./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal32.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_31e40877-22f6-48aa-969f-c2adf8ffcfb3/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e40877-22f6-48aa-969f-c2adf8ffcfb3/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_31e40877-22f6-48aa-969f-c2adf8ffcfb3/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e40877-22f6-48aa-969f-c2adf8ffcfb3/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal32.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e40877-22f6-48aa-969f-c2adf8ffcfb3/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_31e40877-22f6-48aa-969f-c2adf8ffcfb3/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 d4b828fa93b5d6014948abfbb816d407ef4c58e959e4e8b2a37658f7831f7658 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 13:34:36,749 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 13:34:36,812 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e40877-22f6-48aa-969f-c2adf8ffcfb3/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-12-02 13:34:36,816 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 13:34:36,817 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 13:34:36,838 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 13:34:36,839 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 13:34:36,839 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 13:34:36,840 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 13:34:36,840 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 13:34:36,841 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 13:34:36,841 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 13:34:36,842 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 13:34:36,842 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 13:34:36,843 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 13:34:36,843 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 13:34:36,844 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 13:34:36,844 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 13:34:36,845 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 13:34:36,845 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 13:34:36,846 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 13:34:36,848 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 13:34:36,849 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 13:34:36,850 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 13:34:36,850 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 13:34:36,851 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 13:34:36,851 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 13:34:36,852 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 13:34:36,852 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 13:34:36,852 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 13:34:36,853 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 13:34:36,853 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 13:34:36,854 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 13:34:36,854 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 13:34:36,854 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:34:36,854 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 13:34:36,855 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 13:34:36,855 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 13:34:36,855 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 13:34:36,855 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 13:34:36,855 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 13:34:36,856 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 13:34:36,856 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 13:34:36,856 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 13:34:36,856 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_31e40877-22f6-48aa-969f-c2adf8ffcfb3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e40877-22f6-48aa-969f-c2adf8ffcfb3/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4b828fa93b5d6014948abfbb816d407ef4c58e959e4e8b2a37658f7831f7658 [2023-12-02 13:34:37,053 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 13:34:37,074 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 13:34:37,076 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 13:34:37,077 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 13:34:37,078 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 13:34:37,079 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e40877-22f6-48aa-969f-c2adf8ffcfb3/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal32.c [2023-12-02 13:34:39,785 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 13:34:40,272 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 13:34:40,273 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e40877-22f6-48aa-969f-c2adf8ffcfb3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal32.c [2023-12-02 13:34:40,322 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e40877-22f6-48aa-969f-c2adf8ffcfb3/bin/utaipan-verify-nQ1chXbOIh/data/7bbd344cc/55058ffb61e94fcc8635721cfc66bb15/FLAGa7df56ad8 [2023-12-02 13:34:40,337 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e40877-22f6-48aa-969f-c2adf8ffcfb3/bin/utaipan-verify-nQ1chXbOIh/data/7bbd344cc/55058ffb61e94fcc8635721cfc66bb15 [2023-12-02 13:34:40,340 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 13:34:40,341 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 13:34:40,343 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 13:34:40,343 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 13:34:40,348 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 13:34:40,349 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:34:40" (1/1) ... [2023-12-02 13:34:40,350 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fbc1a3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:34:40, skipping insertion in model container [2023-12-02 13:34:40,350 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:34:40" (1/1) ... [2023-12-02 13:34:40,542 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 13:34:40,789 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_31e40877-22f6-48aa-969f-c2adf8ffcfb3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal32.c[1245,1258] [2023-12-02 13:34:42,006 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:34:42,016 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 13:34:42,029 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_31e40877-22f6-48aa-969f-c2adf8ffcfb3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal32.c[1245,1258] [2023-12-02 13:34:42,906 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:34:42,920 INFO L206 MainTranslator]: Completed translation [2023-12-02 13:34:42,921 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:34:42 WrapperNode [2023-12-02 13:34:42,921 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 13:34:42,922 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 13:34:42,923 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 13:34:42,923 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 13:34:42,928 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:34:42" (1/1) ... [2023-12-02 13:34:43,184 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:34:42" (1/1) ... [2023-12-02 13:34:45,850 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 40901 [2023-12-02 13:34:45,850 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 13:34:45,851 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 13:34:45,851 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 13:34:45,851 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 13:34:45,858 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:34:42" (1/1) ... [2023-12-02 13:34:45,858 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:34:42" (1/1) ... [2023-12-02 13:34:46,520 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:34:42" (1/1) ... [2023-12-02 13:34:46,520 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:34:42" (1/1) ... [2023-12-02 13:34:47,056 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:34:42" (1/1) ... [2023-12-02 13:34:47,173 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:34:42" (1/1) ... [2023-12-02 13:34:47,335 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:34:42" (1/1) ... [2023-12-02 13:34:47,451 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:34:42" (1/1) ... [2023-12-02 13:34:47,977 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 13:34:47,977 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 13:34:47,978 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 13:34:47,978 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 13:34:47,978 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:34:42" (1/1) ... [2023-12-02 13:34:47,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:34:47,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e40877-22f6-48aa-969f-c2adf8ffcfb3/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:34:48,005 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e40877-22f6-48aa-969f-c2adf8ffcfb3/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 13:34:48,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e40877-22f6-48aa-969f-c2adf8ffcfb3/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 13:34:48,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 13:34:48,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 13:34:48,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 13:34:48,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 13:34:49,620 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 13:34:49,622 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 13:35:11,363 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 13:36:59,508 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 13:36:59,509 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 13:36:59,511 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:36:59 BoogieIcfgContainer [2023-12-02 13:36:59,511 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 13:36:59,513 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 13:36:59,513 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 13:36:59,517 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 13:36:59,517 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:34:40" (1/3) ... [2023-12-02 13:36:59,518 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58ab8320 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:36:59, skipping insertion in model container [2023-12-02 13:36:59,518 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:34:42" (2/3) ... [2023-12-02 13:36:59,518 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58ab8320 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:36:59, skipping insertion in model container [2023-12-02 13:36:59,518 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:36:59" (3/3) ... [2023-12-02 13:36:59,520 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal32.c [2023-12-02 13:36:59,538 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 13:36:59,538 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 13:36:59,584 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 13:36:59,591 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;@4a4be3e7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 13:36:59,591 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 13:36:59,595 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 13:36:59,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-02 13:36:59,601 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:36:59,602 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-12-02 13:36:59,603 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:36:59,607 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:36:59,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1601972022, now seen corresponding path program 1 times [2023-12-02 13:36:59,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:36:59,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026916136] [2023-12-02 13:36:59,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:36:59,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:37:00,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 13:37:00,677 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 13:37:01,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 13:37:01,535 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 13:37:01,537 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 13:37:01,539 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 13:37:01,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 13:37:01,546 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 13:37:01,550 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 13:37:01,591 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-12-02 13:37:01,610 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 01:37:01 BoogieIcfgContainer [2023-12-02 13:37:01,610 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 13:37:01,611 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 13:37:01,611 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 13:37:01,611 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 13:37:01,612 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:36:59" (3/4) ... [2023-12-02 13:37:01,614 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 13:37:01,615 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 13:37:01,617 INFO L158 Benchmark]: Toolchain (without parser) took 141275.13ms. Allocated memory was 127.9MB in the beginning and 13.3GB in the end (delta: 13.2GB). Free memory was 79.0MB in the beginning and 10.5GB in the end (delta: -10.4GB). Peak memory consumption was 2.8GB. Max. memory is 16.1GB. [2023-12-02 13:37:01,617 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 127.9MB. Free memory is still 83.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 13:37:01,618 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2579.04ms. Allocated memory was 127.9MB in the beginning and 438.3MB in the end (delta: 310.4MB). Free memory was 78.8MB in the beginning and 196.4MB in the end (delta: -117.6MB). Peak memory consumption was 194.9MB. Max. memory is 16.1GB. [2023-12-02 13:37:01,619 INFO L158 Benchmark]: Boogie Procedure Inliner took 2927.98ms. Allocated memory was 438.3MB in the beginning and 3.2GB in the end (delta: 2.7GB). Free memory was 196.4MB in the beginning and 2.5GB in the end (delta: -2.3GB). Peak memory consumption was 568.3MB. Max. memory is 16.1GB. [2023-12-02 13:37:01,619 INFO L158 Benchmark]: Boogie Preprocessor took 2125.78ms. Allocated memory is still 3.2GB. Free memory was 2.5GB in the beginning and 2.3GB in the end (delta: 207.6MB). Peak memory consumption was 325.1MB. Max. memory is 16.1GB. [2023-12-02 13:37:01,620 INFO L158 Benchmark]: RCFGBuilder took 131533.39ms. Allocated memory was 3.2GB in the beginning and 13.3GB in the end (delta: 10.2GB). Free memory was 2.3GB in the beginning and 10.8GB in the end (delta: -8.5GB). Peak memory consumption was 6.5GB. Max. memory is 16.1GB. [2023-12-02 13:37:01,621 INFO L158 Benchmark]: TraceAbstraction took 2097.04ms. Allocated memory is still 13.3GB. Free memory was 10.8GB in the beginning and 10.5GB in the end (delta: 339.7MB). Peak memory consumption was 339.7MB. Max. memory is 16.1GB. [2023-12-02 13:37:01,621 INFO L158 Benchmark]: Witness Printer took 4.56ms. Allocated memory is still 13.3GB. Free memory was 10.5GB in the beginning and 10.5GB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 13:37:01,625 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 127.9MB. Free memory is still 83.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2579.04ms. Allocated memory was 127.9MB in the beginning and 438.3MB in the end (delta: 310.4MB). Free memory was 78.8MB in the beginning and 196.4MB in the end (delta: -117.6MB). Peak memory consumption was 194.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 2927.98ms. Allocated memory was 438.3MB in the beginning and 3.2GB in the end (delta: 2.7GB). Free memory was 196.4MB in the beginning and 2.5GB in the end (delta: -2.3GB). Peak memory consumption was 568.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 2125.78ms. Allocated memory is still 3.2GB. Free memory was 2.5GB in the beginning and 2.3GB in the end (delta: 207.6MB). Peak memory consumption was 325.1MB. Max. memory is 16.1GB. * RCFGBuilder took 131533.39ms. Allocated memory was 3.2GB in the beginning and 13.3GB in the end (delta: 10.2GB). Free memory was 2.3GB in the beginning and 10.8GB in the end (delta: -8.5GB). Peak memory consumption was 6.5GB. Max. memory is 16.1GB. * TraceAbstraction took 2097.04ms. Allocated memory is still 13.3GB. Free memory was 10.8GB in the beginning and 10.5GB in the end (delta: 339.7MB). Peak memory consumption was 339.7MB. Max. memory is 16.1GB. * Witness Printer took 4.56ms. Allocated memory is still 13.3GB. Free memory was 10.5GB in the beginning and 10.5GB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 21]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 467, overapproximation of bitwiseAnd at line 345. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 2); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (2 - 1); [L29] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 1); [L30] const SORT_3 msb_SORT_3 = (SORT_3)1 << (1 - 1); [L32] const SORT_6 mask_SORT_6 = (SORT_6)-1 >> (sizeof(SORT_6) * 8 - 4); [L33] const SORT_6 msb_SORT_6 = (SORT_6)1 << (4 - 1); [L35] const SORT_9 mask_SORT_9 = (SORT_9)-1 >> (sizeof(SORT_9) * 8 - 8); [L36] const SORT_9 msb_SORT_9 = (SORT_9)1 << (8 - 1); [L38] const SORT_11 mask_SORT_11 = (SORT_11)-1 >> (sizeof(SORT_11) * 8 - 32); [L39] const SORT_11 msb_SORT_11 = (SORT_11)1 << (32 - 1); [L41] const SORT_21 mask_SORT_21 = (SORT_21)-1 >> (sizeof(SORT_21) * 8 - 12); [L42] const SORT_21 msb_SORT_21 = (SORT_21)1 << (12 - 1); [L44] const SORT_29 mask_SORT_29 = (SORT_29)-1 >> (sizeof(SORT_29) * 8 - 3); [L45] const SORT_29 msb_SORT_29 = (SORT_29)1 << (3 - 1); [L47] const SORT_36 mask_SORT_36 = (SORT_36)-1 >> (sizeof(SORT_36) * 8 - 5); [L48] const SORT_36 msb_SORT_36 = (SORT_36)1 << (5 - 1); [L50] const SORT_47 mask_SORT_47 = (SORT_47)-1 >> (sizeof(SORT_47) * 8 - 6); [L51] const SORT_47 msb_SORT_47 = (SORT_47)1 << (6 - 1); [L53] const SORT_256 mask_SORT_256 = (SORT_256)-1 >> (sizeof(SORT_256) * 8 - 7); [L54] const SORT_256 msb_SORT_256 = (SORT_256)1 << (7 - 1); [L56] const SORT_259 mask_SORT_259 = (SORT_259)-1 >> (sizeof(SORT_259) * 8 - 9); [L57] const SORT_259 msb_SORT_259 = (SORT_259)1 << (9 - 1); [L59] const SORT_261 mask_SORT_261 = (SORT_261)-1 >> (sizeof(SORT_261) * 8 - 10); [L60] const SORT_261 msb_SORT_261 = (SORT_261)1 << (10 - 1); [L62] const SORT_263 mask_SORT_263 = (SORT_263)-1 >> (sizeof(SORT_263) * 8 - 11); [L63] const SORT_263 msb_SORT_263 = (SORT_263)1 << (11 - 1); [L65] const SORT_598 mask_SORT_598 = (SORT_598)-1 >> (sizeof(SORT_598) * 8 - 14); [L66] const SORT_598 msb_SORT_598 = (SORT_598)1 << (14 - 1); [L68] const SORT_600 mask_SORT_600 = (SORT_600)-1 >> (sizeof(SORT_600) * 8 - 16); [L69] const SORT_600 msb_SORT_600 = (SORT_600)1 << (16 - 1); [L71] const SORT_602 mask_SORT_602 = (SORT_602)-1 >> (sizeof(SORT_602) * 8 - 22); [L72] const SORT_602 msb_SORT_602 = (SORT_602)1 << (22 - 1); [L74] const SORT_604 mask_SORT_604 = (SORT_604)-1 >> (sizeof(SORT_604) * 8 - 24); [L75] const SORT_604 msb_SORT_604 = (SORT_604)1 << (24 - 1); [L77] const SORT_606 mask_SORT_606 = (SORT_606)-1 >> (sizeof(SORT_606) * 8 - 30); [L78] const SORT_606 msb_SORT_606 = (SORT_606)1 << (30 - 1); [L80] const SORT_647 mask_SORT_647 = (SORT_647)-1 >> (sizeof(SORT_647) * 8 - 13); [L81] const SORT_647 msb_SORT_647 = (SORT_647)1 << (13 - 1); [L83] const SORT_683 mask_SORT_683 = (SORT_683)-1 >> (sizeof(SORT_683) * 8 - 15); [L84] const SORT_683 msb_SORT_683 = (SORT_683)1 << (15 - 1); [L86] const SORT_688 mask_SORT_688 = (SORT_688)-1 >> (sizeof(SORT_688) * 8 - 17); [L87] const SORT_688 msb_SORT_688 = (SORT_688)1 << (17 - 1); [L89] const SORT_691 mask_SORT_691 = (SORT_691)-1 >> (sizeof(SORT_691) * 8 - 18); [L90] const SORT_691 msb_SORT_691 = (SORT_691)1 << (18 - 1); [L92] const SORT_694 mask_SORT_694 = (SORT_694)-1 >> (sizeof(SORT_694) * 8 - 19); [L93] const SORT_694 msb_SORT_694 = (SORT_694)1 << (19 - 1); [L95] const SORT_697 mask_SORT_697 = (SORT_697)-1 >> (sizeof(SORT_697) * 8 - 20); [L96] const SORT_697 msb_SORT_697 = (SORT_697)1 << (20 - 1); [L98] const SORT_700 mask_SORT_700 = (SORT_700)-1 >> (sizeof(SORT_700) * 8 - 21); [L99] const SORT_700 msb_SORT_700 = (SORT_700)1 << (21 - 1); [L101] const SORT_705 mask_SORT_705 = (SORT_705)-1 >> (sizeof(SORT_705) * 8 - 23); [L102] const SORT_705 msb_SORT_705 = (SORT_705)1 << (23 - 1); [L104] const SORT_710 mask_SORT_710 = (SORT_710)-1 >> (sizeof(SORT_710) * 8 - 25); [L105] const SORT_710 msb_SORT_710 = (SORT_710)1 << (25 - 1); [L107] const SORT_713 mask_SORT_713 = (SORT_713)-1 >> (sizeof(SORT_713) * 8 - 26); [L108] const SORT_713 msb_SORT_713 = (SORT_713)1 << (26 - 1); [L110] const SORT_716 mask_SORT_716 = (SORT_716)-1 >> (sizeof(SORT_716) * 8 - 27); [L111] const SORT_716 msb_SORT_716 = (SORT_716)1 << (27 - 1); [L113] const SORT_719 mask_SORT_719 = (SORT_719)-1 >> (sizeof(SORT_719) * 8 - 28); [L114] const SORT_719 msb_SORT_719 = (SORT_719)1 << (28 - 1); [L116] const SORT_722 mask_SORT_722 = (SORT_722)-1 >> (sizeof(SORT_722) * 8 - 29); [L117] const SORT_722 msb_SORT_722 = (SORT_722)1 << (29 - 1); [L119] const SORT_727 mask_SORT_727 = (SORT_727)-1 >> (sizeof(SORT_727) * 8 - 31); [L120] const SORT_727 msb_SORT_727 = (SORT_727)1 << (31 - 1); [L122] const SORT_773 mask_SORT_773 = (SORT_773)-1 >> (sizeof(SORT_773) * 8 - 33); [L123] const SORT_773 msb_SORT_773 = (SORT_773)1 << (33 - 1); [L125] const SORT_3150 mask_SORT_3150 = (SORT_3150)-1 >> (sizeof(SORT_3150) * 8 - 34); [L126] const SORT_3150 msb_SORT_3150 = (SORT_3150)1 << (34 - 1); [L128] const SORT_3 var_79 = 0; [L129] const SORT_11 var_83 = 0; [L130] const SORT_1 var_89 = 0; [L131] const SORT_3 var_117 = 1; [L132] const SORT_1 var_131 = 3; [L133] const SORT_1 var_133 = 2; [L134] const SORT_1 var_135 = 1; [L135] const SORT_29 var_139 = 1; [L136] const SORT_29 var_142 = 3; [L137] const SORT_29 var_145 = 2; [L138] const SORT_29 var_149 = 5; [L139] const SORT_29 var_152 = 7; [L140] const SORT_29 var_155 = 6; [L141] const SORT_29 var_159 = 4; [L142] const SORT_9 var_185 = 0; [L143] const SORT_36 var_206 = 11; [L144] const SORT_36 var_208 = 10; [L145] const SORT_36 var_210 = 2; [L146] const SORT_36 var_212 = 9; [L147] const SORT_36 var_227 = 21; [L148] const SORT_36 var_229 = 20; [L149] const SORT_36 var_231 = 19; [L150] const SORT_36 var_233 = 18; [L151] const SORT_36 var_235 = 17; [L152] const SORT_36 var_237 = 16; [L153] const SORT_36 var_239 = 15; [L154] const SORT_36 var_241 = 14; [L155] const SORT_36 var_243 = 8; [L156] const SORT_36 var_245 = 6; [L157] const SORT_36 var_247 = 3; [L158] const SORT_36 var_249 = 5; [L159] const SORT_36 var_267 = 4; [L160] const SORT_36 var_269 = 1; [L161] const SORT_36 var_279 = 7; [L162] const SORT_36 var_297 = 13; [L163] const SORT_36 var_305 = 12; [L164] const SORT_36 var_326 = 23; [L165] const SORT_36 var_329 = 22; [L166] const SORT_36 var_338 = 25; [L167] const SORT_36 var_341 = 27; [L168] const SORT_36 var_344 = 26; [L169] const SORT_36 var_348 = 29; [L170] const SORT_36 var_351 = 31; [L171] const SORT_36 var_354 = 30; [L172] const SORT_36 var_358 = 28; [L173] const SORT_36 var_364 = 24; [L174] const SORT_47 var_387 = 0; [L175] const SORT_9 var_463 = 3; [L176] const SORT_29 var_505 = 0; [L177] const SORT_647 var_648 = 0; [L178] const SORT_21 var_649 = 0; [L179] const SORT_773 var_774 = 0; [L180] const SORT_9 var_939 = 2; [L181] const SORT_9 var_942 = 1; [L182] const SORT_6 var_1382 = 8; [L183] const SORT_713 var_1390 = 0; [L184] const SORT_9 var_1471 = 255; [L185] const SORT_47 var_1475 = 1; [L186] const SORT_6 var_1591 = 0; [L187] const SORT_36 var_2503 = 0; [L188] const SORT_6 var_2530 = 1; [L189] const SORT_6 var_2533 = 3; [L190] const SORT_6 var_2536 = 2; [L191] const SORT_6 var_2540 = 5; [L192] const SORT_6 var_2543 = 7; [L193] const SORT_6 var_2546 = 6; [L194] const SORT_6 var_2550 = 4; [L195] const SORT_6 var_2556 = 9; [L196] const SORT_6 var_2559 = 11; [L197] const SORT_6 var_2562 = 10; [L198] const SORT_6 var_2566 = 13; [L199] const SORT_6 var_2569 = 15; [L200] const SORT_6 var_2572 = 14; [L201] const SORT_6 var_2576 = 12; [L202] const SORT_719 var_2762 = 0; [L203] const SORT_3150 var_3152 = 0; [L205] SORT_1 input_2; [L206] SORT_3 input_4; [L207] SORT_3 input_5; [L208] SORT_6 input_7; [L209] SORT_3 input_8; [L210] SORT_9 input_10; [L211] SORT_11 input_12; [L212] SORT_1 input_13; [L213] SORT_9 input_14; [L214] SORT_9 input_15; [L215] SORT_9 input_16; [L216] SORT_1 input_17; [L217] SORT_9 input_18; [L218] SORT_9 input_19; [L219] SORT_9 input_20; [L220] SORT_21 input_22; [L221] SORT_3 input_23; [L222] SORT_3 input_24; [L223] SORT_3 input_25; [L224] SORT_3 input_26; [L225] SORT_3 input_27; [L226] SORT_1 input_28; [L227] SORT_29 input_30; [L228] SORT_1 input_31; [L229] SORT_3 input_32; [L230] SORT_3 input_33; [L231] SORT_3 input_34; [L232] SORT_3 input_35; [L233] SORT_36 input_37; [L234] SORT_1 input_38; [L235] SORT_9 input_39; [L236] SORT_11 input_40; [L237] SORT_29 input_41; [L238] SORT_9 input_42; [L239] SORT_1 input_43; [L240] SORT_11 input_44; [L241] SORT_3 input_45; [L242] SORT_1 input_46; [L243] SORT_47 input_48; [L244] SORT_1 input_49; [L245] SORT_47 input_50; [L246] SORT_1 input_51; [L247] SORT_47 input_52; [L248] SORT_1 input_53; [L249] SORT_47 input_54; [L250] SORT_1 input_55; [L251] SORT_3 input_56; [L252] SORT_9 input_57; [L253] SORT_3 input_58; [L254] SORT_3 input_59; [L255] SORT_11 input_60; [L256] SORT_11 input_61; [L257] SORT_9 input_62; [L258] SORT_11 input_63; [L259] SORT_47 input_64; [L260] SORT_1 input_65; [L261] SORT_47 input_66; [L262] SORT_1 input_67; [L263] SORT_47 input_68; [L264] SORT_1 input_69; [L265] SORT_47 input_70; [L266] SORT_1 input_71; [L267] SORT_29 input_72; [L268] SORT_9 input_73; [L269] SORT_1 input_74; [L270] SORT_9 input_75; [L271] SORT_3 input_76; [L272] SORT_1 input_77; [L273] SORT_1 input_78; [L275] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L275] SORT_3 state_80 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L276] EXPR __VERIFIER_nondet_uint() & mask_SORT_11 [L276] SORT_11 state_84 = __VERIFIER_nondet_uint() & mask_SORT_11; [L277] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L277] SORT_3 state_86 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L278] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L278] SORT_1 state_90 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L279] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L279] SORT_3 state_99 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L280] EXPR __VERIFIER_nondet_uint() & mask_SORT_11 [L280] SORT_11 state_104 = __VERIFIER_nondet_uint() & mask_SORT_11; [L281] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L281] SORT_3 state_121 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L282] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L282] SORT_1 state_124 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L283] EXPR __VERIFIER_nondet_uchar() & mask_SORT_9 [L283] SORT_9 state_186 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L284] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L284] SORT_1 state_411 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L285] EXPR __VERIFIER_nondet_uchar() & mask_SORT_9 [L285] SORT_9 state_493 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L286] EXPR __VERIFIER_nondet_uchar() & mask_SORT_29 [L286] SORT_29 state_506 = __VERIFIER_nondet_uchar() & mask_SORT_29; [L287] EXPR __VERIFIER_nondet_uint() & mask_SORT_11 [L287] SORT_11 state_528 = __VERIFIER_nondet_uint() & mask_SORT_11; [L288] EXPR __VERIFIER_nondet_uchar() & mask_SORT_47 [L288] SORT_47 state_573 = __VERIFIER_nondet_uchar() & mask_SORT_47; [L289] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L289] SORT_1 state_576 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L290] EXPR __VERIFIER_nondet_uchar() & mask_SORT_47 [L290] SORT_47 state_579 = __VERIFIER_nondet_uchar() & mask_SORT_47; [L291] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L291] SORT_1 state_582 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L292] EXPR __VERIFIER_nondet_uchar() & mask_SORT_47 [L292] SORT_47 state_585 = __VERIFIER_nondet_uchar() & mask_SORT_47; [L293] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L293] SORT_1 state_588 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L294] EXPR __VERIFIER_nondet_uchar() & mask_SORT_47 [L294] SORT_47 state_591 = __VERIFIER_nondet_uchar() & mask_SORT_47; [L295] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L295] SORT_1 state_594 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L296] EXPR __VERIFIER_nondet_uchar() & mask_SORT_9 [L296] SORT_9 state_624 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L298] SORT_3 init_81_arg_1 = var_79; [L299] state_80 = init_81_arg_1 [L300] SORT_11 init_85_arg_1 = var_83; [L301] state_84 = init_85_arg_1 [L302] SORT_3 init_87_arg_1 = var_79; [L303] state_86 = init_87_arg_1 [L304] SORT_1 init_91_arg_1 = var_89; [L305] state_90 = init_91_arg_1 [L306] SORT_3 init_100_arg_1 = var_79; [L307] state_99 = init_100_arg_1 [L308] SORT_11 init_105_arg_1 = var_83; [L309] state_104 = init_105_arg_1 [L310] SORT_3 init_122_arg_1 = var_79; [L311] state_121 = init_122_arg_1 [L312] SORT_1 init_125_arg_1 = var_89; [L313] state_124 = init_125_arg_1 [L314] SORT_9 init_187_arg_1 = var_185; [L315] state_186 = init_187_arg_1 [L316] SORT_1 init_412_arg_1 = var_89; [L317] state_411 = init_412_arg_1 [L318] SORT_9 init_494_arg_1 = var_185; [L319] state_493 = init_494_arg_1 [L320] SORT_29 init_507_arg_1 = var_505; [L321] state_506 = init_507_arg_1 [L322] SORT_11 init_529_arg_1 = var_83; [L323] state_528 = init_529_arg_1 [L324] SORT_47 init_574_arg_1 = var_387; [L325] state_573 = init_574_arg_1 [L326] SORT_1 init_577_arg_1 = var_89; [L327] state_576 = init_577_arg_1 [L328] SORT_47 init_580_arg_1 = var_387; [L329] state_579 = init_580_arg_1 [L330] SORT_1 init_583_arg_1 = var_89; [L331] state_582 = init_583_arg_1 [L332] SORT_47 init_586_arg_1 = var_387; [L333] state_585 = init_586_arg_1 [L334] SORT_1 init_589_arg_1 = var_89; [L335] state_588 = init_589_arg_1 [L336] SORT_47 init_592_arg_1 = var_387; [L337] state_591 = init_592_arg_1 [L338] SORT_1 init_595_arg_1 = var_89; [L339] state_594 = init_595_arg_1 [L340] SORT_9 init_625_arg_1 = var_185; [L341] state_624 = init_625_arg_1 VAL [init_100_arg_1=0, init_105_arg_1=0, init_122_arg_1=0, init_125_arg_1=0, init_187_arg_1=0, init_412_arg_1=0, init_494_arg_1=0, init_507_arg_1=0, init_529_arg_1=0, init_574_arg_1=0, init_577_arg_1=0, init_580_arg_1=0, init_583_arg_1=0, init_586_arg_1=0, init_589_arg_1=0, init_592_arg_1=0, init_595_arg_1=0, init_625_arg_1=0, init_81_arg_1=0, init_85_arg_1=0, init_87_arg_1=0, init_91_arg_1=0, mask_SORT_11=4294967295, mask_SORT_1=3, mask_SORT_21=4095, mask_SORT_256=127, mask_SORT_259=511, mask_SORT_261=1023, mask_SORT_263=2047, mask_SORT_29=7, mask_SORT_3150=17179869183, mask_SORT_36=31, mask_SORT_3=1, mask_SORT_47=63, mask_SORT_598=16383, mask_SORT_600=65535, mask_SORT_602=4194303, mask_SORT_604=16777215, mask_SORT_606=1073741823, mask_SORT_647=8191, mask_SORT_683=32767, mask_SORT_688=131071, mask_SORT_691=262143, mask_SORT_694=524287, mask_SORT_697=1048575, mask_SORT_6=15, mask_SORT_700=2097151, mask_SORT_705=8388607, mask_SORT_710=33554431, mask_SORT_713=67108863, mask_SORT_716=134217727, mask_SORT_719=268435455, mask_SORT_722=536870911, mask_SORT_727=2147483647, mask_SORT_773=8589934591, mask_SORT_9=255, msb_SORT_11=2147483648, msb_SORT_1=2, msb_SORT_21=2048, msb_SORT_256=64, msb_SORT_259=256, msb_SORT_261=512, msb_SORT_263=1024, msb_SORT_29=4, msb_SORT_3150=8589934592, msb_SORT_36=16, msb_SORT_3=1, msb_SORT_47=32, msb_SORT_598=8192, msb_SORT_600=32768, msb_SORT_602=2097152, msb_SORT_604=8388608, msb_SORT_606=536870912, msb_SORT_647=4096, msb_SORT_683=16384, msb_SORT_688=65536, msb_SORT_691=131072, msb_SORT_694=262144, msb_SORT_697=524288, msb_SORT_6=8, msb_SORT_700=1048576, msb_SORT_705=4194304, msb_SORT_710=16777216, msb_SORT_713=33554432, msb_SORT_716=67108864, msb_SORT_719=134217728, msb_SORT_722=268435456, msb_SORT_727=1073741824, msb_SORT_773=4294967296, msb_SORT_9=128, state_104=0, state_121=0, state_124=0, state_186=0, state_411=0, state_493=0, state_506=0, state_528=0, state_573=0, state_576=0, state_579=0, state_582=0, state_585=0, state_588=0, state_591=0, state_594=0, state_624=0, state_80=0, state_84=0, state_86=0, state_90=0, state_99=0, var_117=1, var_131=3, var_133=2, var_135=1, var_1382=8, var_1390=0, var_139=1, var_142=3, var_145=2, var_1471=255, var_1475=1, var_149=5, var_152=7, var_155=6, var_1591=0, var_159=4, var_185=0, var_206=11, var_208=10, var_210=2, var_212=9, var_227=21, var_229=20, var_231=19, var_233=18, var_235=17, var_237=16, var_239=15, var_241=14, var_243=8, var_245=6, var_247=3, var_249=5, var_2503=0, var_2530=1, var_2533=3, var_2536=2, var_2540=5, var_2543=7, var_2546=6, var_2550=4, var_2556=9, var_2559=11, var_2562=10, var_2566=13, var_2569=15, var_2572=14, var_2576=12, var_267=4, var_269=1, var_2762=0, var_279=7, var_297=13, var_305=12, var_3152=0, var_326=23, var_329=22, var_338=25, var_341=27, var_344=26, var_348=29, var_351=31, var_354=30, var_358=28, var_364=24, var_387=0, var_463=3, var_505=0, var_648=0, var_649=0, var_774=0, var_79=0, var_83=0, var_89=0, var_939=2, var_942=1] [L344] input_2 = __VERIFIER_nondet_uchar() [L345] EXPR input_2 & mask_SORT_1 [L345] input_2 = input_2 & mask_SORT_1 [L346] input_4 = __VERIFIER_nondet_uchar() [L347] input_5 = __VERIFIER_nondet_uchar() [L348] EXPR input_5 & mask_SORT_3 [L348] input_5 = input_5 & mask_SORT_3 [L349] input_7 = __VERIFIER_nondet_uchar() [L350] EXPR input_7 & mask_SORT_6 [L350] input_7 = input_7 & mask_SORT_6 [L351] input_8 = __VERIFIER_nondet_uchar() [L352] EXPR input_8 & mask_SORT_3 [L352] input_8 = input_8 & mask_SORT_3 [L353] input_10 = __VERIFIER_nondet_uchar() [L354] input_12 = __VERIFIER_nondet_uint() [L355] input_13 = __VERIFIER_nondet_uchar() [L356] EXPR input_13 & mask_SORT_1 [L356] input_13 = input_13 & mask_SORT_1 [L357] input_14 = __VERIFIER_nondet_uchar() [L358] input_15 = __VERIFIER_nondet_uchar() [L359] input_16 = __VERIFIER_nondet_uchar() [L360] input_17 = __VERIFIER_nondet_uchar() [L361] EXPR input_17 & mask_SORT_1 [L361] input_17 = input_17 & mask_SORT_1 [L362] input_18 = __VERIFIER_nondet_uchar() [L363] input_19 = __VERIFIER_nondet_uchar() [L364] input_20 = __VERIFIER_nondet_uchar() [L365] input_22 = __VERIFIER_nondet_ushort() [L366] input_23 = __VERIFIER_nondet_uchar() [L367] EXPR input_23 & mask_SORT_3 [L367] input_23 = input_23 & mask_SORT_3 [L368] input_24 = __VERIFIER_nondet_uchar() [L369] EXPR input_24 & mask_SORT_3 [L369] input_24 = input_24 & mask_SORT_3 [L370] input_25 = __VERIFIER_nondet_uchar() [L371] input_26 = __VERIFIER_nondet_uchar() [L372] EXPR input_26 & mask_SORT_3 [L372] input_26 = input_26 & mask_SORT_3 [L373] input_27 = __VERIFIER_nondet_uchar() [L374] EXPR input_27 & mask_SORT_3 [L374] input_27 = input_27 & mask_SORT_3 [L375] input_28 = __VERIFIER_nondet_uchar() [L376] EXPR input_28 & mask_SORT_1 [L376] input_28 = input_28 & mask_SORT_1 [L377] input_30 = __VERIFIER_nondet_uchar() [L378] EXPR input_30 & mask_SORT_29 [L378] input_30 = input_30 & mask_SORT_29 [L379] input_31 = __VERIFIER_nondet_uchar() [L380] EXPR input_31 & mask_SORT_1 [L380] input_31 = input_31 & mask_SORT_1 [L381] input_32 = __VERIFIER_nondet_uchar() [L382] EXPR input_32 & mask_SORT_3 [L382] input_32 = input_32 & mask_SORT_3 [L383] input_33 = __VERIFIER_nondet_uchar() [L384] input_34 = __VERIFIER_nondet_uchar() [L385] input_35 = __VERIFIER_nondet_uchar() [L386] EXPR input_35 & mask_SORT_3 [L386] input_35 = input_35 & mask_SORT_3 [L387] input_37 = __VERIFIER_nondet_uchar() [L388] EXPR input_37 & mask_SORT_36 [L388] input_37 = input_37 & mask_SORT_36 [L389] input_38 = __VERIFIER_nondet_uchar() [L390] input_39 = __VERIFIER_nondet_uchar() [L391] input_40 = __VERIFIER_nondet_uint() [L392] input_41 = __VERIFIER_nondet_uchar() [L393] input_42 = __VERIFIER_nondet_uchar() [L394] input_43 = __VERIFIER_nondet_uchar() [L395] input_44 = __VERIFIER_nondet_uint() [L396] input_45 = __VERIFIER_nondet_uchar() [L397] input_46 = __VERIFIER_nondet_uchar() [L398] input_48 = __VERIFIER_nondet_uchar() [L399] input_49 = __VERIFIER_nondet_uchar() [L400] input_50 = __VERIFIER_nondet_uchar() [L401] input_51 = __VERIFIER_nondet_uchar() [L402] input_52 = __VERIFIER_nondet_uchar() [L403] input_53 = __VERIFIER_nondet_uchar() [L404] input_54 = __VERIFIER_nondet_uchar() [L405] input_55 = __VERIFIER_nondet_uchar() [L406] input_56 = __VERIFIER_nondet_uchar() [L407] input_57 = __VERIFIER_nondet_uchar() [L408] input_58 = __VERIFIER_nondet_uchar() [L409] input_59 = __VERIFIER_nondet_uchar() [L410] input_60 = __VERIFIER_nondet_uint() [L411] input_61 = __VERIFIER_nondet_uint() [L412] input_62 = __VERIFIER_nondet_uchar() [L413] input_63 = __VERIFIER_nondet_uint() [L414] input_64 = __VERIFIER_nondet_uchar() [L415] input_65 = __VERIFIER_nondet_uchar() [L416] input_66 = __VERIFIER_nondet_uchar() [L417] input_67 = __VERIFIER_nondet_uchar() [L418] input_68 = __VERIFIER_nondet_uchar() [L419] input_69 = __VERIFIER_nondet_uchar() [L420] input_70 = __VERIFIER_nondet_uchar() [L421] input_71 = __VERIFIER_nondet_uchar() [L422] input_72 = __VERIFIER_nondet_uchar() [L423] input_73 = __VERIFIER_nondet_uchar() [L424] input_74 = __VERIFIER_nondet_uchar() [L425] input_75 = __VERIFIER_nondet_uchar() [L426] input_76 = __VERIFIER_nondet_uchar() [L427] input_77 = __VERIFIER_nondet_uchar() [L428] input_78 = __VERIFIER_nondet_uchar() [L431] SORT_3 var_82_arg_0 = state_80; [L432] SORT_3 var_82 = ~var_82_arg_0; [L433] SORT_3 var_101_arg_0 = state_86; [L434] SORT_3 var_101_arg_1 = state_99; [L435] SORT_3 var_101_arg_2 = input_45; [L436] SORT_3 var_101 = var_101_arg_0 ? var_101_arg_1 : var_101_arg_2; [L437] SORT_3 var_92_arg_0 = state_86; [L438] SORT_1 var_92_arg_1 = state_90; [L439] SORT_1 var_92_arg_2 = input_43; [L440] SORT_1 var_92 = var_92_arg_0 ? var_92_arg_1 : var_92_arg_2; [L441] SORT_1 var_95_arg_0 = var_92; [L442] SORT_3 var_95 = var_95_arg_0 >> 0; [L443] EXPR var_95 & mask_SORT_3 [L443] var_95 = var_95 & mask_SORT_3 [L444] SORT_1 var_93_arg_0 = var_92; [L445] SORT_3 var_93 = var_93_arg_0 >> 1; [L446] EXPR var_93 & mask_SORT_3 [L446] var_93 = var_93 & mask_SORT_3 [L447] SORT_3 var_88_arg_0 = state_86; [L448] SORT_11 var_88_arg_1 = state_84; [L449] SORT_11 var_88_arg_2 = input_44; [L450] SORT_11 var_88 = var_88_arg_0 ? var_88_arg_1 : var_88_arg_2; [L451] SORT_3 var_94_arg_0 = var_93; [L452] SORT_11 var_94_arg_1 = var_88; [L453] SORT_11 var_94_arg_2 = var_83; [L454] SORT_11 var_94 = var_94_arg_0 ? var_94_arg_1 : var_94_arg_2; [L455] SORT_3 var_96_arg_0 = var_95; [L456] SORT_11 var_96_arg_1 = var_83; [L457] SORT_11 var_96_arg_2 = var_94; [L458] SORT_11 var_96 = var_96_arg_0 ? var_96_arg_1 : var_96_arg_2; [L459] EXPR var_96 & mask_SORT_11 [L459] var_96 = var_96 & mask_SORT_11 [L460] SORT_11 var_97_arg_0 = var_96; [L461] SORT_3 var_97 = var_97_arg_0 >> 0; [L462] SORT_3 var_98_arg_0 = var_97; [L463] SORT_3 var_98 = ~var_98_arg_0; [L464] EXPR var_98 & mask_SORT_3 [L464] var_98 = var_98 & mask_SORT_3 [L465] SORT_3 var_102_arg_0 = var_101; [L466] SORT_3 var_102_arg_1 = var_98; [L467] EXPR ((SORT_1)var_102_arg_0 << 1) | var_102_arg_1 [L467] SORT_1 var_102 = ((SORT_1)var_102_arg_0 << 1) | var_102_arg_1; [L468] EXPR var_102 & mask_SORT_1 [L468] var_102 = var_102 & mask_SORT_1 [L469] SORT_1 var_103_arg_0 = var_102; [L470] SORT_3 var_103 = var_103_arg_0 == mask_SORT_1; [L471] SORT_3 var_106_arg_0 = state_86; [L472] SORT_11 var_106_arg_1 = state_104; [L473] SORT_11 var_106_arg_2 = input_44; [L474] SORT_11 var_106 = var_106_arg_0 ? var_106_arg_1 : var_106_arg_2; [L475] SORT_3 var_107_arg_0 = var_93; [L476] SORT_11 var_107_arg_1 = var_106; [L477] SORT_11 var_107_arg_2 = var_83; [L478] SORT_11 var_107 = var_107_arg_0 ? var_107_arg_1 : var_107_arg_2; [L479] SORT_3 var_108_arg_0 = var_95; [L480] SORT_11 var_108_arg_1 = var_83; [L481] SORT_11 var_108_arg_2 = var_107; [L482] SORT_11 var_108 = var_108_arg_0 ? var_108_arg_1 : var_108_arg_2; [L483] SORT_11 var_109_arg_0 = var_108; [L484] SORT_3 var_109 = var_109_arg_0 >> 0; [L485] SORT_3 var_110_arg_0 = var_109; [L486] SORT_3 var_110 = ~var_110_arg_0; [L487] EXPR var_110 & mask_SORT_3 [L487] var_110 = var_110 & mask_SORT_3 [L488] SORT_3 var_111_arg_0 = var_101; [L489] SORT_3 var_111_arg_1 = var_110; [L490] EXPR ((SORT_1)var_111_arg_0 << 1) | var_111_arg_1 [L490] SORT_1 var_111 = ((SORT_1)var_111_arg_0 << 1) | var_111_arg_1; [L491] EXPR var_111 & mask_SORT_1 [L491] var_111 = var_111 & mask_SORT_1 [L492] SORT_1 var_112_arg_0 = var_111; [L493] SORT_3 var_112 = var_112_arg_0 == mask_SORT_1; [L494] SORT_3 var_113_arg_0 = var_103; [L495] SORT_3 var_113_arg_1 = var_112; [L496] SORT_3 var_113 = var_113_arg_0 == var_113_arg_1; [L497] SORT_3 var_114_arg_0 = var_82; [L498] SORT_3 var_114_arg_1 = var_113; [L499] EXPR var_114_arg_0 | var_114_arg_1 [L499] SORT_3 var_114 = var_114_arg_0 | var_114_arg_1; [L500] SORT_3 var_118_arg_0 = var_114; [L501] SORT_3 var_118 = ~var_118_arg_0; [L502] SORT_3 var_119_arg_0 = var_117; [L503] SORT_3 var_119_arg_1 = var_118; [L504] EXPR var_119_arg_0 & var_119_arg_1 [L504] SORT_3 var_119 = var_119_arg_0 & var_119_arg_1; [L505] EXPR var_119 & mask_SORT_3 [L505] var_119 = var_119 & mask_SORT_3 [L506] SORT_3 bad_120_arg_0 = var_119; [L507] CALL __VERIFIER_assert(!(bad_120_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: 2.0s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s 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 13:37:01,678 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e40877-22f6-48aa-969f-c2adf8ffcfb3/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_31e40877-22f6-48aa-969f-c2adf8ffcfb3/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e40877-22f6-48aa-969f-c2adf8ffcfb3/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_31e40877-22f6-48aa-969f-c2adf8ffcfb3/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e40877-22f6-48aa-969f-c2adf8ffcfb3/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal32.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e40877-22f6-48aa-969f-c2adf8ffcfb3/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_31e40877-22f6-48aa-969f-c2adf8ffcfb3/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 d4b828fa93b5d6014948abfbb816d407ef4c58e959e4e8b2a37658f7831f7658 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 13:37:04,204 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 13:37:04,273 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e40877-22f6-48aa-969f-c2adf8ffcfb3/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2023-12-02 13:37:04,278 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 13:37:04,279 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 13:37:04,306 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 13:37:04,306 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 13:37:04,307 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 13:37:04,308 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 13:37:04,308 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 13:37:04,309 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 13:37:04,310 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 13:37:04,310 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 13:37:04,311 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 13:37:04,311 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 13:37:04,312 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 13:37:04,313 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 13:37:04,313 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 13:37:04,314 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 13:37:04,314 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 13:37:04,315 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 13:37:04,315 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 13:37:04,316 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 13:37:04,316 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 13:37:04,317 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 13:37:04,317 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 13:37:04,318 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 13:37:04,318 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 13:37:04,319 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 13:37:04,319 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 13:37:04,319 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 13:37:04,320 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:37:04,320 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 13:37:04,320 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 13:37:04,321 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 13:37:04,321 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 13:37:04,321 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 13:37:04,321 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 13:37:04,321 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 13:37:04,322 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 13:37:04,322 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 13:37:04,322 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_31e40877-22f6-48aa-969f-c2adf8ffcfb3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e40877-22f6-48aa-969f-c2adf8ffcfb3/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4b828fa93b5d6014948abfbb816d407ef4c58e959e4e8b2a37658f7831f7658 [2023-12-02 13:37:04,628 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 13:37:04,647 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 13:37:04,649 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 13:37:04,650 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 13:37:04,651 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 13:37:04,652 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e40877-22f6-48aa-969f-c2adf8ffcfb3/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal32.c [2023-12-02 13:37:07,365 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 13:37:07,860 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 13:37:07,861 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e40877-22f6-48aa-969f-c2adf8ffcfb3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal32.c [2023-12-02 13:37:07,901 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e40877-22f6-48aa-969f-c2adf8ffcfb3/bin/utaipan-verify-nQ1chXbOIh/data/75f866e62/e98b4a33585544f7b0026b0997598482/FLAG55efe241c [2023-12-02 13:37:07,917 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e40877-22f6-48aa-969f-c2adf8ffcfb3/bin/utaipan-verify-nQ1chXbOIh/data/75f866e62/e98b4a33585544f7b0026b0997598482 [2023-12-02 13:37:07,920 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 13:37:07,921 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 13:37:07,923 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 13:37:07,923 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 13:37:07,928 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 13:37:07,928 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:37:07" (1/1) ... [2023-12-02 13:37:07,930 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54207555 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:07, skipping insertion in model container [2023-12-02 13:37:07,930 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:37:07" (1/1) ... [2023-12-02 13:37:08,126 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 13:37:08,391 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_31e40877-22f6-48aa-969f-c2adf8ffcfb3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal32.c[1245,1258] [2023-12-02 13:37:09,243 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:37:09,256 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 13:37:09,268 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_31e40877-22f6-48aa-969f-c2adf8ffcfb3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal32.c[1245,1258] [2023-12-02 13:37:09,965 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:37:09,979 INFO L206 MainTranslator]: Completed translation [2023-12-02 13:37:09,980 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:09 WrapperNode [2023-12-02 13:37:09,980 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 13:37:09,981 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 13:37:09,981 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 13:37:09,982 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 13:37:09,989 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:09" (1/1) ... [2023-12-02 13:37:10,125 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:09" (1/1) ... [2023-12-02 13:37:10,556 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 10887 [2023-12-02 13:37:10,557 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 13:37:10,558 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 13:37:10,559 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 13:37:10,559 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 13:37:10,569 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:09" (1/1) ... [2023-12-02 13:37:10,569 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:09" (1/1) ... [2023-12-02 13:37:10,647 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:09" (1/1) ... [2023-12-02 13:37:10,648 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:09" (1/1) ... [2023-12-02 13:37:10,815 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:09" (1/1) ... [2023-12-02 13:37:10,834 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:09" (1/1) ... [2023-12-02 13:37:10,877 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:09" (1/1) ... [2023-12-02 13:37:10,909 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:09" (1/1) ... [2023-12-02 13:37:11,044 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 13:37:11,045 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 13:37:11,045 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 13:37:11,045 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 13:37:11,046 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:09" (1/1) ... [2023-12-02 13:37:11,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:37:11,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e40877-22f6-48aa-969f-c2adf8ffcfb3/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:37:11,107 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e40877-22f6-48aa-969f-c2adf8ffcfb3/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 13:37:11,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e40877-22f6-48aa-969f-c2adf8ffcfb3/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 13:37:11,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 13:37:11,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 13:37:11,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 13:37:11,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 13:37:12,351 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 13:37:12,353 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 13:38:19,827 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 13:38:20,160 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 13:38:20,160 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 13:38:20,161 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:38:20 BoogieIcfgContainer [2023-12-02 13:38:20,161 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 13:38:20,163 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 13:38:20,164 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 13:38:20,167 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 13:38:20,167 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:37:07" (1/3) ... [2023-12-02 13:38:20,168 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7388bea1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:38:20, skipping insertion in model container [2023-12-02 13:38:20,168 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:09" (2/3) ... [2023-12-02 13:38:20,168 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7388bea1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:38:20, skipping insertion in model container [2023-12-02 13:38:20,168 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:38:20" (3/3) ... [2023-12-02 13:38:20,170 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal32.c [2023-12-02 13:38:20,187 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 13:38:20,188 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 13:38:20,233 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 13:38:20,239 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;@4aefa667, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 13:38:20,239 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 13:38:20,243 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 13:38:20,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-02 13:38:20,249 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:38:20,249 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-12-02 13:38:20,250 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:38:20,255 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:38:20,255 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2023-12-02 13:38:20,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 13:38:20,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [337225319] [2023-12-02 13:38:20,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:38:20,271 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 13:38:20,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e40877-22f6-48aa-969f-c2adf8ffcfb3/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 13:38:20,274 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e40877-22f6-48aa-969f-c2adf8ffcfb3/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 13:38:20,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e40877-22f6-48aa-969f-c2adf8ffcfb3/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 13:38:21,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:38:21,741 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-02 13:38:21,837 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:38:22,008 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 13:38:22,008 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 13:38:22,009 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 13:38:22,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [337225319] [2023-12-02 13:38:22,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [337225319] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:38:22,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:38:22,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:38:22,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680850845] [2023-12-02 13:38:22,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:38:22,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 13:38:22,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 13:38:22,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 13:38:22,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 13:38:22,046 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 13:38:24,698 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.53s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:38:26,725 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:38:28,748 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:38:31,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.50s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:38:33,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:38:33,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:38:33,367 INFO L93 Difference]: Finished difference Result 16 states and 24 transitions. [2023-12-02 13:38:33,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 13:38:33,432 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 13:38:33,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:38:33,437 INFO L225 Difference]: With dead ends: 16 [2023-12-02 13:38:33,437 INFO L226 Difference]: Without dead ends: 9 [2023-12-02 13:38:33,439 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 13:38:33,441 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 3 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2023-12-02 13:38:33,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 7 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 5 Unknown, 0 Unchecked, 11.2s Time] [2023-12-02 13:38:33,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-12-02 13:38:33,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2023-12-02 13:38:33,461 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 13:38:33,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2023-12-02 13:38:33,462 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2023-12-02 13:38:33,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:38:33,463 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2023-12-02 13:38:33,463 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 13:38:33,463 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2023-12-02 13:38:33,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 13:38:33,463 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:38:33,464 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2023-12-02 13:38:33,469 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e40877-22f6-48aa-969f-c2adf8ffcfb3/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 13:38:33,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e40877-22f6-48aa-969f-c2adf8ffcfb3/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 13:38:33,665 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:38:33,665 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:38:33,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1393329571, now seen corresponding path program 1 times [2023-12-02 13:38:33,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 13:38:33,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2134743250] [2023-12-02 13:38:33,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:38:33,674 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 13:38:33,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e40877-22f6-48aa-969f-c2adf8ffcfb3/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 13:38:33,675 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e40877-22f6-48aa-969f-c2adf8ffcfb3/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 13:38:33,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e40877-22f6-48aa-969f-c2adf8ffcfb3/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 13:39:48,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:39:48,445 INFO L262 TraceCheckSpWp]: Trace formula consists of 9065 conjuncts, 69 conjunts are in the unsatisfiable core [2023-12-02 13:39:48,516 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:39:49,630 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 13:39:49,630 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:39:55,704 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_3~0#1|))) (let ((.cse10 (forall ((|v_ULTIMATE.start_main_~var_114_arg_0~0#1_13| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_119_arg_0~0#1_13| (_ BitVec 8))) (= ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_114_arg_0~0#1_13|) (_ bv0 32))))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_119_arg_0~0#1_13|)))))) (_ bv0 8)))) (.cse9 (forall ((|v_ULTIMATE.start_main_~var_114_arg_0~0#1_13| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_119_arg_0~0#1_13| (_ BitVec 8))) (= ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_114_arg_0~0#1_13|) (_ bv1 32))))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_119_arg_0~0#1_13|)))))) (_ bv0 8)))) (.cse8 ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_1~0#1|))) (let ((.cse17 (let ((.cse20 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvand |c_ULTIMATE.start_main_~var_83~0#1| |c_ULTIMATE.start_main_~mask_SORT_11~0#1|)))))))))) (.cse19 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_main_~var_83~0#1|)))))))))) (and (or .cse10 (forall ((|v_ULTIMATE.start_main_~var_111_arg_0~0#1_13| (_ BitVec 8))) (let ((.cse18 (bvshl ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_111_arg_0~0#1_13|) (_ bv1 32)))) (or (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse8 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse18 .cse19)))))) .cse8) (not (= .cse8 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse8 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse18 .cse20)))))))))))) (or (forall ((|v_ULTIMATE.start_main_~var_111_arg_0~0#1_13| (_ BitVec 8))) (= .cse8 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse8 ((_ zero_extend 24) ((_ extract 7 0) (bvor (bvshl ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_111_arg_0~0#1_13|) (_ bv1 32)) .cse20)))))))) .cse9) (or .cse9 (forall ((|v_ULTIMATE.start_main_~var_111_arg_0~0#1_13| (_ BitVec 8))) (not (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse8 ((_ zero_extend 24) ((_ extract 7 0) (bvor (bvshl ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_111_arg_0~0#1_13|) (_ bv1 32)) .cse19)))))) .cse8))))))) (.cse14 (forall ((|v_ULTIMATE.start_main_~var_95_arg_0~0#1_13| (_ BitVec 8))) (not (= ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_95_arg_0~0#1_13|))))) (_ bv0 8)))))) (let ((.cse6 (or .cse17 .cse14)) (.cse15 (forall ((|v_ULTIMATE.start_main_~var_93_arg_0~0#1_13| (_ BitVec 8))) (= ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvashr ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_93_arg_0~0#1_13|) (_ bv1 32)))))) (_ bv0 8)))) (.cse5 (or .cse17 (forall ((|v_ULTIMATE.start_main_~var_95_arg_0~0#1_13| (_ BitVec 8))) (= ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_95_arg_0~0#1_13|))))) (_ bv0 8)))))) (let ((.cse4 (= ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_80~0#1|)))))) (_ bv0 8))) (.cse2 (or .cse15 (and (or (and (or (forall ((|v_ULTIMATE.start_main_~var_111_arg_0~0#1_13| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_107~0#1_13| (_ BitVec 32))) (not (= .cse8 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse8 ((_ zero_extend 24) ((_ extract 7 0) (bvor (bvshl ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_111_arg_0~0#1_13|) (_ bv1 32)) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) |v_ULTIMATE.start_main_~var_107~0#1_13|))))))))))))))))) .cse9) (or .cse9 (forall ((|v_ULTIMATE.start_main_~var_111_arg_0~0#1_13| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_107~0#1_13| (_ BitVec 32))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse8 ((_ zero_extend 24) ((_ extract 7 0) (bvor (bvshl ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_111_arg_0~0#1_13|) (_ bv1 32)) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvand |c_ULTIMATE.start_main_~mask_SORT_11~0#1| |v_ULTIMATE.start_main_~var_107~0#1_13|))))))))))))))) .cse8))) (or .cse10 (forall ((|v_ULTIMATE.start_main_~var_111_arg_0~0#1_13| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_107~0#1_13| (_ BitVec 32))) (let ((.cse16 (bvshl ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_111_arg_0~0#1_13|) (_ bv1 32)))) (or (= .cse8 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse8 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse16 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) |v_ULTIMATE.start_main_~var_107~0#1_13|))))))))))))))) (not (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse8 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse16 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvand |c_ULTIMATE.start_main_~mask_SORT_11~0#1| |v_ULTIMATE.start_main_~var_107~0#1_13|))))))))))))))) .cse8))))))) .cse14) .cse5))) (.cse1 (and (or (and (or (forall ((|v_ULTIMATE.start_main_~var_94~0#1_13| (_ BitVec 32)) (|v_ULTIMATE.start_main_~var_111_arg_0~0#1_13| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_107~0#1_13| (_ BitVec 32))) (let ((.cse7 (bvshl ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_111_arg_0~0#1_13|) (_ bv1 32)))) (or (= ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvand |c_ULTIMATE.start_main_~mask_SORT_11~0#1| |v_ULTIMATE.start_main_~var_94~0#1_13|))))))))) .cse7))) .cse8))) .cse8) (= .cse8 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse8 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse7 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) |v_ULTIMATE.start_main_~var_107~0#1_13|)))))))))))))))))) .cse9) (or .cse10 (forall ((|v_ULTIMATE.start_main_~var_94~0#1_13| (_ BitVec 32)) (|v_ULTIMATE.start_main_~var_111_arg_0~0#1_13| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_107~0#1_13| (_ BitVec 32))) (let ((.cse11 (bvshl ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_111_arg_0~0#1_13|) (_ bv1 32)))) (or (not (= .cse8 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse8 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse11 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) |v_ULTIMATE.start_main_~var_107~0#1_13|)))))))))))))))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvand |c_ULTIMATE.start_main_~mask_SORT_11~0#1| |v_ULTIMATE.start_main_~var_94~0#1_13|))))))))) .cse11))) .cse8))) .cse8))))) (or .cse10 (forall ((|v_ULTIMATE.start_main_~var_94~0#1_13| (_ BitVec 32)) (|v_ULTIMATE.start_main_~var_111_arg_0~0#1_13| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_107~0#1_13| (_ BitVec 32))) (let ((.cse12 (bvshl ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_111_arg_0~0#1_13|) (_ bv1 32)))) (or (= .cse8 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse8 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse12 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) |v_ULTIMATE.start_main_~var_107~0#1_13|))))))))))))))) (not (= ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvand |c_ULTIMATE.start_main_~mask_SORT_11~0#1| |v_ULTIMATE.start_main_~var_94~0#1_13|))))))))) .cse12))) .cse8))) .cse8)))))) (or (forall ((|v_ULTIMATE.start_main_~var_94~0#1_13| (_ BitVec 32)) (|v_ULTIMATE.start_main_~var_111_arg_0~0#1_13| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_107~0#1_13| (_ BitVec 32))) (let ((.cse13 (bvshl ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_111_arg_0~0#1_13|) (_ bv1 32)))) (or (not (= .cse8 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse8 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse13 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) |v_ULTIMATE.start_main_~var_107~0#1_13|)))))))))))))))) (not (= ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvand |c_ULTIMATE.start_main_~mask_SORT_11~0#1| |v_ULTIMATE.start_main_~var_94~0#1_13|))))))))) .cse13))) .cse8))) .cse8))))) .cse9)) .cse14 .cse15) .cse5 .cse6)) (.cse3 (or (and .cse5 .cse6) (forall ((|v_ULTIMATE.start_main_~var_93_arg_0~0#1_13| (_ BitVec 8))) (not (= ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvashr ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_93_arg_0~0#1_13|) (_ bv1 32)))))) (_ bv0 8))))))) (and (or (and (or (forall ((|v_ULTIMATE.start_main_~var_4062_arg_2~0#1_13| (_ BitVec 8))) (= ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_4062_arg_2~0#1_13|))))) (_ bv0 8))) .cse1) .cse2 .cse3) (not .cse4)) (or .cse4 (and .cse2 (or .cse1 (= ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_79~0#1|))))) (_ bv0 8))) .cse3)))))))) is different from false [2023-12-02 13:39:58,160 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2023-12-02 13:39:58,160 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 13:39:58,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2134743250] [2023-12-02 13:39:58,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2134743250] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:39:58,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1221190757] [2023-12-02 13:39:58,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:39:58,161 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 13:39:58,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e40877-22f6-48aa-969f-c2adf8ffcfb3/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 13:39:58,162 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e40877-22f6-48aa-969f-c2adf8ffcfb3/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 13:39:58,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e40877-22f6-48aa-969f-c2adf8ffcfb3/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-02 13:40:08,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:40:08,714 INFO L262 TraceCheckSpWp]: Trace formula consists of 9065 conjuncts, 78 conjunts are in the unsatisfiable core [2023-12-02 13:40:08,757 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:40:09,616 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 13:40:09,616 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:40:20,359 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 13:40:20,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1221190757] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:40:20,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1046106145] [2023-12-02 13:40:20,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:40:20,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:40:20,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e40877-22f6-48aa-969f-c2adf8ffcfb3/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:40:20,361 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e40877-22f6-48aa-969f-c2adf8ffcfb3/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:40:20,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e40877-22f6-48aa-969f-c2adf8ffcfb3/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 13:40:23,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:40:23,468 INFO L262 TraceCheckSpWp]: Trace formula consists of 9065 conjuncts, 76 conjunts are in the unsatisfiable core [2023-12-02 13:40:23,509 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:40:24,293 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 13:40:24,293 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:40:48,868 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 13:40:48,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1046106145] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:40:48,868 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-12-02 13:40:48,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 5, 4, 5, 5] total 15 [2023-12-02 13:40:48,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034661787] [2023-12-02 13:40:48,869 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-12-02 13:40:48,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-02 13:40:48,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 13:40:48,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-02 13:40:48,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=147, Unknown=14, NotChecked=26, Total=240 [2023-12-02 13:40:48,872 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 13:40:51,815 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.54s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:40:53,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:40:55,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 13:40:57,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:40:59,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:41:01,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:41:03,937 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 13:41:05,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:41:07,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:41:10,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 13:41:12,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.49s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:41:14,700 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:41:16,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 13:41:18,743 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 13:41:20,763 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:41:22,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:41:24,800 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:41:26,821 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:41:28,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 13:41:30,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 13:41:32,886 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:41:34,906 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:41:36,930 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 13:41:38,953 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 13:41:41,611 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.52s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:41:43,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 13:41:45,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 13:41:47,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:41:49,698 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:41:51,723 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:41:53,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:41:55,765 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 13:41:57,795 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 13:41:59,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:42:01,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:42:03,855 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 13:42:05,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 13:42:05,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:42:05,876 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2023-12-02 13:42:05,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 13:42:05,944 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 13:42:05,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:42:05,945 INFO L225 Difference]: With dead ends: 14 [2023-12-02 13:42:05,945 INFO L226 Difference]: Without dead ends: 12 [2023-12-02 13:42:05,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 33.5s TimeCoverageRelationStatistics Valid=90, Invalid=206, Unknown=14, NotChecked=32, Total=342 [2023-12-02 13:42:05,946 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 16 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 4 mSolverCounterUnsat, 37 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 76.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 37 IncrementalHoareTripleChecker+Unknown, 7 IncrementalHoareTripleChecker+Unchecked, 76.3s IncrementalHoareTripleChecker+Time [2023-12-02 13:42:05,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 21 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 19 Invalid, 37 Unknown, 7 Unchecked, 76.3s Time] [2023-12-02 13:42:05,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2023-12-02 13:42:05,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2023-12-02 13:42:05,948 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 13:42:05,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2023-12-02 13:42:05,949 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 7 [2023-12-02 13:42:05,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:42:05,949 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2023-12-02 13:42:05,949 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 13:42:05,949 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2023-12-02 13:42:05,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 13:42:05,950 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:42:05,950 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1] [2023-12-02 13:42:05,983 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e40877-22f6-48aa-969f-c2adf8ffcfb3/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-02 13:42:06,206 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e40877-22f6-48aa-969f-c2adf8ffcfb3/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)] Forceful destruction successful, exit code 0 [2023-12-02 13:42:06,403 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e40877-22f6-48aa-969f-c2adf8ffcfb3/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-12-02 13:42:06,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e40877-22f6-48aa-969f-c2adf8ffcfb3/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e40877-22f6-48aa-969f-c2adf8ffcfb3/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=3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e40877-22f6-48aa-969f-c2adf8ffcfb3/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt [2023-12-02 13:42:06,551 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:42:06,552 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:42:06,552 INFO L85 PathProgramCache]: Analyzing trace with hash -2112524529, now seen corresponding path program 2 times [2023-12-02 13:42:06,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 13:42:06,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1235093753] [2023-12-02 13:42:06,567 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-02 13:42:06,567 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 13:42:06,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e40877-22f6-48aa-969f-c2adf8ffcfb3/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 13:42:06,568 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e40877-22f6-48aa-969f-c2adf8ffcfb3/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 13:42:06,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e40877-22f6-48aa-969f-c2adf8ffcfb3/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 13:47:05,743 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-02 13:47:05,743 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 13:47:06,225 INFO L262 TraceCheckSpWp]: Trace formula consists of 17834 conjuncts, 216 conjunts are in the unsatisfiable core [2023-12-02 13:47:06,269 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:47:22,772 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:47:22,773 INFO L327 TraceCheckSpWp]: Computing backward predicates...