_213 & mask_SORT_1 [L403] input_219 = __VERIFIER_nondet_uchar() [L404] EXPR input_219 & mask_SORT_1 [L404] input_219 = input_219 & mask_SORT_1 [L405] input_220 = __VERIFIER_nondet_uchar() [L406] EXPR input_220 & mask_SORT_1 [L406] input_220 = input_220 & mask_SORT_1 [L407] input_221 = __VERIFIER_nondet_uchar() [L408] EXPR input_221 & mask_SORT_1 [L408] input_221 = input_221 & mask_SORT_1 [L409] input_227 = __VERIFIER_nondet_uchar() [L410] EXPR input_227 & mask_SORT_1 [L410] input_227 = input_227 & mask_SORT_1 [L411] input_228 = __VERIFIER_nondet_uchar() [L412] EXPR input_228 & mask_SORT_1 [L412] input_228 = input_228 & mask_SORT_1 [L413] input_229 = __VERIFIER_nondet_uchar() [L414] EXPR input_229 & mask_SORT_1 [L414] input_229 = input_229 & mask_SORT_1 [L415] input_235 = __VERIFIER_nondet_uchar() [L416] EXPR input_235 & mask_SORT_1 [L416] input_235 = input_235 & mask_SORT_1 [L417] input_240 = __VERIFIER_nondet_uchar() [L418] EXPR input_240 & mask_SORT_1 [L418] input_240 = input_240 & mask_SORT_1 [L419] input_241 = __VERIFIER_nondet_uchar() [L420] EXPR input_241 & mask_SORT_1 [L420] input_241 = input_241 & mask_SORT_1 [L421] input_242 = __VERIFIER_nondet_uchar() [L422] EXPR input_242 & mask_SORT_1 [L422] input_242 = input_242 & mask_SORT_1 [L423] input_243 = __VERIFIER_nondet_uchar() [L424] EXPR input_243 & mask_SORT_1 [L424] input_243 = input_243 & mask_SORT_1 [L425] input_244 = __VERIFIER_nondet_uchar() [L426] EXPR input_244 & mask_SORT_1 [L426] input_244 = input_244 & mask_SORT_1 [L427] input_245 = __VERIFIER_nondet_uchar() [L428] EXPR input_245 & mask_SORT_1 [L428] input_245 = input_245 & mask_SORT_1 [L429] input_246 = __VERIFIER_nondet_uchar() [L430] EXPR input_246 & mask_SORT_1 [L430] input_246 = input_246 & mask_SORT_1 [L431] input_247 = __VERIFIER_nondet_uchar() [L432] EXPR input_247 & mask_SORT_1 [L432] input_247 = input_247 & mask_SORT_1 [L433] input_261 = __VERIFIER_nondet_uchar() [L434] EXPR input_261 & mask_SORT_1 [L434] input_261 = input_261 & mask_SORT_1 [L435] input_265 = __VERIFIER_nondet_uchar() [L436] EXPR input_265 & mask_SORT_1 [L436] input_265 = input_265 & mask_SORT_1 [L437] input_266 = __VERIFIER_nondet_uchar() [L438] EXPR input_266 & mask_SORT_1 [L438] input_266 = input_266 & mask_SORT_1 [L439] input_267 = __VERIFIER_nondet_uchar() [L440] EXPR input_267 & mask_SORT_1 [L440] input_267 = input_267 & mask_SORT_1 [L441] input_268 = __VERIFIER_nondet_uchar() [L442] EXPR input_268 & mask_SORT_1 [L442] input_268 = input_268 & mask_SORT_1 [L443] input_269 = __VERIFIER_nondet_uchar() [L444] EXPR input_269 & mask_SORT_1 [L444] input_269 = input_269 & mask_SORT_1 [L445] input_270 = __VERIFIER_nondet_uchar() [L446] EXPR input_270 & mask_SORT_1 [L446] input_270 = input_270 & mask_SORT_1 [L447] input_271 = __VERIFIER_nondet_uchar() [L448] EXPR input_271 & mask_SORT_1 [L448] input_271 = input_271 & mask_SORT_1 [L449] input_272 = __VERIFIER_nondet_uchar() [L450] EXPR input_272 & mask_SORT_1 [L450] input_272 = input_272 & mask_SORT_1 [L451] input_286 = __VERIFIER_nondet_uchar() [L452] EXPR input_286 & mask_SORT_1 [L452] input_286 = input_286 & mask_SORT_1 [L453] input_290 = __VERIFIER_nondet_uchar() [L454] EXPR input_290 & mask_SORT_1 [L454] input_290 = input_290 & mask_SORT_1 [L455] input_291 = __VERIFIER_nondet_uchar() [L456] EXPR input_291 & mask_SORT_1 [L456] input_291 = input_291 & mask_SORT_1 [L457] input_292 = __VERIFIER_nondet_uchar() [L458] EXPR input_292 & mask_SORT_1 [L458] input_292 = input_292 & mask_SORT_1 [L459] input_293 = __VERIFIER_nondet_uchar() [L460] EXPR input_293 & mask_SORT_1 [L460] input_293 = input_293 & mask_SORT_1 [L461] input_294 = __VERIFIER_nondet_uchar() [L462] EXPR input_294 & mask_SORT_1 [L462] input_294 = input_294 & mask_SORT_1 [L463] input_295 = __VERIFIER_nondet_uchar() [L464] EXPR input_295 & mask_SORT_1 [L464] input_295 = input_295 & mask_SORT_1 [L465] input_296 = __VERIFIER_nondet_uchar() [L466] EXPR input_296 & mask_SORT_1 [L466] input_296 = input_296 & mask_SORT_1 [L467] input_297 = __VERIFIER_nondet_uchar() [L468] EXPR input_297 & mask_SORT_1 [L468] input_297 = input_297 & mask_SORT_1 [L469] input_311 = __VERIFIER_nondet_uchar() [L470] EXPR input_311 & mask_SORT_1 [L470] input_311 = input_311 & mask_SORT_1 [L471] input_315 = __VERIFIER_nondet_uchar() [L472] EXPR input_315 & mask_SORT_1 [L472] input_315 = input_315 & mask_SORT_1 [L473] input_316 = __VERIFIER_nondet_uchar() [L474] EXPR input_316 & mask_SORT_1 [L474] input_316 = input_316 & mask_SORT_1 [L475] input_317 = __VERIFIER_nondet_uchar() [L476] EXPR input_317 & mask_SORT_1 [L476] input_317 = input_317 & mask_SORT_1 [L477] input_318 = __VERIFIER_nondet_uchar() [L478] EXPR input_318 & mask_SORT_1 [L478] input_318 = input_318 & mask_SORT_1 [L479] input_319 = __VERIFIER_nondet_uchar() [L480] EXPR input_319 & mask_SORT_1 [L480] input_319 = input_319 & mask_SORT_1 [L481] input_320 = __VERIFIER_nondet_uchar() [L482] EXPR input_320 & mask_SORT_1 [L482] input_320 = input_320 & mask_SORT_1 [L483] input_321 = __VERIFIER_nondet_uchar() [L484] EXPR input_321 & mask_SORT_1 [L484] input_321 = input_321 & mask_SORT_1 [L485] input_322 = __VERIFIER_nondet_uchar() [L486] EXPR input_322 & mask_SORT_1 [L486] input_322 = input_322 & mask_SORT_1 [L487] input_340 = __VERIFIER_nondet_uchar() [L488] input_350 = __VERIFIER_nondet_uchar() [L489] input_354 = __VERIFIER_nondet_uchar() [L490] input_358 = __VERIFIER_nondet_uchar() [L491] input_367 = __VERIFIER_nondet_uchar() [L492] input_373 = __VERIFIER_nondet_uchar() [L493] input_378 = __VERIFIER_nondet_uchar() [L494] input_387 = __VERIFIER_nondet_uchar() [L495] input_397 = __VERIFIER_nondet_uchar() [L496] input_407 = __VERIFIER_nondet_uchar() [L497] input_411 = __VERIFIER_nondet_uchar() [L498] input_415 = __VERIFIER_nondet_uchar() [L499] input_424 = __VERIFIER_nondet_uchar() [L500] input_430 = __VERIFIER_nondet_uchar() [L501] input_435 = __VERIFIER_nondet_uchar() [L502] input_444 = __VERIFIER_nondet_uchar() [L503] input_454 = __VERIFIER_nondet_uchar() [L504] input_464 = __VERIFIER_nondet_uchar() [L505] input_468 = __VERIFIER_nondet_uchar() [L506] input_472 = __VERIFIER_nondet_uchar() [L507] input_481 = __VERIFIER_nondet_uchar() [L508] input_487 = __VERIFIER_nondet_uchar() [L509] input_492 = __VERIFIER_nondet_uchar() [L510] input_501 = __VERIFIER_nondet_uchar() [L511] input_511 = __VERIFIER_nondet_uchar() [L512] input_521 = __VERIFIER_nondet_uchar() [L513] input_525 = __VERIFIER_nondet_uchar() [L514] input_529 = __VERIFIER_nondet_uchar() [L515] input_538 = __VERIFIER_nondet_uchar() [L516] input_544 = __VERIFIER_nondet_uchar() [L517] input_549 = __VERIFIER_nondet_uchar() [L518] input_558 = __VERIFIER_nondet_uchar() [L521] SORT_1 var_147_arg_0 = state_63; [L522] SORT_4 var_147_arg_1 = var_145; [L523] SORT_4 var_147_arg_2 = var_146; [L524] SORT_4 var_147 = var_147_arg_0 ? var_147_arg_1 : var_147_arg_2; [L525] SORT_1 var_148_arg_0 = state_89; [L526] SORT_4 var_148_arg_1 = var_145; [L527] SORT_4 var_148_arg_2 = var_146; [L528] SORT_4 var_148 = var_148_arg_0 ? var_148_arg_1 : var_148_arg_2; [L529] SORT_4 var_149_arg_0 = var_147; [L530] SORT_4 var_149_arg_1 = var_148; [L531] SORT_4 var_149 = var_149_arg_0 + var_149_arg_1; [L532] SORT_1 var_150_arg_0 = state_115; [L533] SORT_4 var_150_arg_1 = var_145; [L534] SORT_4 var_150_arg_2 = var_146; [L535] SORT_4 var_150 = var_150_arg_0 ? var_150_arg_1 : var_150_arg_2; [L536] SORT_4 var_151_arg_0 = var_149; [L537] SORT_4 var_151_arg_1 = var_150; [L538] SORT_4 var_151 = var_151_arg_0 + var_151_arg_1; [L539] SORT_1 var_152_arg_0 = state_141; [L540] SORT_4 var_152_arg_1 = var_145; [L541] SORT_4 var_152_arg_2 = var_146; [L542] SORT_4 var_152 = var_152_arg_0 ? var_152_arg_1 : var_152_arg_2; [L543] SORT_4 var_153_arg_0 = var_151; [L544] SORT_4 var_153_arg_1 = var_152; [L545] SORT_4 var_153 = var_153_arg_0 + var_153_arg_1; [L546] EXPR var_153 & mask_SORT_4 [L546] var_153 = var_153 & mask_SORT_4 [L547] SORT_4 var_154_arg_0 = var_153; [L548] SORT_4 var_154_arg_1 = var_145; [L549] SORT_1 var_154 = var_154_arg_0 <= var_154_arg_1; [L550] SORT_1 var_155_arg_0 = ~state_143; [L551] EXPR var_155_arg_0 & mask_SORT_1 [L551] var_155_arg_0 = var_155_arg_0 & mask_SORT_1 [L552] SORT_1 var_155_arg_1 = ~var_154; [L553] EXPR var_155_arg_1 & mask_SORT_1 [L553] var_155_arg_1 = var_155_arg_1 & mask_SORT_1 [L554] EXPR var_155_arg_0 & var_155_arg_1 [L554] SORT_1 var_155 = var_155_arg_0 & var_155_arg_1; [L555] EXPR var_155 & mask_SORT_1 [L555] var_155 = var_155 & mask_SORT_1 [L556] SORT_1 bad_156_arg_0 = var_155; [L557] CALL __VERIFIER_assert(!(bad_156_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: 2.4s, 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, 1.5s 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 16:55:19,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_363ad2a2-9d32-48f9-9354-d5b1dae63687/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_363ad2a2-9d32-48f9-9354-d5b1dae63687/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_363ad2a2-9d32-48f9-9354-d5b1dae63687/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_363ad2a2-9d32-48f9-9354-d5b1dae63687/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_363ad2a2-9d32-48f9-9354-d5b1dae63687/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.szymanski.4.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_363ad2a2-9d32-48f9-9354-d5b1dae63687/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_363ad2a2-9d32-48f9-9354-d5b1dae63687/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 7bef3bcec21a8f1e146be703aaddad5f71d2ce80879443cdc0bae02f08a25144 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 16:55:21,580 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 16:55:21,656 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_363ad2a2-9d32-48f9-9354-d5b1dae63687/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2023-12-02 16:55:21,661 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 16:55:21,662 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 16:55:21,690 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 16:55:21,691 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 16:55:21,691 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 16:55:21,692 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 16:55:21,692 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 16:55:21,693 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 16:55:21,694 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 16:55:21,694 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 16:55:21,695 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 16:55:21,695 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 16:55:21,696 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 16:55:21,697 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 16:55:21,697 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 16:55:21,698 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 16:55:21,698 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 16:55:21,699 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 16:55:21,700 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 16:55:21,701 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 16:55:21,701 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 16:55:21,702 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 16:55:21,702 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 16:55:21,702 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 16:55:21,703 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 16:55:21,704 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 16:55:21,704 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 16:55:21,705 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 16:55:21,705 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:55:21,705 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 16:55:21,706 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 16:55:21,706 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 16:55:21,706 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 16:55:21,706 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 16:55:21,707 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 16:55:21,707 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 16:55:21,707 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 16:55:21,707 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 16:55:21,708 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_363ad2a2-9d32-48f9-9354-d5b1dae63687/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_363ad2a2-9d32-48f9-9354-d5b1dae63687/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7bef3bcec21a8f1e146be703aaddad5f71d2ce80879443cdc0bae02f08a25144 [2023-12-02 16:55:21,981 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 16:55:22,001 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 16:55:22,003 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 16:55:22,004 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 16:55:22,005 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 16:55:22,006 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_363ad2a2-9d32-48f9-9354-d5b1dae63687/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.szymanski.4.prop1-func-interl.c [2023-12-02 16:55:24,791 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 16:55:25,177 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 16:55:25,177 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_363ad2a2-9d32-48f9-9354-d5b1dae63687/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.szymanski.4.prop1-func-interl.c [2023-12-02 16:55:25,202 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_363ad2a2-9d32-48f9-9354-d5b1dae63687/bin/utaipan-verify-nQ1chXbOIh/data/6bea4218e/203263a4375e45ddb7316d797e50f176/FLAGb5d5e9d0e [2023-12-02 16:55:25,217 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_363ad2a2-9d32-48f9-9354-d5b1dae63687/bin/utaipan-verify-nQ1chXbOIh/data/6bea4218e/203263a4375e45ddb7316d797e50f176 [2023-12-02 16:55:25,220 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 16:55:25,222 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 16:55:25,223 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 16:55:25,223 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 16:55:25,228 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 16:55:25,229 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:55:25" (1/1) ... [2023-12-02 16:55:25,230 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@482420ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:55:25, skipping insertion in model container [2023-12-02 16:55:25,231 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:55:25" (1/1) ... [2023-12-02 16:55:25,332 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 16:55:25,563 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_363ad2a2-9d32-48f9-9354-d5b1dae63687/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.szymanski.4.prop1-func-interl.c[1176,1189] [2023-12-02 16:55:26,028 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:55:26,041 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 16:55:26,053 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_363ad2a2-9d32-48f9-9354-d5b1dae63687/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.szymanski.4.prop1-func-interl.c[1176,1189] [2023-12-02 16:55:26,274 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:55:26,286 INFO L206 MainTranslator]: Completed translation [2023-12-02 16:55:26,287 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:55:26 WrapperNode [2023-12-02 16:55:26,287 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 16:55:26,288 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 16:55:26,288 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 16:55:26,288 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 16:55:26,293 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:55:26" (1/1) ... [2023-12-02 16:55:26,350 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:55:26" (1/1) ... [2023-12-02 16:55:26,528 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 5102 [2023-12-02 16:55:26,529 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 16:55:26,529 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 16:55:26,529 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 16:55:26,530 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 16:55:26,537 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:55:26" (1/1) ... [2023-12-02 16:55:26,538 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:55:26" (1/1) ... [2023-12-02 16:55:26,564 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:55:26" (1/1) ... [2023-12-02 16:55:26,565 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:55:26" (1/1) ... [2023-12-02 16:55:26,686 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:55:26" (1/1) ... [2023-12-02 16:55:26,697 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:55:26" (1/1) ... [2023-12-02 16:55:26,711 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:55:26" (1/1) ... [2023-12-02 16:55:26,723 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:55:26" (1/1) ... [2023-12-02 16:55:26,744 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 16:55:26,745 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 16:55:26,745 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 16:55:26,745 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 16:55:26,746 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:55:26" (1/1) ... [2023-12-02 16:55:26,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:55:26,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_363ad2a2-9d32-48f9-9354-d5b1dae63687/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:55:26,775 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_363ad2a2-9d32-48f9-9354-d5b1dae63687/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 16:55:26,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_363ad2a2-9d32-48f9-9354-d5b1dae63687/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 16:55:26,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 16:55:26,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 16:55:26,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 16:55:26,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 16:55:27,519 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 16:55:27,522 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 16:55:38,566 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 16:55:38,760 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 16:55:38,760 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 16:55:38,760 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:55:38 BoogieIcfgContainer [2023-12-02 16:55:38,761 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 16:55:38,763 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 16:55:38,763 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 16:55:38,766 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 16:55:38,766 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 04:55:25" (1/3) ... [2023-12-02 16:55:38,766 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@305828d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:55:38, skipping insertion in model container [2023-12-02 16:55:38,766 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:55:26" (2/3) ... [2023-12-02 16:55:38,767 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@305828d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:55:38, skipping insertion in model container [2023-12-02 16:55:38,767 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:55:38" (3/3) ... [2023-12-02 16:55:38,768 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.szymanski.4.prop1-func-interl.c [2023-12-02 16:55:38,783 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 16:55:38,783 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 16:55:38,822 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 16:55:38,827 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;@94da692, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 16:55:38,827 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 16:55:38,830 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 16:55:38,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-02 16:55:38,834 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:55:38,835 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-12-02 16:55:38,836 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:55:38,840 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:55:38,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2023-12-02 16:55:38,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:55:38,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1543347641] [2023-12-02 16:55:38,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:55:38,852 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 16:55:38,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_363ad2a2-9d32-48f9-9354-d5b1dae63687/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:55:38,855 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_363ad2a2-9d32-48f9-9354-d5b1dae63687/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 16:55:38,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_363ad2a2-9d32-48f9-9354-d5b1dae63687/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 16:55:39,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:55:39,757 INFO L262 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 40 conjunts are in the unsatisfiable core [2023-12-02 16:55:39,778 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:55:40,211 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 16:55:40,211 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:55:40,212 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:55:40,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1543347641] [2023-12-02 16:55:40,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1543347641] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:55:40,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:55:40,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 16:55:40,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752710105] [2023-12-02 16:55:40,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:55:40,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 16:55:40,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:55:40,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 16:55:40,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 16:55:40,246 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 16:55:40,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:55:40,881 INFO L93 Difference]: Finished difference Result 16 states and 24 transitions. [2023-12-02 16:55:40,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 16:55:40,883 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 16:55:40,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:55:40,889 INFO L225 Difference]: With dead ends: 16 [2023-12-02 16:55:40,889 INFO L226 Difference]: Without dead ends: 9 [2023-12-02 16:55:40,892 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 16:55:40,897 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 3 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-02 16:55:40,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 6 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-02 16:55:40,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-12-02 16:55:40,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2023-12-02 16:55:40,925 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 16:55:40,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2023-12-02 16:55:40,926 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2023-12-02 16:55:40,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:55:40,926 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2023-12-02 16:55:40,927 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 16:55:40,927 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2023-12-02 16:55:40,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 16:55:40,927 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:55:40,927 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2023-12-02 16:55:40,933 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_363ad2a2-9d32-48f9-9354-d5b1dae63687/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 16:55:41,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_363ad2a2-9d32-48f9-9354-d5b1dae63687/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 16:55:41,128 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:55:41,129 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:55:41,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1393329571, now seen corresponding path program 1 times [2023-12-02 16:55:41,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:55:41,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1685462034] [2023-12-02 16:55:41,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:55:41,137 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 16:55:41,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_363ad2a2-9d32-48f9-9354-d5b1dae63687/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:55:41,138 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_363ad2a2-9d32-48f9-9354-d5b1dae63687/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 16:55:41,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_363ad2a2-9d32-48f9-9354-d5b1dae63687/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 16:55:46,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:55:46,901 INFO L262 TraceCheckSpWp]: Trace formula consists of 4317 conjuncts, 260 conjunts are in the unsatisfiable core [2023-12-02 16:55:46,941 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:55:53,928 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 16:55:53,928 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:56:25,149 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 16:56:25,149 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:56:25,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1685462034] [2023-12-02 16:56:25,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1685462034] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 16:56:25,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1260115106] [2023-12-02 16:56:25,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:56:25,150 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 16:56:25,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_363ad2a2-9d32-48f9-9354-d5b1dae63687/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 16:56:25,169 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_363ad2a2-9d32-48f9-9354-d5b1dae63687/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 16:56:25,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_363ad2a2-9d32-48f9-9354-d5b1dae63687/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-02 16:56:28,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:56:28,551 INFO L262 TraceCheckSpWp]: Trace formula consists of 4317 conjuncts, 262 conjunts are in the unsatisfiable core [2023-12-02 16:56:28,602 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:56:38,057 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 16:56:38,058 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:57:57,599 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 16:57:57,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1260115106] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 16:57:57,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1239554135] [2023-12-02 16:57:57,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:57:57,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:57:57,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_363ad2a2-9d32-48f9-9354-d5b1dae63687/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:57:57,601 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_363ad2a2-9d32-48f9-9354-d5b1dae63687/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:57:57,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_363ad2a2-9d32-48f9-9354-d5b1dae63687/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 16:57:59,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:57:59,189 INFO L262 TraceCheckSpWp]: Trace formula consists of 4317 conjuncts, 265 conjunts are in the unsatisfiable core [2023-12-02 16:57:59,236 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:58:04,260 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 16:58:04,260 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:01:30,853 WARN L293 SmtUtils]: Spent 11.61s on a formula simplification that was a NOOP. DAG size: 751 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 17:04:43,747 WARN L293 SmtUtils]: Spent 19.18s on a formula simplification that was a NOOP. DAG size: 755 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 17:04:49,004 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 17:04:49,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1239554135] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:04:49,005 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-12-02 17:04:49,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 4, 5, 5] total 15 [2023-12-02 17:04:49,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066581272] [2023-12-02 17:04:49,006 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-12-02 17:04:49,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-02 17:04:49,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:04:49,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-02 17:04:49,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=158, Unknown=18, NotChecked=0, Total=240 [2023-12-02 17:04:49,008 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 16 states, 16 states have (on average 1.875) internal successors, (30), 15 states have internal predecessors, (30), 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 17:04:59,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:05:03,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.31s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-12-02 17:05:09,847 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.60s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-12-02 17:05:16,840 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.99s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-12-02 17:05:18,774 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-12-02 17:05:22,226 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.22s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-12-02 17:05:28,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.58s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-12-02 17:05:35,392 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.58s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-12-02 17:05:37,239 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-12-02 17:06:03,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.27s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-12-02 17:06:10,390 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.64s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-12-02 17:06:17,305 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.91s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-12-02 17:06:19,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-12-02 17:06:23,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.34s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-12-02 17:06:30,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.70s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-12-02 17:06:38,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 7.69s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-12-02 17:06:40,353 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-12-02 17:06:47,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.36s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:06:47,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:06:47,117 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2023-12-02 17:06:47,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 17:06:47,119 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 1.875) internal successors, (30), 15 states have internal predecessors, (30), 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 17:06:47,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:06:47,120 INFO L225 Difference]: With dead ends: 14 [2023-12-02 17:06:47,120 INFO L226 Difference]: Without dead ends: 12 [2023-12-02 17:06:47,121 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 515.5s TimeCoverageRelationStatistics Valid=102, Invalid=220, Unknown=20, NotChecked=0, Total=342 [2023-12-02 17:06:47,122 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 16 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 85.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 86.2s IncrementalHoareTripleChecker+Time [2023-12-02 17:06:47,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 20 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 86.2s Time] [2023-12-02 17:06:47,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2023-12-02 17:06:47,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2023-12-02 17:06:47,129 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 17:06:47,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2023-12-02 17:06:47,129 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 7 [2023-12-02 17:06:47,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:06:47,129 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2023-12-02 17:06:47,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 1.875) internal successors, (30), 15 states have internal predecessors, (30), 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 17:06:47,130 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2023-12-02 17:06:47,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 17:06:47,130 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:06:47,130 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1] [2023-12-02 17:06:47,146 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_363ad2a2-9d32-48f9-9354-d5b1dae63687/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 17:06:47,353 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_363ad2a2-9d32-48f9-9354-d5b1dae63687/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-12-02 17:06:47,549 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_363ad2a2-9d32-48f9-9354-d5b1dae63687/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 17:06:47,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_363ad2a2-9d32-48f9-9354-d5b1dae63687/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_363ad2a2-9d32-48f9-9354-d5b1dae63687/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_363ad2a2-9d32-48f9-9354-d5b1dae63687/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 17:06:47,732 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:06:47,732 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:06:47,732 INFO L85 PathProgramCache]: Analyzing trace with hash -2112524529, now seen corresponding path program 2 times [2023-12-02 17:06:47,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:06:47,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1763036067] [2023-12-02 17:06:47,739 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-02 17:06:47,740 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 17:06:47,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_363ad2a2-9d32-48f9-9354-d5b1dae63687/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:06:47,740 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_363ad2a2-9d32-48f9-9354-d5b1dae63687/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 17:06:47,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_363ad2a2-9d32-48f9-9354-d5b1dae63687/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 [2023-12-02 17:06:59,278 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-02 17:06:59,278 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 17:06:59,421 INFO L262 TraceCheckSpWp]: Trace formula consists of 8363 conjuncts, 775 conjunts are in the unsatisfiable core [2023-12-02 17:06:59,482 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:07:31,687 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 1 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:07:31,687 INFO L327 TraceCheckSpWp]: Computing backward predicates...