./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_CRC.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52167649-6559-40bb-ade7-909178e699dc/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52167649-6559-40bb-ade7-909178e699dc/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52167649-6559-40bb-ade7-909178e699dc/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52167649-6559-40bb-ade7-909178e699dc/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_CRC.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52167649-6559-40bb-ade7-909178e699dc/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52167649-6559-40bb-ade7-909178e699dc/bin/uautomizer-verify-VRDe98Ueme --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 217c4f5eefa3b0856788b7ca9679c9bd3ae2e76dd46c0382e56b3111181a98a9 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:02:15,236 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:02:15,359 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52167649-6559-40bb-ade7-909178e699dc/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-26 12:02:15,370 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:02:15,371 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:02:15,411 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:02:15,412 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:02:15,413 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:02:15,414 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 12:02:15,419 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 12:02:15,420 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 12:02:15,421 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 12:02:15,422 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:02:15,423 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:02:15,424 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:02:15,424 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:02:15,425 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 12:02:15,425 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 12:02:15,426 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:02:15,426 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 12:02:15,427 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 12:02:15,427 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 12:02:15,428 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:02:15,428 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:02:15,429 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:02:15,430 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:02:15,430 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 12:02:15,431 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 12:02:15,431 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:02:15,431 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:02:15,433 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 12:02:15,433 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 12:02:15,433 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 12:02:15,434 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 12:02:15,434 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 12:02:15,434 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 12:02:15,434 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 12:02:15,435 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 12:02:15,435 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 12:02:15,435 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_52167649-6559-40bb-ade7-909178e699dc/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52167649-6559-40bb-ade7-909178e699dc/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 217c4f5eefa3b0856788b7ca9679c9bd3ae2e76dd46c0382e56b3111181a98a9 [2023-11-26 12:02:15,811 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:02:15,845 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:02:15,847 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:02:15,849 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:02:15,850 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:02:15,851 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52167649-6559-40bb-ade7-909178e699dc/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_CRC.c [2023-11-26 12:02:18,909 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:02:19,281 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:02:19,301 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52167649-6559-40bb-ade7-909178e699dc/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_CRC.c [2023-11-26 12:02:19,324 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52167649-6559-40bb-ade7-909178e699dc/bin/uautomizer-verify-VRDe98Ueme/data/b80b08d24/a2b5b90a22a44e2fbe62846d3ebf203b/FLAGa3ff90ce6 [2023-11-26 12:02:19,343 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52167649-6559-40bb-ade7-909178e699dc/bin/uautomizer-verify-VRDe98Ueme/data/b80b08d24/a2b5b90a22a44e2fbe62846d3ebf203b [2023-11-26 12:02:19,346 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:02:19,348 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:02:19,349 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:02:19,350 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:02:19,356 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:02:19,357 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:02:19" (1/1) ... [2023-11-26 12:02:19,359 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ae53cb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:19, skipping insertion in model container [2023-11-26 12:02:19,359 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:02:19" (1/1) ... [2023-11-26 12:02:19,415 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:02:19,666 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52167649-6559-40bb-ade7-909178e699dc/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_CRC.c[1245,1258] [2023-11-26 12:02:20,038 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:02:20,051 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:02:20,064 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52167649-6559-40bb-ade7-909178e699dc/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_CRC.c[1245,1258] [2023-11-26 12:02:20,294 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:02:20,319 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:02:20,319 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:20 WrapperNode [2023-11-26 12:02:20,320 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:02:20,321 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:02:20,321 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:02:20,322 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:02:20,331 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:20" (1/1) ... [2023-11-26 12:02:20,399 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:20" (1/1) ... [2023-11-26 12:02:20,663 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2809 [2023-11-26 12:02:20,663 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:02:20,664 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:02:20,664 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:02:20,665 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:02:20,678 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:20" (1/1) ... [2023-11-26 12:02:20,679 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:20" (1/1) ... [2023-11-26 12:02:20,813 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:20" (1/1) ... [2023-11-26 12:02:20,977 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2023-11-26 12:02:20,979 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:20" (1/1) ... [2023-11-26 12:02:20,979 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:20" (1/1) ... [2023-11-26 12:02:21,082 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:20" (1/1) ... [2023-11-26 12:02:21,115 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:20" (1/1) ... [2023-11-26 12:02:21,161 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:20" (1/1) ... [2023-11-26 12:02:21,177 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:20" (1/1) ... [2023-11-26 12:02:21,234 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:02:21,236 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:02:21,236 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:02:21,236 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:02:21,237 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:20" (1/1) ... [2023-11-26 12:02:21,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:02:21,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52167649-6559-40bb-ade7-909178e699dc/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:02:21,280 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52167649-6559-40bb-ade7-909178e699dc/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 12:02:21,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52167649-6559-40bb-ade7-909178e699dc/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 12:02:21,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:02:21,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 12:02:21,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-26 12:02:21,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:02:21,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:02:21,608 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:02:21,610 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:02:24,160 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:02:24,256 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:02:24,256 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 12:02:24,257 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:02:24 BoogieIcfgContainer [2023-11-26 12:02:24,259 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:02:24,262 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 12:02:24,262 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 12:02:24,265 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 12:02:24,266 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:02:19" (1/3) ... [2023-11-26 12:02:24,267 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@558b548c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:02:24, skipping insertion in model container [2023-11-26 12:02:24,267 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:20" (2/3) ... [2023-11-26 12:02:24,269 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@558b548c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:02:24, skipping insertion in model container [2023-11-26 12:02:24,269 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:02:24" (3/3) ... [2023-11-26 12:02:24,271 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_CRC.c [2023-11-26 12:02:24,292 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 12:02:24,293 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 12:02:24,379 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 12:02:24,384 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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;@6a6ff51f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 12:02:24,384 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 12:02:24,392 INFO L276 IsEmpty]: Start isEmpty. Operand has 652 states, 650 states have (on average 1.7215384615384615) internal successors, (1119), 651 states have internal predecessors, (1119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:24,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-26 12:02:24,400 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:02:24,400 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:24,401 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:02:24,405 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:24,406 INFO L85 PathProgramCache]: Analyzing trace with hash 351779094, now seen corresponding path program 1 times [2023-11-26 12:02:24,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:24,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149071180] [2023-11-26 12:02:24,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:24,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:24,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:25,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:02:25,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:02:25,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149071180] [2023-11-26 12:02:25,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149071180] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:02:25,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:02:25,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:02:25,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918407452] [2023-11-26 12:02:25,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:02:25,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:02:25,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:02:25,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:02:25,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:02:25,504 INFO L87 Difference]: Start difference. First operand has 652 states, 650 states have (on average 1.7215384615384615) internal successors, (1119), 651 states have internal predecessors, (1119), 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 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:25,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:02:25,697 INFO L93 Difference]: Finished difference Result 1314 states and 2259 transitions. [2023-11-26 12:02:25,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:02:25,702 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 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 20 [2023-11-26 12:02:25,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:02:25,722 INFO L225 Difference]: With dead ends: 1314 [2023-11-26 12:02:25,722 INFO L226 Difference]: Without dead ends: 666 [2023-11-26 12:02:25,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:02:25,733 INFO L413 NwaCegarLoop]: 1134 mSDtfsCounter, 2206 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2206 SdHoareTripleChecker+Valid, 1164 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:02:25,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2206 Valid, 1164 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:02:25,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2023-11-26 12:02:25,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 650. [2023-11-26 12:02:25,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 649 states have (on average 1.7149460708782742) internal successors, (1113), 649 states have internal predecessors, (1113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:25,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 1113 transitions. [2023-11-26 12:02:25,829 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 1113 transitions. Word has length 20 [2023-11-26 12:02:25,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:02:25,829 INFO L495 AbstractCegarLoop]: Abstraction has 650 states and 1113 transitions. [2023-11-26 12:02:25,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:25,830 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 1113 transitions. [2023-11-26 12:02:25,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-26 12:02:25,831 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:02:25,831 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:25,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 12:02:25,832 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:02:25,832 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:25,833 INFO L85 PathProgramCache]: Analyzing trace with hash -265042430, now seen corresponding path program 1 times [2023-11-26 12:02:25,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:25,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184278213] [2023-11-26 12:02:25,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:25,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:25,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:26,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:02:26,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:02:26,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184278213] [2023-11-26 12:02:26,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184278213] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:02:26,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:02:26,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 12:02:26,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268101852] [2023-11-26 12:02:26,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:02:26,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:02:26,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:02:26,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:02:26,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:02:26,085 INFO L87 Difference]: Start difference. First operand 650 states and 1113 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:26,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:02:26,153 INFO L93 Difference]: Finished difference Result 654 states and 1117 transitions. [2023-11-26 12:02:26,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:02:26,154 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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 21 [2023-11-26 12:02:26,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:02:26,161 INFO L225 Difference]: With dead ends: 654 [2023-11-26 12:02:26,161 INFO L226 Difference]: Without dead ends: 652 [2023-11-26 12:02:26,162 INFO L412 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 [2023-11-26 12:02:26,163 INFO L413 NwaCegarLoop]: 1110 mSDtfsCounter, 1 mSDsluCounter, 2215 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 3325 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:02:26,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 3325 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:02:26,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states. [2023-11-26 12:02:26,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 652. [2023-11-26 12:02:26,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 652 states, 651 states have (on average 1.7127496159754225) internal successors, (1115), 651 states have internal predecessors, (1115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:26,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 1115 transitions. [2023-11-26 12:02:26,204 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 1115 transitions. Word has length 21 [2023-11-26 12:02:26,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:02:26,204 INFO L495 AbstractCegarLoop]: Abstraction has 652 states and 1115 transitions. [2023-11-26 12:02:26,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:26,205 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 1115 transitions. [2023-11-26 12:02:26,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-26 12:02:26,206 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:02:26,206 INFO L195 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] [2023-11-26 12:02:26,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 12:02:26,207 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:02:26,207 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:26,208 INFO L85 PathProgramCache]: Analyzing trace with hash 375344306, now seen corresponding path program 1 times [2023-11-26 12:02:26,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:26,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723238] [2023-11-26 12:02:26,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:26,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:26,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:02:26,254 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:02:26,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:02:26,408 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:02:26,409 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 12:02:26,416 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-26 12:02:26,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 12:02:26,423 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-26 12:02:26,427 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 12:02:26,491 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-26 12:02:26,493 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-26 12:02:26,507 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated [2023-11-26 12:02:26,512 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet10 could not be translated [2023-11-26 12:02:26,516 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet12 could not be translated [2023-11-26 12:02:26,525 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet14 could not be translated [2023-11-26 12:02:26,526 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet16 could not be translated [2023-11-26 12:02:26,532 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet17 could not be translated [2023-11-26 12:02:26,538 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet18 could not be translated [2023-11-26 12:02:26,540 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-26 12:02:26,565 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:02:26 BoogieIcfgContainer [2023-11-26 12:02:26,566 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 12:02:26,567 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 12:02:26,568 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 12:02:26,568 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 12:02:26,570 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:02:24" (3/4) ... [2023-11-26 12:02:26,574 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-26 12:02:26,576 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 12:02:26,578 INFO L158 Benchmark]: Toolchain (without parser) took 7229.75ms. Allocated memory was 132.1MB in the beginning and 331.4MB in the end (delta: 199.2MB). Free memory was 85.2MB in the beginning and 233.9MB in the end (delta: -148.6MB). Peak memory consumption was 52.6MB. Max. memory is 16.1GB. [2023-11-26 12:02:26,581 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 132.1MB. Free memory is still 104.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:02:26,582 INFO L158 Benchmark]: CACSL2BoogieTranslator took 970.78ms. Allocated memory was 132.1MB in the beginning and 169.9MB in the end (delta: 37.7MB). Free memory was 85.2MB in the beginning and 127.8MB in the end (delta: -42.6MB). Peak memory consumption was 36.1MB. Max. memory is 16.1GB. [2023-11-26 12:02:26,583 INFO L158 Benchmark]: Boogie Procedure Inliner took 342.49ms. Allocated memory is still 169.9MB. Free memory was 127.8MB in the beginning and 77.8MB in the end (delta: 50.0MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2023-11-26 12:02:26,583 INFO L158 Benchmark]: Boogie Preprocessor took 570.48ms. Allocated memory is still 169.9MB. Free memory was 77.8MB in the beginning and 92.9MB in the end (delta: -15.1MB). Peak memory consumption was 37.3MB. Max. memory is 16.1GB. [2023-11-26 12:02:26,584 INFO L158 Benchmark]: RCFGBuilder took 3023.39ms. Allocated memory was 169.9MB in the beginning and 274.7MB in the end (delta: 104.9MB). Free memory was 92.9MB in the beginning and 136.9MB in the end (delta: -44.0MB). Peak memory consumption was 80.5MB. Max. memory is 16.1GB. [2023-11-26 12:02:26,585 INFO L158 Benchmark]: TraceAbstraction took 2304.91ms. Allocated memory was 274.7MB in the beginning and 331.4MB in the end (delta: 56.6MB). Free memory was 136.9MB in the beginning and 233.9MB in the end (delta: -97.0MB). Peak memory consumption was 51.9MB. Max. memory is 16.1GB. [2023-11-26 12:02:26,585 INFO L158 Benchmark]: Witness Printer took 9.42ms. Allocated memory is still 331.4MB. Free memory is still 233.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:02:26,588 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 132.1MB. Free memory is still 104.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 970.78ms. Allocated memory was 132.1MB in the beginning and 169.9MB in the end (delta: 37.7MB). Free memory was 85.2MB in the beginning and 127.8MB in the end (delta: -42.6MB). Peak memory consumption was 36.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 342.49ms. Allocated memory is still 169.9MB. Free memory was 127.8MB in the beginning and 77.8MB in the end (delta: 50.0MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 570.48ms. Allocated memory is still 169.9MB. Free memory was 77.8MB in the beginning and 92.9MB in the end (delta: -15.1MB). Peak memory consumption was 37.3MB. Max. memory is 16.1GB. * RCFGBuilder took 3023.39ms. Allocated memory was 169.9MB in the beginning and 274.7MB in the end (delta: 104.9MB). Free memory was 92.9MB in the beginning and 136.9MB in the end (delta: -44.0MB). Peak memory consumption was 80.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2304.91ms. Allocated memory was 274.7MB in the beginning and 331.4MB in the end (delta: 56.6MB). Free memory was 136.9MB in the beginning and 233.9MB in the end (delta: -97.0MB). Peak memory consumption was 51.9MB. Max. memory is 16.1GB. * Witness Printer took 9.42ms. Allocated memory is still 331.4MB. Free memory is still 233.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet12 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet14 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet16 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet17 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet18 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 159. 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_5 mask_SORT_5 = (SORT_5)-1 >> (sizeof(SORT_5) * 8 - 8); [L30] const SORT_5 msb_SORT_5 = (SORT_5)1 << (8 - 1); [L32] const SORT_9 mask_SORT_9 = (SORT_9)-1 >> (sizeof(SORT_9) * 8 - 32); [L33] const SORT_9 msb_SORT_9 = (SORT_9)1 << (32 - 1); [L35] const SORT_161 mask_SORT_161 = (SORT_161)-1 >> (sizeof(SORT_161) * 8 - 2); [L36] const SORT_161 msb_SORT_161 = (SORT_161)1 << (2 - 1); [L38] const SORT_163 mask_SORT_163 = (SORT_163)-1 >> (sizeof(SORT_163) * 8 - 3); [L39] const SORT_163 msb_SORT_163 = (SORT_163)1 << (3 - 1); [L41] const SORT_165 mask_SORT_165 = (SORT_165)-1 >> (sizeof(SORT_165) * 8 - 4); [L42] const SORT_165 msb_SORT_165 = (SORT_165)1 << (4 - 1); [L44] const SORT_167 mask_SORT_167 = (SORT_167)-1 >> (sizeof(SORT_167) * 8 - 5); [L45] const SORT_167 msb_SORT_167 = (SORT_167)1 << (5 - 1); [L47] const SORT_169 mask_SORT_169 = (SORT_169)-1 >> (sizeof(SORT_169) * 8 - 6); [L48] const SORT_169 msb_SORT_169 = (SORT_169)1 << (6 - 1); [L50] const SORT_171 mask_SORT_171 = (SORT_171)-1 >> (sizeof(SORT_171) * 8 - 7); [L51] const SORT_171 msb_SORT_171 = (SORT_171)1 << (7 - 1); [L53] const SORT_174 mask_SORT_174 = (SORT_174)-1 >> (sizeof(SORT_174) * 8 - 9); [L54] const SORT_174 msb_SORT_174 = (SORT_174)1 << (9 - 1); [L56] const SORT_176 mask_SORT_176 = (SORT_176)-1 >> (sizeof(SORT_176) * 8 - 10); [L57] const SORT_176 msb_SORT_176 = (SORT_176)1 << (10 - 1); [L59] const SORT_178 mask_SORT_178 = (SORT_178)-1 >> (sizeof(SORT_178) * 8 - 11); [L60] const SORT_178 msb_SORT_178 = (SORT_178)1 << (11 - 1); [L62] const SORT_180 mask_SORT_180 = (SORT_180)-1 >> (sizeof(SORT_180) * 8 - 12); [L63] const SORT_180 msb_SORT_180 = (SORT_180)1 << (12 - 1); [L65] const SORT_182 mask_SORT_182 = (SORT_182)-1 >> (sizeof(SORT_182) * 8 - 13); [L66] const SORT_182 msb_SORT_182 = (SORT_182)1 << (13 - 1); [L68] const SORT_184 mask_SORT_184 = (SORT_184)-1 >> (sizeof(SORT_184) * 8 - 14); [L69] const SORT_184 msb_SORT_184 = (SORT_184)1 << (14 - 1); [L71] const SORT_186 mask_SORT_186 = (SORT_186)-1 >> (sizeof(SORT_186) * 8 - 15); [L72] const SORT_186 msb_SORT_186 = (SORT_186)1 << (15 - 1); [L74] const SORT_188 mask_SORT_188 = (SORT_188)-1 >> (sizeof(SORT_188) * 8 - 16); [L75] const SORT_188 msb_SORT_188 = (SORT_188)1 << (16 - 1); [L77] const SORT_190 mask_SORT_190 = (SORT_190)-1 >> (sizeof(SORT_190) * 8 - 17); [L78] const SORT_190 msb_SORT_190 = (SORT_190)1 << (17 - 1); [L80] const SORT_192 mask_SORT_192 = (SORT_192)-1 >> (sizeof(SORT_192) * 8 - 18); [L81] const SORT_192 msb_SORT_192 = (SORT_192)1 << (18 - 1); [L83] const SORT_194 mask_SORT_194 = (SORT_194)-1 >> (sizeof(SORT_194) * 8 - 19); [L84] const SORT_194 msb_SORT_194 = (SORT_194)1 << (19 - 1); [L86] const SORT_196 mask_SORT_196 = (SORT_196)-1 >> (sizeof(SORT_196) * 8 - 20); [L87] const SORT_196 msb_SORT_196 = (SORT_196)1 << (20 - 1); [L89] const SORT_198 mask_SORT_198 = (SORT_198)-1 >> (sizeof(SORT_198) * 8 - 21); [L90] const SORT_198 msb_SORT_198 = (SORT_198)1 << (21 - 1); [L92] const SORT_200 mask_SORT_200 = (SORT_200)-1 >> (sizeof(SORT_200) * 8 - 22); [L93] const SORT_200 msb_SORT_200 = (SORT_200)1 << (22 - 1); [L95] const SORT_202 mask_SORT_202 = (SORT_202)-1 >> (sizeof(SORT_202) * 8 - 23); [L96] const SORT_202 msb_SORT_202 = (SORT_202)1 << (23 - 1); [L98] const SORT_204 mask_SORT_204 = (SORT_204)-1 >> (sizeof(SORT_204) * 8 - 24); [L99] const SORT_204 msb_SORT_204 = (SORT_204)1 << (24 - 1); [L101] const SORT_206 mask_SORT_206 = (SORT_206)-1 >> (sizeof(SORT_206) * 8 - 25); [L102] const SORT_206 msb_SORT_206 = (SORT_206)1 << (25 - 1); [L104] const SORT_208 mask_SORT_208 = (SORT_208)-1 >> (sizeof(SORT_208) * 8 - 26); [L105] const SORT_208 msb_SORT_208 = (SORT_208)1 << (26 - 1); [L107] const SORT_210 mask_SORT_210 = (SORT_210)-1 >> (sizeof(SORT_210) * 8 - 27); [L108] const SORT_210 msb_SORT_210 = (SORT_210)1 << (27 - 1); [L110] const SORT_212 mask_SORT_212 = (SORT_212)-1 >> (sizeof(SORT_212) * 8 - 28); [L111] const SORT_212 msb_SORT_212 = (SORT_212)1 << (28 - 1); [L113] const SORT_214 mask_SORT_214 = (SORT_214)-1 >> (sizeof(SORT_214) * 8 - 29); [L114] const SORT_214 msb_SORT_214 = (SORT_214)1 << (29 - 1); [L116] const SORT_216 mask_SORT_216 = (SORT_216)-1 >> (sizeof(SORT_216) * 8 - 30); [L117] const SORT_216 msb_SORT_216 = (SORT_216)1 << (30 - 1); [L119] const SORT_218 mask_SORT_218 = (SORT_218)-1 >> (sizeof(SORT_218) * 8 - 31); [L120] const SORT_218 msb_SORT_218 = (SORT_218)1 << (31 - 1); [L122] const SORT_9 var_10 = 4294967295; [L123] const SORT_9 var_13 = 2863311530; [L124] const SORT_1 var_17 = 1; [L126] SORT_1 input_2; [L127] SORT_1 input_3; [L128] SORT_1 input_4; [L129] SORT_5 input_6; [L130] SORT_1 input_7; [L131] SORT_1 input_8; [L133] EXPR __VERIFIER_nondet_uint() & mask_SORT_9 VAL [mask_SORT_161=3, mask_SORT_163=7, mask_SORT_165=15, mask_SORT_167=31, mask_SORT_169=63, mask_SORT_171=127, mask_SORT_174=511, mask_SORT_176=1023, mask_SORT_178=2047, mask_SORT_180=4095, mask_SORT_182=8191, mask_SORT_184=16383, mask_SORT_186=32767, mask_SORT_188=65535, mask_SORT_190=131071, mask_SORT_192=262143, mask_SORT_194=524287, mask_SORT_196=1048575, mask_SORT_198=2097151, mask_SORT_1=1, mask_SORT_200=4194303, mask_SORT_202=8388607, mask_SORT_204=16777215, mask_SORT_206=33554431, mask_SORT_208=67108863, mask_SORT_210=134217727, mask_SORT_212=268435455, mask_SORT_214=536870911, mask_SORT_216=1073741823, mask_SORT_218=2147483647, mask_SORT_5=255, mask_SORT_9=4294967295, msb_SORT_161=2, msb_SORT_163=4, msb_SORT_165=8, msb_SORT_167=16, msb_SORT_169=32, msb_SORT_171=64, msb_SORT_174=256, msb_SORT_176=512, msb_SORT_178=1024, msb_SORT_180=2048, msb_SORT_182=4096, msb_SORT_184=8192, msb_SORT_186=16384, msb_SORT_188=32768, msb_SORT_190=65536, msb_SORT_192=131072, msb_SORT_194=262144, msb_SORT_196=524288, msb_SORT_198=1048576, msb_SORT_1=1, msb_SORT_200=2097152, msb_SORT_202=4194304, msb_SORT_204=8388608, msb_SORT_206=16777216, msb_SORT_208=33554432, msb_SORT_210=67108864, msb_SORT_212=134217728, msb_SORT_214=268435456, msb_SORT_216=536870912, msb_SORT_218=1073741824, msb_SORT_5=128, msb_SORT_9=2147483648, var_10=4294967295, var_13=2863311530, var_17=1] [L133] SORT_9 state_11 = __VERIFIER_nondet_uint() & mask_SORT_9; [L135] SORT_9 init_12_arg_1 = var_10; [L136] state_11 = init_12_arg_1 VAL [init_12_arg_1=4294967295, mask_SORT_161=3, mask_SORT_163=7, mask_SORT_165=15, mask_SORT_167=31, mask_SORT_169=63, mask_SORT_171=127, mask_SORT_174=511, mask_SORT_176=1023, mask_SORT_178=2047, mask_SORT_180=4095, mask_SORT_182=8191, mask_SORT_184=16383, mask_SORT_186=32767, mask_SORT_188=65535, mask_SORT_190=131071, mask_SORT_192=262143, mask_SORT_194=524287, mask_SORT_196=1048575, mask_SORT_198=2097151, mask_SORT_1=1, mask_SORT_200=4194303, mask_SORT_202=8388607, mask_SORT_204=16777215, mask_SORT_206=33554431, mask_SORT_208=67108863, mask_SORT_210=134217727, mask_SORT_212=268435455, mask_SORT_214=536870911, mask_SORT_216=1073741823, mask_SORT_218=2147483647, mask_SORT_5=255, mask_SORT_9=4294967295, msb_SORT_161=2, msb_SORT_163=4, msb_SORT_165=8, msb_SORT_167=16, msb_SORT_169=32, msb_SORT_171=64, msb_SORT_174=256, msb_SORT_176=512, msb_SORT_178=1024, msb_SORT_180=2048, msb_SORT_182=4096, msb_SORT_184=8192, msb_SORT_186=16384, msb_SORT_188=32768, msb_SORT_190=65536, msb_SORT_192=131072, msb_SORT_194=262144, msb_SORT_196=524288, msb_SORT_198=1048576, msb_SORT_1=1, msb_SORT_200=2097152, msb_SORT_202=4194304, msb_SORT_204=8388608, msb_SORT_206=16777216, msb_SORT_208=33554432, msb_SORT_210=67108864, msb_SORT_212=134217728, msb_SORT_214=268435456, msb_SORT_216=536870912, msb_SORT_218=1073741824, msb_SORT_5=128, msb_SORT_9=2147483648, state_11=4294967295, var_10=4294967295, var_13=2863311530, var_17=1] [L139] input_2 = __VERIFIER_nondet_uchar() [L140] input_3 = __VERIFIER_nondet_uchar() [L141] EXPR input_3 & mask_SORT_1 VAL [init_12_arg_1=4294967295, input_3=0, mask_SORT_161=3, mask_SORT_163=7, mask_SORT_165=15, mask_SORT_167=31, mask_SORT_169=63, mask_SORT_171=127, mask_SORT_174=511, mask_SORT_176=1023, mask_SORT_178=2047, mask_SORT_180=4095, mask_SORT_182=8191, mask_SORT_184=16383, mask_SORT_186=32767, mask_SORT_188=65535, mask_SORT_190=131071, mask_SORT_192=262143, mask_SORT_194=524287, mask_SORT_196=1048575, mask_SORT_198=2097151, mask_SORT_1=1, mask_SORT_200=4194303, mask_SORT_202=8388607, mask_SORT_204=16777215, mask_SORT_206=33554431, mask_SORT_208=67108863, mask_SORT_210=134217727, mask_SORT_212=268435455, mask_SORT_214=536870911, mask_SORT_216=1073741823, mask_SORT_218=2147483647, mask_SORT_5=255, mask_SORT_9=4294967295, msb_SORT_161=2, msb_SORT_163=4, msb_SORT_165=8, msb_SORT_167=16, msb_SORT_169=32, msb_SORT_171=64, msb_SORT_174=256, msb_SORT_176=512, msb_SORT_178=1024, msb_SORT_180=2048, msb_SORT_182=4096, msb_SORT_184=8192, msb_SORT_186=16384, msb_SORT_188=32768, msb_SORT_190=65536, msb_SORT_192=131072, msb_SORT_194=262144, msb_SORT_196=524288, msb_SORT_198=1048576, msb_SORT_1=1, msb_SORT_200=2097152, msb_SORT_202=4194304, msb_SORT_204=8388608, msb_SORT_206=16777216, msb_SORT_208=33554432, msb_SORT_210=67108864, msb_SORT_212=134217728, msb_SORT_214=268435456, msb_SORT_216=536870912, msb_SORT_218=1073741824, msb_SORT_5=128, msb_SORT_9=2147483648, state_11=4294967295, var_10=4294967295, var_13=2863311530, var_17=1] [L141] input_3 = input_3 & mask_SORT_1 [L142] input_4 = __VERIFIER_nondet_uchar() [L143] EXPR input_4 & mask_SORT_1 VAL [init_12_arg_1=4294967295, input_3=0, input_4=0, mask_SORT_161=3, mask_SORT_163=7, mask_SORT_165=15, mask_SORT_167=31, mask_SORT_169=63, mask_SORT_171=127, mask_SORT_174=511, mask_SORT_176=1023, mask_SORT_178=2047, mask_SORT_180=4095, mask_SORT_182=8191, mask_SORT_184=16383, mask_SORT_186=32767, mask_SORT_188=65535, mask_SORT_190=131071, mask_SORT_192=262143, mask_SORT_194=524287, mask_SORT_196=1048575, mask_SORT_198=2097151, mask_SORT_1=1, mask_SORT_200=4194303, mask_SORT_202=8388607, mask_SORT_204=16777215, mask_SORT_206=33554431, mask_SORT_208=67108863, mask_SORT_210=134217727, mask_SORT_212=268435455, mask_SORT_214=536870911, mask_SORT_216=1073741823, mask_SORT_218=2147483647, mask_SORT_5=255, mask_SORT_9=4294967295, msb_SORT_161=2, msb_SORT_163=4, msb_SORT_165=8, msb_SORT_167=16, msb_SORT_169=32, msb_SORT_171=64, msb_SORT_174=256, msb_SORT_176=512, msb_SORT_178=1024, msb_SORT_180=2048, msb_SORT_182=4096, msb_SORT_184=8192, msb_SORT_186=16384, msb_SORT_188=32768, msb_SORT_190=65536, msb_SORT_192=131072, msb_SORT_194=262144, msb_SORT_196=524288, msb_SORT_198=1048576, msb_SORT_1=1, msb_SORT_200=2097152, msb_SORT_202=4194304, msb_SORT_204=8388608, msb_SORT_206=16777216, msb_SORT_208=33554432, msb_SORT_210=67108864, msb_SORT_212=134217728, msb_SORT_214=268435456, msb_SORT_216=536870912, msb_SORT_218=1073741824, msb_SORT_5=128, msb_SORT_9=2147483648, state_11=4294967295, var_10=4294967295, var_13=2863311530, var_17=1] [L143] input_4 = input_4 & mask_SORT_1 [L144] input_6 = __VERIFIER_nondet_uchar() [L145] EXPR input_6 & mask_SORT_5 VAL [init_12_arg_1=4294967295, input_3=0, input_4=0, input_6=0, mask_SORT_161=3, mask_SORT_163=7, mask_SORT_165=15, mask_SORT_167=31, mask_SORT_169=63, mask_SORT_171=127, mask_SORT_174=511, mask_SORT_176=1023, mask_SORT_178=2047, mask_SORT_180=4095, mask_SORT_182=8191, mask_SORT_184=16383, mask_SORT_186=32767, mask_SORT_188=65535, mask_SORT_190=131071, mask_SORT_192=262143, mask_SORT_194=524287, mask_SORT_196=1048575, mask_SORT_198=2097151, mask_SORT_1=1, mask_SORT_200=4194303, mask_SORT_202=8388607, mask_SORT_204=16777215, mask_SORT_206=33554431, mask_SORT_208=67108863, mask_SORT_210=134217727, mask_SORT_212=268435455, mask_SORT_214=536870911, mask_SORT_216=1073741823, mask_SORT_218=2147483647, mask_SORT_5=255, mask_SORT_9=4294967295, msb_SORT_161=2, msb_SORT_163=4, msb_SORT_165=8, msb_SORT_167=16, msb_SORT_169=32, msb_SORT_171=64, msb_SORT_174=256, msb_SORT_176=512, msb_SORT_178=1024, msb_SORT_180=2048, msb_SORT_182=4096, msb_SORT_184=8192, msb_SORT_186=16384, msb_SORT_188=32768, msb_SORT_190=65536, msb_SORT_192=131072, msb_SORT_194=262144, msb_SORT_196=524288, msb_SORT_198=1048576, msb_SORT_1=1, msb_SORT_200=2097152, msb_SORT_202=4194304, msb_SORT_204=8388608, msb_SORT_206=16777216, msb_SORT_208=33554432, msb_SORT_210=67108864, msb_SORT_212=134217728, msb_SORT_214=268435456, msb_SORT_216=536870912, msb_SORT_218=1073741824, msb_SORT_5=128, msb_SORT_9=2147483648, state_11=4294967295, var_10=4294967295, var_13=2863311530, var_17=1] [L145] input_6 = input_6 & mask_SORT_5 [L146] input_7 = __VERIFIER_nondet_uchar() [L147] EXPR input_7 & mask_SORT_1 VAL [init_12_arg_1=4294967295, input_3=0, input_4=0, input_6=0, input_7=0, mask_SORT_161=3, mask_SORT_163=7, mask_SORT_165=15, mask_SORT_167=31, mask_SORT_169=63, mask_SORT_171=127, mask_SORT_174=511, mask_SORT_176=1023, mask_SORT_178=2047, mask_SORT_180=4095, mask_SORT_182=8191, mask_SORT_184=16383, mask_SORT_186=32767, mask_SORT_188=65535, mask_SORT_190=131071, mask_SORT_192=262143, mask_SORT_194=524287, mask_SORT_196=1048575, mask_SORT_198=2097151, mask_SORT_1=1, mask_SORT_200=4194303, mask_SORT_202=8388607, mask_SORT_204=16777215, mask_SORT_206=33554431, mask_SORT_208=67108863, mask_SORT_210=134217727, mask_SORT_212=268435455, mask_SORT_214=536870911, mask_SORT_216=1073741823, mask_SORT_218=2147483647, mask_SORT_5=255, mask_SORT_9=4294967295, msb_SORT_161=2, msb_SORT_163=4, msb_SORT_165=8, msb_SORT_167=16, msb_SORT_169=32, msb_SORT_171=64, msb_SORT_174=256, msb_SORT_176=512, msb_SORT_178=1024, msb_SORT_180=2048, msb_SORT_182=4096, msb_SORT_184=8192, msb_SORT_186=16384, msb_SORT_188=32768, msb_SORT_190=65536, msb_SORT_192=131072, msb_SORT_194=262144, msb_SORT_196=524288, msb_SORT_198=1048576, msb_SORT_1=1, msb_SORT_200=2097152, msb_SORT_202=4194304, msb_SORT_204=8388608, msb_SORT_206=16777216, msb_SORT_208=33554432, msb_SORT_210=67108864, msb_SORT_212=134217728, msb_SORT_214=268435456, msb_SORT_216=536870912, msb_SORT_218=1073741824, msb_SORT_5=128, msb_SORT_9=2147483648, state_11=4294967295, var_10=4294967295, var_13=2863311530, var_17=1] [L147] input_7 = input_7 & mask_SORT_1 [L148] input_8 = __VERIFIER_nondet_uchar() [L149] EXPR input_8 & mask_SORT_1 VAL [init_12_arg_1=4294967295, input_3=0, input_4=0, input_6=0, input_7=0, input_8=0, mask_SORT_161=3, mask_SORT_163=7, mask_SORT_165=15, mask_SORT_167=31, mask_SORT_169=63, mask_SORT_171=127, mask_SORT_174=511, mask_SORT_176=1023, mask_SORT_178=2047, mask_SORT_180=4095, mask_SORT_182=8191, mask_SORT_184=16383, mask_SORT_186=32767, mask_SORT_188=65535, mask_SORT_190=131071, mask_SORT_192=262143, mask_SORT_194=524287, mask_SORT_196=1048575, mask_SORT_198=2097151, mask_SORT_1=1, mask_SORT_200=4194303, mask_SORT_202=8388607, mask_SORT_204=16777215, mask_SORT_206=33554431, mask_SORT_208=67108863, mask_SORT_210=134217727, mask_SORT_212=268435455, mask_SORT_214=536870911, mask_SORT_216=1073741823, mask_SORT_218=2147483647, mask_SORT_5=255, mask_SORT_9=4294967295, msb_SORT_161=2, msb_SORT_163=4, msb_SORT_165=8, msb_SORT_167=16, msb_SORT_169=32, msb_SORT_171=64, msb_SORT_174=256, msb_SORT_176=512, msb_SORT_178=1024, msb_SORT_180=2048, msb_SORT_182=4096, msb_SORT_184=8192, msb_SORT_186=16384, msb_SORT_188=32768, msb_SORT_190=65536, msb_SORT_192=131072, msb_SORT_194=262144, msb_SORT_196=524288, msb_SORT_198=1048576, msb_SORT_1=1, msb_SORT_200=2097152, msb_SORT_202=4194304, msb_SORT_204=8388608, msb_SORT_206=16777216, msb_SORT_208=33554432, msb_SORT_210=67108864, msb_SORT_212=134217728, msb_SORT_214=268435456, msb_SORT_216=536870912, msb_SORT_218=1073741824, msb_SORT_5=128, msb_SORT_9=2147483648, state_11=4294967295, var_10=4294967295, var_13=2863311530, var_17=1] [L149] input_8 = input_8 & mask_SORT_1 [L152] SORT_9 var_14_arg_0 = state_11; [L153] SORT_9 var_14_arg_1 = var_13; [L154] SORT_1 var_14 = var_14_arg_0 != var_14_arg_1; [L155] SORT_1 var_18_arg_0 = var_14; [L156] SORT_1 var_18 = ~var_18_arg_0; [L157] SORT_1 var_19_arg_0 = var_17; [L158] SORT_1 var_19_arg_1 = var_18; VAL [init_12_arg_1=4294967295, input_3=0, input_4=0, input_6=0, input_7=0, input_8=0, mask_SORT_161=3, mask_SORT_163=7, mask_SORT_165=15, mask_SORT_167=31, mask_SORT_169=63, mask_SORT_171=127, mask_SORT_174=511, mask_SORT_176=1023, mask_SORT_178=2047, mask_SORT_180=4095, mask_SORT_182=8191, mask_SORT_184=16383, mask_SORT_186=32767, mask_SORT_188=65535, mask_SORT_190=131071, mask_SORT_192=262143, mask_SORT_194=524287, mask_SORT_196=1048575, mask_SORT_198=2097151, mask_SORT_1=1, mask_SORT_200=4194303, mask_SORT_202=8388607, mask_SORT_204=16777215, mask_SORT_206=33554431, mask_SORT_208=67108863, mask_SORT_210=134217727, mask_SORT_212=268435455, mask_SORT_214=536870911, mask_SORT_216=1073741823, mask_SORT_218=2147483647, mask_SORT_5=255, mask_SORT_9=4294967295, msb_SORT_161=2, msb_SORT_163=4, msb_SORT_165=8, msb_SORT_167=16, msb_SORT_169=32, msb_SORT_171=64, msb_SORT_174=256, msb_SORT_176=512, msb_SORT_178=1024, msb_SORT_180=2048, msb_SORT_182=4096, msb_SORT_184=8192, msb_SORT_186=16384, msb_SORT_188=32768, msb_SORT_190=65536, msb_SORT_192=131072, msb_SORT_194=262144, msb_SORT_196=524288, msb_SORT_198=1048576, msb_SORT_1=1, msb_SORT_200=2097152, msb_SORT_202=4194304, msb_SORT_204=8388608, msb_SORT_206=16777216, msb_SORT_208=33554432, msb_SORT_210=67108864, msb_SORT_212=134217728, msb_SORT_214=268435456, msb_SORT_216=536870912, msb_SORT_218=1073741824, msb_SORT_5=128, msb_SORT_9=2147483648, state_11=4294967295, var_10=4294967295, var_13=2863311530, var_14=1, var_14_arg_0=4294967295, var_14_arg_1=2863311530, var_17=1, var_18=254, var_18_arg_0=1, var_19_arg_0=1, var_19_arg_1=254] [L159] EXPR var_19_arg_0 & var_19_arg_1 VAL [init_12_arg_1=4294967295, input_3=0, input_4=0, input_6=0, input_7=0, input_8=0, mask_SORT_161=3, mask_SORT_163=7, mask_SORT_165=15, mask_SORT_167=31, mask_SORT_169=63, mask_SORT_171=127, mask_SORT_174=511, mask_SORT_176=1023, mask_SORT_178=2047, mask_SORT_180=4095, mask_SORT_182=8191, mask_SORT_184=16383, mask_SORT_186=32767, mask_SORT_188=65535, mask_SORT_190=131071, mask_SORT_192=262143, mask_SORT_194=524287, mask_SORT_196=1048575, mask_SORT_198=2097151, mask_SORT_1=1, mask_SORT_200=4194303, mask_SORT_202=8388607, mask_SORT_204=16777215, mask_SORT_206=33554431, mask_SORT_208=67108863, mask_SORT_210=134217727, mask_SORT_212=268435455, mask_SORT_214=536870911, mask_SORT_216=1073741823, mask_SORT_218=2147483647, mask_SORT_5=255, mask_SORT_9=4294967295, msb_SORT_161=2, msb_SORT_163=4, msb_SORT_165=8, msb_SORT_167=16, msb_SORT_169=32, msb_SORT_171=64, msb_SORT_174=256, msb_SORT_176=512, msb_SORT_178=1024, msb_SORT_180=2048, msb_SORT_182=4096, msb_SORT_184=8192, msb_SORT_186=16384, msb_SORT_188=32768, msb_SORT_190=65536, msb_SORT_192=131072, msb_SORT_194=262144, msb_SORT_196=524288, msb_SORT_198=1048576, msb_SORT_1=1, msb_SORT_200=2097152, msb_SORT_202=4194304, msb_SORT_204=8388608, msb_SORT_206=16777216, msb_SORT_208=33554432, msb_SORT_210=67108864, msb_SORT_212=134217728, msb_SORT_214=268435456, msb_SORT_216=536870912, msb_SORT_218=1073741824, msb_SORT_5=128, msb_SORT_9=2147483648, state_11=4294967295, var_10=4294967295, var_13=2863311530, var_14=1, var_14_arg_0=4294967295, var_14_arg_1=2863311530, var_17=1, var_18=254, var_18_arg_0=1, var_19_arg_0=1, var_19_arg_1=254] [L159] SORT_1 var_19 = var_19_arg_0 & var_19_arg_1; [L160] EXPR var_19 & mask_SORT_1 VAL [init_12_arg_1=4294967295, input_3=0, input_4=0, input_6=0, input_7=0, input_8=0, mask_SORT_161=3, mask_SORT_163=7, mask_SORT_165=15, mask_SORT_167=31, mask_SORT_169=63, mask_SORT_171=127, mask_SORT_174=511, mask_SORT_176=1023, mask_SORT_178=2047, mask_SORT_180=4095, mask_SORT_182=8191, mask_SORT_184=16383, mask_SORT_186=32767, mask_SORT_188=65535, mask_SORT_190=131071, mask_SORT_192=262143, mask_SORT_194=524287, mask_SORT_196=1048575, mask_SORT_198=2097151, mask_SORT_1=1, mask_SORT_200=4194303, mask_SORT_202=8388607, mask_SORT_204=16777215, mask_SORT_206=33554431, mask_SORT_208=67108863, mask_SORT_210=134217727, mask_SORT_212=268435455, mask_SORT_214=536870911, mask_SORT_216=1073741823, mask_SORT_218=2147483647, mask_SORT_5=255, mask_SORT_9=4294967295, msb_SORT_161=2, msb_SORT_163=4, msb_SORT_165=8, msb_SORT_167=16, msb_SORT_169=32, msb_SORT_171=64, msb_SORT_174=256, msb_SORT_176=512, msb_SORT_178=1024, msb_SORT_180=2048, msb_SORT_182=4096, msb_SORT_184=8192, msb_SORT_186=16384, msb_SORT_188=32768, msb_SORT_190=65536, msb_SORT_192=131072, msb_SORT_194=262144, msb_SORT_196=524288, msb_SORT_198=1048576, msb_SORT_1=1, msb_SORT_200=2097152, msb_SORT_202=4194304, msb_SORT_204=8388608, msb_SORT_206=16777216, msb_SORT_208=33554432, msb_SORT_210=67108864, msb_SORT_212=134217728, msb_SORT_214=268435456, msb_SORT_216=536870912, msb_SORT_218=1073741824, msb_SORT_5=128, msb_SORT_9=2147483648, state_11=4294967295, var_10=4294967295, var_13=2863311530, var_14=1, var_14_arg_0=4294967295, var_14_arg_1=2863311530, var_17=1, var_18=254, var_18_arg_0=1, var_19=1, var_19_arg_0=1, var_19_arg_1=254] [L160] var_19 = var_19 & mask_SORT_1 [L161] SORT_1 bad_20_arg_0 = var_19; [L162] CALL __VERIFIER_assert(!(bad_20_arg_0)) [L21] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L21] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 652 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.1s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2207 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2207 mSDsluCounter, 4489 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2245 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18 IncrementalHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 2244 mSDtfsCounter, 18 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=652occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 16 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 83 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-26 12:02:26,622 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52167649-6559-40bb-ade7-909178e699dc/bin/uautomizer-verify-VRDe98Ueme/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52167649-6559-40bb-ade7-909178e699dc/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52167649-6559-40bb-ade7-909178e699dc/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52167649-6559-40bb-ade7-909178e699dc/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52167649-6559-40bb-ade7-909178e699dc/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_CRC.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52167649-6559-40bb-ade7-909178e699dc/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52167649-6559-40bb-ade7-909178e699dc/bin/uautomizer-verify-VRDe98Ueme --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 217c4f5eefa3b0856788b7ca9679c9bd3ae2e76dd46c0382e56b3111181a98a9 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:02:29,291 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:02:29,387 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52167649-6559-40bb-ade7-909178e699dc/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2023-11-26 12:02:29,394 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:02:29,394 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:02:29,425 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:02:29,426 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:02:29,426 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:02:29,427 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 12:02:29,428 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 12:02:29,429 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 12:02:29,429 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 12:02:29,430 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:02:29,431 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:02:29,432 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:02:29,433 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:02:29,433 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 12:02:29,434 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:02:29,435 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 12:02:29,435 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 12:02:29,436 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 12:02:29,437 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-26 12:02:29,437 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-26 12:02:29,438 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-26 12:02:29,438 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:02:29,439 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:02:29,440 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:02:29,440 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:02:29,441 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 12:02:29,441 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 12:02:29,442 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:02:29,442 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:02:29,443 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 12:02:29,443 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 12:02:29,444 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-26 12:02:29,444 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-26 12:02:29,444 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 12:02:29,445 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 12:02:29,445 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 12:02:29,446 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 12:02:29,446 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 12:02:29,447 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-26 12:02:29,447 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_52167649-6559-40bb-ade7-909178e699dc/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52167649-6559-40bb-ade7-909178e699dc/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 217c4f5eefa3b0856788b7ca9679c9bd3ae2e76dd46c0382e56b3111181a98a9 [2023-11-26 12:02:29,791 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:02:29,823 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:02:29,826 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:02:29,827 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:02:29,828 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:02:29,829 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52167649-6559-40bb-ade7-909178e699dc/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_CRC.c [2023-11-26 12:02:33,011 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:02:33,358 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:02:33,359 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52167649-6559-40bb-ade7-909178e699dc/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_CRC.c [2023-11-26 12:02:33,381 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52167649-6559-40bb-ade7-909178e699dc/bin/uautomizer-verify-VRDe98Ueme/data/cc9913c22/9e428736491b4b61ad512bf4dddf470f/FLAG51cfbeceb [2023-11-26 12:02:33,400 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52167649-6559-40bb-ade7-909178e699dc/bin/uautomizer-verify-VRDe98Ueme/data/cc9913c22/9e428736491b4b61ad512bf4dddf470f [2023-11-26 12:02:33,403 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:02:33,404 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:02:33,405 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:02:33,406 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:02:33,422 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:02:33,423 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:02:33" (1/1) ... [2023-11-26 12:02:33,424 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7931acc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:33, skipping insertion in model container [2023-11-26 12:02:33,424 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:02:33" (1/1) ... [2023-11-26 12:02:33,490 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:02:33,693 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52167649-6559-40bb-ade7-909178e699dc/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_CRC.c[1245,1258] [2023-11-26 12:02:34,092 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:02:34,137 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:02:34,155 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52167649-6559-40bb-ade7-909178e699dc/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_CRC.c[1245,1258] [2023-11-26 12:02:34,306 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:02:34,323 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:02:34,323 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:34 WrapperNode [2023-11-26 12:02:34,323 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:02:34,326 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:02:34,327 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:02:34,327 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:02:34,334 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:34" (1/1) ... [2023-11-26 12:02:34,387 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:34" (1/1) ... [2023-11-26 12:02:34,476 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 676 [2023-11-26 12:02:34,489 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:02:34,490 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:02:34,490 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:02:34,490 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:02:34,504 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:34" (1/1) ... [2023-11-26 12:02:34,505 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:34" (1/1) ... [2023-11-26 12:02:34,513 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:34" (1/1) ... [2023-11-26 12:02:34,550 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2023-11-26 12:02:34,551 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:34" (1/1) ... [2023-11-26 12:02:34,551 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:34" (1/1) ... [2023-11-26 12:02:34,586 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:34" (1/1) ... [2023-11-26 12:02:34,606 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:34" (1/1) ... [2023-11-26 12:02:34,609 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:34" (1/1) ... [2023-11-26 12:02:34,615 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:34" (1/1) ... [2023-11-26 12:02:34,650 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:02:34,651 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:02:34,651 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:02:34,651 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:02:34,652 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:34" (1/1) ... [2023-11-26 12:02:34,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:02:34,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52167649-6559-40bb-ade7-909178e699dc/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:02:34,723 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52167649-6559-40bb-ade7-909178e699dc/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 12:02:34,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52167649-6559-40bb-ade7-909178e699dc/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 12:02:34,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:02:34,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-26 12:02:34,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-26 12:02:34,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:02:34,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:02:35,011 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:02:35,017 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:02:35,785 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:02:35,865 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:02:35,866 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 12:02:35,867 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:02:35 BoogieIcfgContainer [2023-11-26 12:02:35,867 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:02:35,869 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 12:02:35,870 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 12:02:35,873 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 12:02:35,874 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:02:33" (1/3) ... [2023-11-26 12:02:35,875 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@510b749c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:02:35, skipping insertion in model container [2023-11-26 12:02:35,875 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:34" (2/3) ... [2023-11-26 12:02:35,877 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@510b749c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:02:35, skipping insertion in model container [2023-11-26 12:02:35,878 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:02:35" (3/3) ... [2023-11-26 12:02:35,879 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_CRC.c [2023-11-26 12:02:35,903 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 12:02:35,903 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 12:02:35,965 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 12:02:35,972 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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;@cc5ce07, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 12:02:35,973 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 12:02:35,978 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:35,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-26 12:02:35,986 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:02:35,987 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-26 12:02:35,987 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:02:35,997 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:35,997 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2023-11-26 12:02:36,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:02:36,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [289601546] [2023-11-26 12:02:36,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:36,019 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 12:02:36,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52167649-6559-40bb-ade7-909178e699dc/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:02:36,025 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52167649-6559-40bb-ade7-909178e699dc/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-26 12:02:36,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52167649-6559-40bb-ade7-909178e699dc/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-26 12:02:36,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:36,306 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-26 12:02:36,314 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:02:36,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:02:36,604 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:02:36,605 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:02:36,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [289601546] [2023-11-26 12:02:36,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [289601546] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:02:36,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:02:36,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:02:36,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970163895] [2023-11-26 12:02:36,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:02:36,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:02:36,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:02:36,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:02:36,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:02:36,673 INFO L87 Difference]: Start difference. First operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:36,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:02:36,844 INFO L93 Difference]: Finished difference Result 16 states and 24 transitions. [2023-11-26 12:02:36,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:02:36,847 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-26 12:02:36,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:02:36,857 INFO L225 Difference]: With dead ends: 16 [2023-11-26 12:02:36,858 INFO L226 Difference]: Without dead ends: 9 [2023-11-26 12:02:36,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:02:36,867 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 3 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:02:36,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 6 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 12:02:36,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-11-26 12:02:36,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2023-11-26 12:02:36,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:36,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2023-11-26 12:02:36,913 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2023-11-26 12:02:36,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:02:36,913 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2023-11-26 12:02:36,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:36,915 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2023-11-26 12:02:36,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-26 12:02:36,915 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:02:36,916 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2023-11-26 12:02:36,926 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52167649-6559-40bb-ade7-909178e699dc/bin/uautomizer-verify-VRDe98Ueme/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)] Ended with exit code 0 [2023-11-26 12:02:37,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52167649-6559-40bb-ade7-909178e699dc/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 12:02:37,123 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:02:37,124 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:37,124 INFO L85 PathProgramCache]: Analyzing trace with hash -1393329571, now seen corresponding path program 1 times [2023-11-26 12:02:37,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:02:37,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1190778096] [2023-11-26 12:02:37,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:37,128 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 12:02:37,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52167649-6559-40bb-ade7-909178e699dc/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:02:37,130 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52167649-6559-40bb-ade7-909178e699dc/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-26 12:02:37,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52167649-6559-40bb-ade7-909178e699dc/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-26 12:02:37,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:37,608 INFO L262 TraceCheckSpWp]: Trace formula consists of 627 conjuncts, 111 conjunts are in the unsatisfiable core [2023-11-26 12:02:37,621 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:02:40,429 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:02:40,429 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:02:46,405 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:02:46,406 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:02:46,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1190778096] [2023-11-26 12:02:46,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1190778096] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:02:46,407 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 12:02:46,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-26 12:02:46,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412221946] [2023-11-26 12:02:46,408 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 12:02:46,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 12:02:46,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:02:46,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 12:02:46,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-26 12:02:46,411 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:47,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:02:47,005 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2023-11-26 12:02:47,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 12:02:47,006 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-26 12:02:47,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:02:47,006 INFO L225 Difference]: With dead ends: 14 [2023-11-26 12:02:47,007 INFO L226 Difference]: Without dead ends: 12 [2023-11-26 12:02:47,007 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-26 12:02:47,009 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 6 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 12:02:47,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 11 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 12:02:47,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2023-11-26 12:02:47,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2023-11-26 12:02:47,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:47,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2023-11-26 12:02:47,016 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 7 [2023-11-26 12:02:47,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:02:47,017 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2023-11-26 12:02:47,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:47,018 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2023-11-26 12:02:47,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-26 12:02:47,018 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:02:47,019 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1] [2023-11-26 12:02:47,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52167649-6559-40bb-ade7-909178e699dc/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-26 12:02:47,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52167649-6559-40bb-ade7-909178e699dc/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 12:02:47,226 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:02:47,226 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:47,226 INFO L85 PathProgramCache]: Analyzing trace with hash -2112524529, now seen corresponding path program 2 times [2023-11-26 12:02:47,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:02:47,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [655298400] [2023-11-26 12:02:47,229 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 12:02:47,229 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 12:02:47,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52167649-6559-40bb-ade7-909178e699dc/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:02:47,230 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52167649-6559-40bb-ade7-909178e699dc/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-26 12:02:47,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52167649-6559-40bb-ade7-909178e699dc/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 12:02:47,980 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-26 12:02:47,981 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 12:02:48,016 INFO L262 TraceCheckSpWp]: Trace formula consists of 1147 conjuncts, 506 conjunts are in the unsatisfiable core [2023-11-26 12:02:48,059 INFO L285 TraceCheckSpWp]: Computing forward predicates...