./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p02.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fb8e89-efea-4823-8fbd-034e35353c8b/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fb8e89-efea-4823-8fbd-034e35353c8b/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fb8e89-efea-4823-8fbd-034e35353c8b/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fb8e89-efea-4823-8fbd-034e35353c8b/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p02.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fb8e89-efea-4823-8fbd-034e35353c8b/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fb8e89-efea-4823-8fbd-034e35353c8b/bin/uautomizer-verify-4GaUIPS5ZU --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c9237163e2805f66062dc578af6664f7122718fcb3464bd31fd071298f5647b0 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 21:59:25,070 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 21:59:25,167 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fb8e89-efea-4823-8fbd-034e35353c8b/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-31 21:59:25,175 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 21:59:25,176 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 21:59:25,211 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 21:59:25,216 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 21:59:25,216 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 21:59:25,217 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 21:59:25,219 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 21:59:25,219 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 21:59:25,220 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 21:59:25,221 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 21:59:25,222 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 21:59:25,222 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 21:59:25,223 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 21:59:25,223 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 21:59:25,224 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 21:59:25,224 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 21:59:25,225 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 21:59:25,225 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 21:59:25,226 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 21:59:25,226 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 21:59:25,227 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 21:59:25,227 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 21:59:25,228 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 21:59:25,228 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 21:59:25,229 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 21:59:25,229 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 21:59:25,230 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:59:25,230 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 21:59:25,231 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 21:59:25,231 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 21:59:25,232 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 21:59:25,232 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 21:59:25,232 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 21:59:25,233 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 21:59:25,233 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 21:59:25,234 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 21:59:25,234 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_80fb8e89-efea-4823-8fbd-034e35353c8b/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fb8e89-efea-4823-8fbd-034e35353c8b/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c9237163e2805f66062dc578af6664f7122718fcb3464bd31fd071298f5647b0 [2024-10-31 21:59:25,562 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 21:59:25,587 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 21:59:25,592 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 21:59:25,593 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 21:59:25,594 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 21:59:25,596 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fb8e89-efea-4823-8fbd-034e35353c8b/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p02.c Unable to find full path for "g++" [2024-10-31 21:59:27,812 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 21:59:28,085 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 21:59:28,085 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fb8e89-efea-4823-8fbd-034e35353c8b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p02.c [2024-10-31 21:59:28,103 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fb8e89-efea-4823-8fbd-034e35353c8b/bin/uautomizer-verify-4GaUIPS5ZU/data/b716acbad/b97f9a59be1e401ab971f2201e981a1e/FLAG02a1d430a [2024-10-31 21:59:28,119 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fb8e89-efea-4823-8fbd-034e35353c8b/bin/uautomizer-verify-4GaUIPS5ZU/data/b716acbad/b97f9a59be1e401ab971f2201e981a1e [2024-10-31 21:59:28,122 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 21:59:28,126 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 21:59:28,129 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 21:59:28,130 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 21:59:28,137 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 21:59:28,138 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:59:28" (1/1) ... [2024-10-31 21:59:28,139 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dd50ba4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:28, skipping insertion in model container [2024-10-31 21:59:28,139 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:59:28" (1/1) ... [2024-10-31 21:59:28,212 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 21:59:28,443 WARN L251 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_80fb8e89-efea-4823-8fbd-034e35353c8b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p02.c[1259,1272] [2024-10-31 21:59:28,835 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:59:28,849 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 21:59:28,862 WARN L251 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_80fb8e89-efea-4823-8fbd-034e35353c8b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p02.c[1259,1272] [2024-10-31 21:59:29,083 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:59:29,132 INFO L204 MainTranslator]: Completed translation [2024-10-31 21:59:29,133 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:29 WrapperNode [2024-10-31 21:59:29,133 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 21:59:29,134 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 21:59:29,134 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 21:59:29,138 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 21:59:29,151 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:29" (1/1) ... [2024-10-31 21:59:29,219 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:29" (1/1) ... [2024-10-31 21:59:29,497 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2114 [2024-10-31 21:59:29,497 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 21:59:29,498 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 21:59:29,499 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 21:59:29,499 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 21:59:29,511 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:29" (1/1) ... [2024-10-31 21:59:29,512 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:29" (1/1) ... [2024-10-31 21:59:29,554 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:29" (1/1) ... [2024-10-31 21:59:29,701 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-31 21:59:29,702 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:29" (1/1) ... [2024-10-31 21:59:29,702 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:29" (1/1) ... [2024-10-31 21:59:29,788 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:29" (1/1) ... [2024-10-31 21:59:29,808 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:29" (1/1) ... [2024-10-31 21:59:29,832 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:29" (1/1) ... [2024-10-31 21:59:29,846 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:29" (1/1) ... [2024-10-31 21:59:29,881 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 21:59:29,883 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 21:59:29,883 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 21:59:29,883 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 21:59:29,884 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:29" (1/1) ... [2024-10-31 21:59:29,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:59:29,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fb8e89-efea-4823-8fbd-034e35353c8b/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:29,917 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fb8e89-efea-4823-8fbd-034e35353c8b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 21:59:29,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fb8e89-efea-4823-8fbd-034e35353c8b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 21:59:29,955 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 21:59:29,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 21:59:29,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 21:59:29,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 21:59:30,325 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 21:59:30,327 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 21:59:32,983 INFO L? ?]: Removed 1324 outVars from TransFormulas that were not future-live. [2024-10-31 21:59:32,984 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 21:59:33,015 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 21:59:33,015 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-31 21:59:33,015 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:59:33 BoogieIcfgContainer [2024-10-31 21:59:33,016 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 21:59:33,022 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 21:59:33,022 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 21:59:33,027 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 21:59:33,027 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 09:59:28" (1/3) ... [2024-10-31 21:59:33,028 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@203e8775 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:59:33, skipping insertion in model container [2024-10-31 21:59:33,028 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:29" (2/3) ... [2024-10-31 21:59:33,030 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@203e8775 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:59:33, skipping insertion in model container [2024-10-31 21:59:33,030 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:59:33" (3/3) ... [2024-10-31 21:59:33,031 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_vsaR_p02.c [2024-10-31 21:59:33,052 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 21:59:33,053 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-31 21:59:33,154 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 21:59:33,161 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, 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;@3a0653eb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 21:59:33,161 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-31 21:59:33,169 INFO L276 IsEmpty]: Start isEmpty. Operand has 531 states, 529 states have (on average 1.4990548204158791) internal successors, (793), 530 states have internal predecessors, (793), 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) [2024-10-31 21:59:33,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-10-31 21:59:33,179 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:33,180 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:33,181 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:59:33,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:33,190 INFO L85 PathProgramCache]: Analyzing trace with hash 387884158, now seen corresponding path program 1 times [2024-10-31 21:59:33,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:33,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531371193] [2024-10-31 21:59:33,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:33,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:33,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:34,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:34,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:34,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531371193] [2024-10-31 21:59:34,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531371193] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:34,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:34,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 21:59:34,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380594707] [2024-10-31 21:59:34,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:34,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 21:59:34,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:34,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:59:34,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:59:34,145 INFO L87 Difference]: Start difference. First operand has 531 states, 529 states have (on average 1.4990548204158791) internal successors, (793), 530 states have internal predecessors, (793), 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 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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) [2024-10-31 21:59:34,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:34,273 INFO L93 Difference]: Finished difference Result 1007 states and 1507 transitions. [2024-10-31 21:59:34,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 21:59:34,276 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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 41 [2024-10-31 21:59:34,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:34,289 INFO L225 Difference]: With dead ends: 1007 [2024-10-31 21:59:34,290 INFO L226 Difference]: Without dead ends: 530 [2024-10-31 21:59:34,294 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:59:34,297 INFO L432 NwaCegarLoop]: 787 mSDtfsCounter, 0 mSDsluCounter, 1568 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2355 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:34,298 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2355 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 21:59:34,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2024-10-31 21:59:34,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 530. [2024-10-31 21:59:34,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 529 states have (on average 1.4952741020793952) internal successors, (791), 529 states have internal predecessors, (791), 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) [2024-10-31 21:59:34,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 791 transitions. [2024-10-31 21:59:34,377 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 791 transitions. Word has length 41 [2024-10-31 21:59:34,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:34,378 INFO L471 AbstractCegarLoop]: Abstraction has 530 states and 791 transitions. [2024-10-31 21:59:34,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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) [2024-10-31 21:59:34,378 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 791 transitions. [2024-10-31 21:59:34,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-10-31 21:59:34,380 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:34,380 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:34,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 21:59:34,380 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:59:34,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:34,381 INFO L85 PathProgramCache]: Analyzing trace with hash -858797603, now seen corresponding path program 1 times [2024-10-31 21:59:34,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:34,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941083361] [2024-10-31 21:59:34,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:34,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:34,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:34,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:34,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:34,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941083361] [2024-10-31 21:59:34,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941083361] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:34,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:34,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 21:59:34,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015107442] [2024-10-31 21:59:34,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:34,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 21:59:34,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:34,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:59:34,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:59:34,627 INFO L87 Difference]: Start difference. First operand 530 states and 791 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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) [2024-10-31 21:59:34,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:34,696 INFO L93 Difference]: Finished difference Result 1008 states and 1505 transitions. [2024-10-31 21:59:34,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 21:59:34,697 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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 42 [2024-10-31 21:59:34,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:34,700 INFO L225 Difference]: With dead ends: 1008 [2024-10-31 21:59:34,700 INFO L226 Difference]: Without dead ends: 532 [2024-10-31 21:59:34,706 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:59:34,707 INFO L432 NwaCegarLoop]: 787 mSDtfsCounter, 0 mSDsluCounter, 1564 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2351 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:34,711 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2351 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 21:59:34,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2024-10-31 21:59:34,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 532. [2024-10-31 21:59:34,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 531 states have (on average 1.4934086629001884) internal successors, (793), 531 states have internal predecessors, (793), 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) [2024-10-31 21:59:34,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 793 transitions. [2024-10-31 21:59:34,750 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 793 transitions. Word has length 42 [2024-10-31 21:59:34,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:34,751 INFO L471 AbstractCegarLoop]: Abstraction has 532 states and 793 transitions. [2024-10-31 21:59:34,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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) [2024-10-31 21:59:34,751 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 793 transitions. [2024-10-31 21:59:34,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-10-31 21:59:34,752 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:34,752 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:34,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 21:59:34,753 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:59:34,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:34,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1950887625, now seen corresponding path program 1 times [2024-10-31 21:59:34,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:34,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892185865] [2024-10-31 21:59:34,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:34,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:34,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:35,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:35,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:35,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892185865] [2024-10-31 21:59:35,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892185865] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:35,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:35,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 21:59:35,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121844429] [2024-10-31 21:59:35,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:35,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 21:59:35,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:35,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 21:59:35,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-31 21:59:35,236 INFO L87 Difference]: Start difference. First operand 532 states and 793 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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) [2024-10-31 21:59:35,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:35,367 INFO L93 Difference]: Finished difference Result 1014 states and 1512 transitions. [2024-10-31 21:59:35,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 21:59:35,368 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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 43 [2024-10-31 21:59:35,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:35,372 INFO L225 Difference]: With dead ends: 1014 [2024-10-31 21:59:35,373 INFO L226 Difference]: Without dead ends: 536 [2024-10-31 21:59:35,376 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-31 21:59:35,377 INFO L432 NwaCegarLoop]: 783 mSDtfsCounter, 760 mSDsluCounter, 1559 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 760 SdHoareTripleChecker+Valid, 2342 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:35,385 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [760 Valid, 2342 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 21:59:35,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2024-10-31 21:59:35,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 535. [2024-10-31 21:59:35,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 534 states have (on average 1.4906367041198503) internal successors, (796), 534 states have internal predecessors, (796), 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) [2024-10-31 21:59:35,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 796 transitions. [2024-10-31 21:59:35,407 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 796 transitions. Word has length 43 [2024-10-31 21:59:35,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:35,408 INFO L471 AbstractCegarLoop]: Abstraction has 535 states and 796 transitions. [2024-10-31 21:59:35,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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) [2024-10-31 21:59:35,409 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 796 transitions. [2024-10-31 21:59:35,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-10-31 21:59:35,411 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:35,412 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:35,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 21:59:35,413 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:59:35,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:35,414 INFO L85 PathProgramCache]: Analyzing trace with hash 1216571104, now seen corresponding path program 1 times [2024-10-31 21:59:35,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:35,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619700829] [2024-10-31 21:59:35,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:35,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:35,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:36,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:36,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:36,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619700829] [2024-10-31 21:59:36,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619700829] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:36,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:36,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-31 21:59:36,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374784517] [2024-10-31 21:59:36,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:36,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 21:59:36,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:36,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 21:59:36,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-31 21:59:36,510 INFO L87 Difference]: Start difference. First operand 535 states and 796 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 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) [2024-10-31 21:59:36,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:36,715 INFO L93 Difference]: Finished difference Result 1025 states and 1525 transitions. [2024-10-31 21:59:36,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 21:59:36,716 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 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 44 [2024-10-31 21:59:36,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:36,718 INFO L225 Difference]: With dead ends: 1025 [2024-10-31 21:59:36,718 INFO L226 Difference]: Without dead ends: 544 [2024-10-31 21:59:36,719 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-31 21:59:36,720 INFO L432 NwaCegarLoop]: 778 mSDtfsCounter, 771 mSDsluCounter, 2328 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 771 SdHoareTripleChecker+Valid, 3106 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:36,721 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [771 Valid, 3106 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 21:59:36,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2024-10-31 21:59:36,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 539. [2024-10-31 21:59:36,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 538 states have (on average 1.4888475836431228) internal successors, (801), 538 states have internal predecessors, (801), 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) [2024-10-31 21:59:36,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 801 transitions. [2024-10-31 21:59:36,738 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 801 transitions. Word has length 44 [2024-10-31 21:59:36,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:36,739 INFO L471 AbstractCegarLoop]: Abstraction has 539 states and 801 transitions. [2024-10-31 21:59:36,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 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) [2024-10-31 21:59:36,739 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 801 transitions. [2024-10-31 21:59:36,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-10-31 21:59:36,742 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:36,742 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:36,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 21:59:36,742 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:59:36,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:36,743 INFO L85 PathProgramCache]: Analyzing trace with hash 560912804, now seen corresponding path program 1 times [2024-10-31 21:59:36,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:36,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821236393] [2024-10-31 21:59:36,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:36,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:36,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:37,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:37,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:37,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821236393] [2024-10-31 21:59:37,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821236393] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:37,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:37,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-31 21:59:37,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854219697] [2024-10-31 21:59:37,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:37,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 21:59:37,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:37,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 21:59:37,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-31 21:59:37,362 INFO L87 Difference]: Start difference. First operand 539 states and 801 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 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) [2024-10-31 21:59:37,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:37,495 INFO L93 Difference]: Finished difference Result 1022 states and 1520 transitions. [2024-10-31 21:59:37,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 21:59:37,496 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 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 44 [2024-10-31 21:59:37,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:37,498 INFO L225 Difference]: With dead ends: 1022 [2024-10-31 21:59:37,498 INFO L226 Difference]: Without dead ends: 537 [2024-10-31 21:59:37,499 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-10-31 21:59:37,500 INFO L432 NwaCegarLoop]: 775 mSDtfsCounter, 751 mSDsluCounter, 3088 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 751 SdHoareTripleChecker+Valid, 3863 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:37,500 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [751 Valid, 3863 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 21:59:37,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2024-10-31 21:59:37,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 534. [2024-10-31 21:59:37,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 533 states have (on average 1.4896810506566605) internal successors, (794), 533 states have internal predecessors, (794), 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) [2024-10-31 21:59:37,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 794 transitions. [2024-10-31 21:59:37,516 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 794 transitions. Word has length 44 [2024-10-31 21:59:37,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:37,517 INFO L471 AbstractCegarLoop]: Abstraction has 534 states and 794 transitions. [2024-10-31 21:59:37,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 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) [2024-10-31 21:59:37,517 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 794 transitions. [2024-10-31 21:59:37,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-10-31 21:59:37,519 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:37,519 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:37,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 21:59:37,519 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:59:37,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:37,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1978279468, now seen corresponding path program 1 times [2024-10-31 21:59:37,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:37,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589960323] [2024-10-31 21:59:37,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:37,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:37,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:37,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:37,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:37,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589960323] [2024-10-31 21:59:37,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589960323] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:37,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:37,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 21:59:37,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197329015] [2024-10-31 21:59:37,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:37,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 21:59:37,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:37,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 21:59:37,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 21:59:37,772 INFO L87 Difference]: Start difference. First operand 534 states and 794 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 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) [2024-10-31 21:59:38,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:38,532 INFO L93 Difference]: Finished difference Result 1108 states and 1643 transitions. [2024-10-31 21:59:38,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 21:59:38,533 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 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 45 [2024-10-31 21:59:38,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:38,536 INFO L225 Difference]: With dead ends: 1108 [2024-10-31 21:59:38,536 INFO L226 Difference]: Without dead ends: 628 [2024-10-31 21:59:38,537 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-31 21:59:38,538 INFO L432 NwaCegarLoop]: 595 mSDtfsCounter, 1011 mSDsluCounter, 1187 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1011 SdHoareTripleChecker+Valid, 1782 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:38,538 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1011 Valid, 1782 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-31 21:59:38,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2024-10-31 21:59:38,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 542. [2024-10-31 21:59:38,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 542 states, 541 states have (on average 1.4861367837338262) internal successors, (804), 541 states have internal predecessors, (804), 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) [2024-10-31 21:59:38,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 804 transitions. [2024-10-31 21:59:38,553 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 804 transitions. Word has length 45 [2024-10-31 21:59:38,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:38,553 INFO L471 AbstractCegarLoop]: Abstraction has 542 states and 804 transitions. [2024-10-31 21:59:38,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 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) [2024-10-31 21:59:38,553 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 804 transitions. [2024-10-31 21:59:38,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-10-31 21:59:38,554 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:38,554 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:38,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 21:59:38,555 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:59:38,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:38,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1772973075, now seen corresponding path program 1 times [2024-10-31 21:59:38,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:38,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410695080] [2024-10-31 21:59:38,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:38,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:38,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:59:38,598 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:59:38,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:59:38,700 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:59:38,701 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 21:59:38,702 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-31 21:59:38,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 21:59:38,707 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:38,784 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-10-31 21:59:38,787 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.10 09:59:38 BoogieIcfgContainer [2024-10-31 21:59:38,788 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-31 21:59:38,788 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 21:59:38,788 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 21:59:38,789 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 21:59:38,789 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:59:33" (3/4) ... [2024-10-31 21:59:38,792 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-10-31 21:59:38,793 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 21:59:38,794 INFO L158 Benchmark]: Toolchain (without parser) took 10667.66ms. Allocated memory was 142.6MB in the beginning and 392.2MB in the end (delta: 249.6MB). Free memory was 102.7MB in the beginning and 100.3MB in the end (delta: 2.4MB). Peak memory consumption was 253.3MB. Max. memory is 16.1GB. [2024-10-31 21:59:38,795 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 142.6MB. Free memory is still 84.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 21:59:38,795 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1004.02ms. Allocated memory was 142.6MB in the beginning and 184.5MB in the end (delta: 41.9MB). Free memory was 102.3MB in the beginning and 139.2MB in the end (delta: -36.9MB). Peak memory consumption was 60.3MB. Max. memory is 16.1GB. [2024-10-31 21:59:38,797 INFO L158 Benchmark]: Boogie Procedure Inliner took 363.57ms. Allocated memory is still 184.5MB. Free memory was 139.2MB in the beginning and 90.9MB in the end (delta: 48.3MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2024-10-31 21:59:38,798 INFO L158 Benchmark]: Boogie Preprocessor took 383.52ms. Allocated memory is still 184.5MB. Free memory was 90.9MB in the beginning and 98.3MB in the end (delta: -7.4MB). Peak memory consumption was 32.9MB. Max. memory is 16.1GB. [2024-10-31 21:59:38,798 INFO L158 Benchmark]: RCFGBuilder took 3133.20ms. Allocated memory was 184.5MB in the beginning and 316.7MB in the end (delta: 132.1MB). Free memory was 98.3MB in the beginning and 218.4MB in the end (delta: -120.1MB). Peak memory consumption was 105.9MB. Max. memory is 16.1GB. [2024-10-31 21:59:38,799 INFO L158 Benchmark]: TraceAbstraction took 5765.81ms. Allocated memory was 316.7MB in the beginning and 392.2MB in the end (delta: 75.5MB). Free memory was 218.4MB in the beginning and 100.3MB in the end (delta: 118.1MB). Peak memory consumption was 194.7MB. Max. memory is 16.1GB. [2024-10-31 21:59:38,799 INFO L158 Benchmark]: Witness Printer took 5.32ms. Allocated memory is still 392.2MB. Free memory is still 100.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 21:59:38,801 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 142.6MB. Free memory is still 84.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1004.02ms. Allocated memory was 142.6MB in the beginning and 184.5MB in the end (delta: 41.9MB). Free memory was 102.3MB in the beginning and 139.2MB in the end (delta: -36.9MB). Peak memory consumption was 60.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 363.57ms. Allocated memory is still 184.5MB. Free memory was 139.2MB in the beginning and 90.9MB in the end (delta: 48.3MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 383.52ms. Allocated memory is still 184.5MB. Free memory was 90.9MB in the beginning and 98.3MB in the end (delta: -7.4MB). Peak memory consumption was 32.9MB. Max. memory is 16.1GB. * RCFGBuilder took 3133.20ms. Allocated memory was 184.5MB in the beginning and 316.7MB in the end (delta: 132.1MB). Free memory was 98.3MB in the beginning and 218.4MB in the end (delta: -120.1MB). Peak memory consumption was 105.9MB. Max. memory is 16.1GB. * TraceAbstraction took 5765.81ms. Allocated memory was 316.7MB in the beginning and 392.2MB in the end (delta: 75.5MB). Free memory was 218.4MB in the beginning and 100.3MB in the end (delta: 118.1MB). Peak memory consumption was 194.7MB. Max. memory is 16.1GB. * Witness Printer took 5.32ms. Allocated memory is still 392.2MB. Free memory is still 100.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 21]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 165. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L29] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 5); [L30] const SORT_3 msb_SORT_3 = (SORT_3)1 << (5 - 1); [L32] const SORT_5 mask_SORT_5 = (SORT_5)-1 >> (sizeof(SORT_5) * 8 - 12); [L33] const SORT_5 msb_SORT_5 = (SORT_5)1 << (12 - 1); [L35] const SORT_45 mask_SORT_45 = (SORT_45)-1 >> (sizeof(SORT_45) * 8 - 3); [L36] const SORT_45 msb_SORT_45 = (SORT_45)1 << (3 - 1); [L38] const SORT_86 mask_SORT_86 = (SORT_86)-1 >> (sizeof(SORT_86) * 8 - 4); [L39] const SORT_86 msb_SORT_86 = (SORT_86)1 << (4 - 1); [L41] const SORT_143 mask_SORT_143 = (SORT_143)-1 >> (sizeof(SORT_143) * 8 - 32); [L42] const SORT_143 msb_SORT_143 = (SORT_143)1 << (32 - 1); [L44] const SORT_167 mask_SORT_167 = (SORT_167)-1 >> (sizeof(SORT_167) * 8 - 2); [L45] const SORT_167 msb_SORT_167 = (SORT_167)1 << (2 - 1); [L47] const SORT_3 var_7 = 0; [L48] const SORT_1 var_11 = 0; [L49] const SORT_1 var_20 = 1; [L50] const SORT_5 var_32 = 0; [L51] const SORT_45 var_46 = 0; [L52] const SORT_45 var_50 = 2; [L53] const SORT_45 var_54 = 1; [L54] const SORT_45 var_59 = 4; [L55] const SORT_45 var_61 = 5; [L56] const SORT_45 var_65 = 3; [L57] const SORT_3 var_73 = 2; [L58] const SORT_45 var_103 = 7; [L59] const SORT_45 var_108 = 6; [L60] const SORT_143 var_145 = 0; [L61] const SORT_3 var_176 = 31; [L63] SORT_1 input_2; [L64] SORT_3 input_4; [L65] SORT_5 input_6; [L66] SORT_3 input_164; [L67] SORT_3 input_165; [L68] SORT_3 input_166; [L69] SORT_3 input_175; [L70] SORT_3 input_185; [L71] SORT_3 input_186; [L72] SORT_3 input_187; [L73] SORT_3 input_190; [L74] SORT_3 input_209; [L75] SORT_3 input_210; [L76] SORT_3 input_211; [L77] SORT_3 input_214; [L78] SORT_3 input_216; [L79] SORT_167 input_230; [L80] SORT_167 input_231; [L81] SORT_167 input_232; [L83] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 VAL [mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_5=4095, mask_SORT_86=15, var_103=7, var_108=6, var_11=0, var_145=0, var_176=31, var_20=1, var_32=0, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L83] SORT_3 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L84] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 VAL [mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_5=4095, mask_SORT_86=15, var_103=7, var_108=6, var_11=0, var_145=0, var_176=31, var_20=1, var_32=0, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L84] SORT_3 state_13 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L85] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 VAL [mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_5=4095, mask_SORT_86=15, var_103=7, var_108=6, var_11=0, var_145=0, var_176=31, var_20=1, var_32=0, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L85] SORT_3 state_24 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L86] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 VAL [mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_5=4095, mask_SORT_86=15, var_103=7, var_108=6, var_11=0, var_145=0, var_176=31, var_20=1, var_32=0, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L86] SORT_3 state_26 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L87] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 VAL [mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_5=4095, mask_SORT_86=15, var_103=7, var_108=6, var_11=0, var_145=0, var_176=31, var_20=1, var_32=0, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L87] SORT_3 state_28 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L88] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_5=4095, mask_SORT_86=15, var_103=7, var_108=6, var_11=0, var_145=0, var_176=31, var_20=1, var_32=0, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L88] SORT_1 state_30 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L89] EXPR __VERIFIER_nondet_ushort() & mask_SORT_5 VAL [mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_86=15, var_103=7, var_108=6, var_11=0, var_145=0, var_176=31, var_20=1, var_32=0, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L89] SORT_5 state_33 = __VERIFIER_nondet_ushort() & mask_SORT_5; [L90] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 VAL [mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_86=15, var_103=7, var_108=6, var_11=0, var_145=0, var_176=31, var_20=1, var_32=0, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L90] SORT_3 state_35 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L91] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 VAL [mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_86=15, var_103=7, var_108=6, var_11=0, var_145=0, var_176=31, var_20=1, var_32=0, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L91] SORT_3 state_37 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L92] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 VAL [mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_86=15, var_103=7, var_108=6, var_11=0, var_145=0, var_176=31, var_20=1, var_32=0, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L92] SORT_3 state_39 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L93] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 VAL [mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_86=15, var_103=7, var_108=6, var_11=0, var_145=0, var_176=31, var_20=1, var_32=0, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L93] SORT_3 state_41 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L94] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 VAL [mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_86=15, var_103=7, var_108=6, var_11=0, var_145=0, var_176=31, var_20=1, var_32=0, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L94] SORT_3 state_43 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L95] EXPR __VERIFIER_nondet_uchar() & mask_SORT_45 VAL [mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_86=15, var_103=7, var_108=6, var_11=0, var_145=0, var_176=31, var_20=1, var_32=0, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L95] SORT_45 state_47 = __VERIFIER_nondet_uchar() & mask_SORT_45; [L97] SORT_3 init_9_arg_1 = var_7; [L98] state_8 = init_9_arg_1 [L99] SORT_3 init_14_arg_1 = var_7; [L100] state_13 = init_14_arg_1 [L101] SORT_3 init_25_arg_1 = var_7; [L102] state_24 = init_25_arg_1 [L103] SORT_3 init_27_arg_1 = var_7; [L104] state_26 = init_27_arg_1 [L105] SORT_3 init_29_arg_1 = var_7; [L106] state_28 = init_29_arg_1 [L107] SORT_1 init_31_arg_1 = var_11; [L108] state_30 = init_31_arg_1 [L109] SORT_5 init_34_arg_1 = var_32; [L110] state_33 = init_34_arg_1 [L111] SORT_3 init_36_arg_1 = var_7; [L112] state_35 = init_36_arg_1 [L113] SORT_3 init_38_arg_1 = var_7; [L114] state_37 = init_38_arg_1 [L115] SORT_3 init_40_arg_1 = var_7; [L116] state_39 = init_40_arg_1 [L117] SORT_3 init_42_arg_1 = var_7; [L118] state_41 = init_42_arg_1 [L119] SORT_3 init_44_arg_1 = var_7; [L120] state_43 = init_44_arg_1 [L121] SORT_45 init_48_arg_1 = var_46; [L122] state_47 = init_48_arg_1 VAL [mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_86=15, state_13=0, state_24=0, state_26=0, state_28=0, state_30=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_47=0, state_8=0, var_103=7, var_108=6, var_11=0, var_145=0, var_176=31, var_20=1, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L125] input_2 = __VERIFIER_nondet_uchar() [L126] input_4 = __VERIFIER_nondet_uchar() [L127] input_6 = __VERIFIER_nondet_ushort() [L128] input_164 = __VERIFIER_nondet_uchar() [L129] input_165 = __VERIFIER_nondet_uchar() [L130] input_166 = __VERIFIER_nondet_uchar() [L131] input_175 = __VERIFIER_nondet_uchar() [L132] input_185 = __VERIFIER_nondet_uchar() [L133] input_186 = __VERIFIER_nondet_uchar() [L134] input_187 = __VERIFIER_nondet_uchar() [L135] input_190 = __VERIFIER_nondet_uchar() [L136] input_209 = __VERIFIER_nondet_uchar() [L137] input_210 = __VERIFIER_nondet_uchar() [L138] input_211 = __VERIFIER_nondet_uchar() [L139] input_214 = __VERIFIER_nondet_uchar() [L140] input_216 = __VERIFIER_nondet_uchar() [L141] input_230 = __VERIFIER_nondet_uchar() [L142] input_231 = __VERIFIER_nondet_uchar() [L143] input_232 = __VERIFIER_nondet_uchar() [L146] SORT_3 var_10_arg_0 = state_8; [L147] SORT_1 var_10 = var_10_arg_0 >> 0; VAL [mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_86=15, state_13=0, state_24=0, state_26=0, state_28=0, state_30=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_47=0, state_8=0, var_103=7, var_108=6, var_10=0, var_11=0, var_145=0, var_176=31, var_20=1, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L148] EXPR var_10 & mask_SORT_1 VAL [mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_86=15, state_13=0, state_24=0, state_26=0, state_28=0, state_30=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_47=0, state_8=0, var_103=7, var_108=6, var_11=0, var_145=0, var_176=31, var_20=1, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L148] var_10 = var_10 & mask_SORT_1 [L149] SORT_1 var_12_arg_0 = var_10; [L150] SORT_1 var_12_arg_1 = var_11; [L151] SORT_1 var_12 = var_12_arg_0 == var_12_arg_1; [L152] SORT_3 var_15_arg_0 = state_13; [L153] SORT_1 var_15 = var_15_arg_0 >> 0; VAL [mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_86=15, state_13=0, state_24=0, state_26=0, state_28=0, state_30=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_47=0, state_8=0, var_103=7, var_108=6, var_11=0, var_12=1, var_145=0, var_15=0, var_176=31, var_20=1, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L154] EXPR var_15 & mask_SORT_1 VAL [mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_86=15, state_13=0, state_24=0, state_26=0, state_28=0, state_30=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_47=0, state_8=0, var_103=7, var_108=6, var_11=0, var_12=1, var_145=0, var_176=31, var_20=1, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L154] var_15 = var_15 & mask_SORT_1 [L155] SORT_1 var_16_arg_0 = var_15; [L156] SORT_1 var_16_arg_1 = var_11; [L157] SORT_1 var_16 = var_16_arg_0 == var_16_arg_1; [L158] SORT_1 var_17_arg_0 = var_12; [L159] SORT_1 var_17_arg_1 = var_16; VAL [mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_86=15, state_13=0, state_24=0, state_26=0, state_28=0, state_30=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_47=0, state_8=0, var_103=7, var_108=6, var_11=0, var_145=0, var_176=31, var_17_arg_0=1, var_17_arg_1=1, var_20=1, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L160] EXPR var_17_arg_0 & var_17_arg_1 VAL [mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_86=15, state_13=0, state_24=0, state_26=0, state_28=0, state_30=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_47=0, state_8=0, var_103=7, var_108=6, var_11=0, var_145=0, var_176=31, var_20=1, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L160] SORT_1 var_17 = var_17_arg_0 & var_17_arg_1; [L161] SORT_1 var_21_arg_0 = var_17; [L162] SORT_1 var_21 = ~var_21_arg_0; [L163] SORT_1 var_22_arg_0 = var_20; [L164] SORT_1 var_22_arg_1 = var_21; VAL [mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_86=15, state_13=0, state_24=0, state_26=0, state_28=0, state_30=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_47=0, state_8=0, var_103=7, var_108=6, var_11=0, var_145=0, var_176=31, var_20=1, var_22_arg_0=1, var_22_arg_1=-2, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L165] EXPR var_22_arg_0 & var_22_arg_1 VAL [mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_86=15, state_13=0, state_24=0, state_26=0, state_28=0, state_30=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_47=0, state_8=0, var_103=7, var_108=6, var_11=0, var_145=0, var_176=31, var_20=1, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L165] SORT_1 var_22 = var_22_arg_0 & var_22_arg_1; [L166] EXPR var_22 & mask_SORT_1 VAL [mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_86=15, state_13=0, state_24=0, state_26=0, state_28=0, state_30=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_47=0, state_8=0, var_103=7, var_108=6, var_11=0, var_145=0, var_176=31, var_20=1, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L166] var_22 = var_22 & mask_SORT_1 [L167] SORT_1 bad_23_arg_0 = var_22; [L168] CALL __VERIFIER_assert(!(bad_23_arg_0)) [L21] COND TRUE !(cond) [L21] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 531 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.6s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3293 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3293 mSDsluCounter, 15799 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11294 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 743 IncrementalHoareTripleChecker+Invalid, 748 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 4505 mSDtfsCounter, 743 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=542occurred in iteration=6, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 95 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 304 NumberOfCodeBlocks, 304 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 253 ConstructedInterpolants, 0 QuantifiedInterpolants, 754 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 [2024-10-31 21:59:38,836 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fb8e89-efea-4823-8fbd-034e35353c8b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fb8e89-efea-4823-8fbd-034e35353c8b/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fb8e89-efea-4823-8fbd-034e35353c8b/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fb8e89-efea-4823-8fbd-034e35353c8b/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fb8e89-efea-4823-8fbd-034e35353c8b/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p02.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fb8e89-efea-4823-8fbd-034e35353c8b/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fb8e89-efea-4823-8fbd-034e35353c8b/bin/uautomizer-verify-4GaUIPS5ZU --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c9237163e2805f66062dc578af6664f7122718fcb3464bd31fd071298f5647b0 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 21:59:41,804 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 21:59:41,879 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fb8e89-efea-4823-8fbd-034e35353c8b/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-10-31 21:59:41,886 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 21:59:41,887 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 21:59:41,920 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 21:59:41,921 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 21:59:41,922 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 21:59:41,922 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 21:59:41,923 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 21:59:41,923 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 21:59:41,924 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 21:59:41,925 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 21:59:41,926 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 21:59:41,926 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 21:59:41,927 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 21:59:41,927 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 21:59:41,928 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 21:59:41,928 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 21:59:41,929 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 21:59:41,929 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 21:59:41,934 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-31 21:59:41,938 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-31 21:59:41,939 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 21:59:41,939 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-31 21:59:41,940 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 21:59:41,940 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 21:59:41,940 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 21:59:41,941 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 21:59:41,941 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 21:59:41,942 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 21:59:41,942 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:59:41,942 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 21:59:41,943 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 21:59:41,943 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 21:59:41,944 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-31 21:59:41,944 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-31 21:59:41,949 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 21:59:41,949 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 21:59:41,950 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 21:59:41,950 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 21:59:41,954 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-31 21:59:41,954 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_80fb8e89-efea-4823-8fbd-034e35353c8b/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fb8e89-efea-4823-8fbd-034e35353c8b/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c9237163e2805f66062dc578af6664f7122718fcb3464bd31fd071298f5647b0 [2024-10-31 21:59:42,435 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 21:59:42,467 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 21:59:42,470 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 21:59:42,471 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 21:59:42,472 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 21:59:42,473 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fb8e89-efea-4823-8fbd-034e35353c8b/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p02.c Unable to find full path for "g++" [2024-10-31 21:59:44,493 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 21:59:44,851 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 21:59:44,851 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fb8e89-efea-4823-8fbd-034e35353c8b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p02.c [2024-10-31 21:59:44,868 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fb8e89-efea-4823-8fbd-034e35353c8b/bin/uautomizer-verify-4GaUIPS5ZU/data/f1f77d5d1/a202696164cc4afa84d16e585f53fcbf/FLAG247ae7b8e [2024-10-31 21:59:44,885 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fb8e89-efea-4823-8fbd-034e35353c8b/bin/uautomizer-verify-4GaUIPS5ZU/data/f1f77d5d1/a202696164cc4afa84d16e585f53fcbf [2024-10-31 21:59:44,892 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 21:59:44,893 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 21:59:44,895 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 21:59:44,895 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 21:59:44,902 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 21:59:44,903 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:59:44" (1/1) ... [2024-10-31 21:59:44,904 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f5b93cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:44, skipping insertion in model container [2024-10-31 21:59:44,904 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:59:44" (1/1) ... [2024-10-31 21:59:44,988 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 21:59:45,267 WARN L251 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_80fb8e89-efea-4823-8fbd-034e35353c8b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p02.c[1259,1272] [2024-10-31 21:59:45,667 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:59:45,688 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 21:59:45,708 WARN L251 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_80fb8e89-efea-4823-8fbd-034e35353c8b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p02.c[1259,1272] [2024-10-31 21:59:45,860 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:59:45,884 INFO L204 MainTranslator]: Completed translation [2024-10-31 21:59:45,884 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:45 WrapperNode [2024-10-31 21:59:45,884 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 21:59:45,885 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 21:59:45,885 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 21:59:45,885 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 21:59:45,907 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:45" (1/1) ... [2024-10-31 21:59:45,951 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:45" (1/1) ... [2024-10-31 21:59:46,048 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1072 [2024-10-31 21:59:46,049 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 21:59:46,050 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 21:59:46,050 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 21:59:46,050 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 21:59:46,067 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:45" (1/1) ... [2024-10-31 21:59:46,067 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:45" (1/1) ... [2024-10-31 21:59:46,087 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:45" (1/1) ... [2024-10-31 21:59:46,131 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-31 21:59:46,131 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:45" (1/1) ... [2024-10-31 21:59:46,132 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:45" (1/1) ... [2024-10-31 21:59:46,177 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:45" (1/1) ... [2024-10-31 21:59:46,186 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:45" (1/1) ... [2024-10-31 21:59:46,194 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:45" (1/1) ... [2024-10-31 21:59:46,202 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:45" (1/1) ... [2024-10-31 21:59:46,222 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 21:59:46,223 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 21:59:46,223 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 21:59:46,223 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 21:59:46,224 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:45" (1/1) ... [2024-10-31 21:59:46,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:59:46,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fb8e89-efea-4823-8fbd-034e35353c8b/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:46,263 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fb8e89-efea-4823-8fbd-034e35353c8b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 21:59:46,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fb8e89-efea-4823-8fbd-034e35353c8b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 21:59:46,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 21:59:46,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-31 21:59:46,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 21:59:46,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 21:59:46,629 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 21:59:46,632 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 21:59:48,702 INFO L? ?]: Removed 65 outVars from TransFormulas that were not future-live. [2024-10-31 21:59:48,704 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 21:59:48,717 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 21:59:48,717 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-31 21:59:48,718 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:59:48 BoogieIcfgContainer [2024-10-31 21:59:48,718 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 21:59:48,723 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 21:59:48,723 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 21:59:48,729 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 21:59:48,729 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 09:59:44" (1/3) ... [2024-10-31 21:59:48,730 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65bf30fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:59:48, skipping insertion in model container [2024-10-31 21:59:48,731 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:45" (2/3) ... [2024-10-31 21:59:48,731 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65bf30fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:59:48, skipping insertion in model container [2024-10-31 21:59:48,732 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:59:48" (3/3) ... [2024-10-31 21:59:48,734 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_vsaR_p02.c [2024-10-31 21:59:48,757 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 21:59:48,758 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-31 21:59:48,838 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 21:59:48,845 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, 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;@1353666a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 21:59:48,847 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-31 21:59:48,852 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 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) [2024-10-31 21:59:48,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-10-31 21:59:48,860 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:48,861 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-10-31 21:59:48,862 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:59:48,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:48,869 INFO L85 PathProgramCache]: Analyzing trace with hash 28694789, now seen corresponding path program 1 times [2024-10-31 21:59:48,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 21:59:48,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1578197862] [2024-10-31 21:59:48,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:48,887 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 [2024-10-31 21:59:48,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fb8e89-efea-4823-8fbd-034e35353c8b/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 21:59:48,891 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fb8e89-efea-4823-8fbd-034e35353c8b/bin/uautomizer-verify-4GaUIPS5ZU/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) [2024-10-31 21:59:48,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fb8e89-efea-4823-8fbd-034e35353c8b/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 21:59:49,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:49,329 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-10-31 21:59:49,344 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:59:49,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:49,607 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 21:59:49,608 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-31 21:59:49,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1578197862] [2024-10-31 21:59:49,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1578197862] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:49,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:49,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 21:59:49,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587910963] [2024-10-31 21:59:49,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:49,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 21:59:49,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-31 21:59:49,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:59:49,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:59:49,651 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 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) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2024-10-31 21:59:49,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:49,758 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2024-10-31 21:59:49,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 21:59:49,761 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 5 [2024-10-31 21:59:49,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:49,769 INFO L225 Difference]: With dead ends: 18 [2024-10-31 21:59:49,770 INFO L226 Difference]: Without dead ends: 10 [2024-10-31 21:59:49,772 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 21:59:49,776 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:49,777 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 11 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 21:59:49,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2024-10-31 21:59:49,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2024-10-31 21:59:49,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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) [2024-10-31 21:59:49,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-10-31 21:59:49,814 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2024-10-31 21:59:49,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:49,814 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-10-31 21:59:49,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2024-10-31 21:59:49,815 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-10-31 21:59:49,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-31 21:59:49,815 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:49,816 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:49,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fb8e89-efea-4823-8fbd-034e35353c8b/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 21:59:50,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fb8e89-efea-4823-8fbd-034e35353c8b/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 21:59:50,019 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:59:50,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:50,020 INFO L85 PathProgramCache]: Analyzing trace with hash 152739811, now seen corresponding path program 1 times [2024-10-31 21:59:50,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 21:59:50,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [979774046] [2024-10-31 21:59:50,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:50,022 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 [2024-10-31 21:59:50,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fb8e89-efea-4823-8fbd-034e35353c8b/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 21:59:50,025 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fb8e89-efea-4823-8fbd-034e35353c8b/bin/uautomizer-verify-4GaUIPS5ZU/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) [2024-10-31 21:59:50,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fb8e89-efea-4823-8fbd-034e35353c8b/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 21:59:50,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:50,556 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-10-31 21:59:50,567 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:59:51,015 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:51,017 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 21:59:54,076 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:54,077 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-31 21:59:54,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [979774046] [2024-10-31 21:59:54,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [979774046] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 21:59:54,077 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-31 21:59:54,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-10-31 21:59:54,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467410899] [2024-10-31 21:59:54,078 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-31 21:59:54,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-31 21:59:54,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-31 21:59:54,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-31 21:59:54,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-31 21:59:54,081 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 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) [2024-10-31 21:59:54,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:54,396 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2024-10-31 21:59:54,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 21:59:54,396 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 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 8 [2024-10-31 21:59:54,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:54,397 INFO L225 Difference]: With dead ends: 15 [2024-10-31 21:59:54,397 INFO L226 Difference]: Without dead ends: 13 [2024-10-31 21:59:54,397 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-10-31 21:59:54,400 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 6 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:54,400 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 17 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 21:59:54,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2024-10-31 21:59:54,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2024-10-31 21:59:54,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 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) [2024-10-31 21:59:54,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2024-10-31 21:59:54,408 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2024-10-31 21:59:54,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:54,408 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2024-10-31 21:59:54,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 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) [2024-10-31 21:59:54,409 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2024-10-31 21:59:54,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-10-31 21:59:54,410 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:54,411 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2024-10-31 21:59:54,416 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fb8e89-efea-4823-8fbd-034e35353c8b/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-10-31 21:59:54,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fb8e89-efea-4823-8fbd-034e35353c8b/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 21:59:54,615 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:59:54,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:54,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1906115653, now seen corresponding path program 2 times [2024-10-31 21:59:54,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 21:59:54,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [610111772] [2024-10-31 21:59:54,618 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 21:59:54,618 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 [2024-10-31 21:59:54,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fb8e89-efea-4823-8fbd-034e35353c8b/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 21:59:54,621 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fb8e89-efea-4823-8fbd-034e35353c8b/bin/uautomizer-verify-4GaUIPS5ZU/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) [2024-10-31 21:59:54,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80fb8e89-efea-4823-8fbd-034e35353c8b/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process