./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p22.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 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_d028894c-0759-4edb-9ef9-092afa0b3845/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d028894c-0759-4edb-9ef9-092afa0b3845/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d028894c-0759-4edb-9ef9-092afa0b3845/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d028894c-0759-4edb-9ef9-092afa0b3845/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p22.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d028894c-0759-4edb-9ef9-092afa0b3845/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d028894c-0759-4edb-9ef9-092afa0b3845/bin/uautomizer-verify-bycVGegfSx --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 81099e1fe8016daaefd672ebf53a7cbfe30573425760bd713b63c430b338ca02 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:04:56,204 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:04:56,314 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d028894c-0759-4edb-9ef9-092afa0b3845/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-21 22:04:56,318 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:04:56,319 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:04:56,342 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:04:56,343 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:04:56,343 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:04:56,344 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:04:56,345 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:04:56,346 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:04:56,346 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:04:56,347 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:04:56,348 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:04:56,349 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:04:56,349 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:04:56,350 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:04:56,350 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:04:56,351 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:04:56,352 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:04:56,352 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:04:56,353 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:04:56,353 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:04:56,354 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:04:56,354 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:04:56,355 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:04:56,355 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:04:56,356 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:04:56,356 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:04:56,357 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:04:56,357 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:04:56,357 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:04:56,358 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:04:56,358 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:04:56,359 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:04:56,359 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:04:56,360 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:04:56,360 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:04:56,360 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:04:56,361 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_d028894c-0759-4edb-9ef9-092afa0b3845/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d028894c-0759-4edb-9ef9-092afa0b3845/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 81099e1fe8016daaefd672ebf53a7cbfe30573425760bd713b63c430b338ca02 [2023-11-21 22:04:56,657 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:04:56,692 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:04:56,694 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:04:56,697 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:04:56,698 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:04:56,700 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d028894c-0759-4edb-9ef9-092afa0b3845/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p22.c [2023-11-21 22:04:59,888 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:05:00,144 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:05:00,145 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d028894c-0759-4edb-9ef9-092afa0b3845/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p22.c [2023-11-21 22:05:00,162 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d028894c-0759-4edb-9ef9-092afa0b3845/bin/uautomizer-verify-bycVGegfSx/data/e844842bf/5db0eb98049c4aca8c05a0930e2d936a/FLAG58519243c [2023-11-21 22:05:00,182 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d028894c-0759-4edb-9ef9-092afa0b3845/bin/uautomizer-verify-bycVGegfSx/data/e844842bf/5db0eb98049c4aca8c05a0930e2d936a [2023-11-21 22:05:00,185 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:05:00,187 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:05:00,188 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:05:00,189 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:05:00,197 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:05:00,198 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:05:00" (1/1) ... [2023-11-21 22:05:00,199 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7921c3a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:00, skipping insertion in model container [2023-11-21 22:05:00,200 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:05:00" (1/1) ... [2023-11-21 22:05:00,264 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:05:00,492 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_d028894c-0759-4edb-9ef9-092afa0b3845/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p22.c[1266,1279] [2023-11-21 22:05:00,649 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:05:00,666 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:05:00,678 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_d028894c-0759-4edb-9ef9-092afa0b3845/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p22.c[1266,1279] [2023-11-21 22:05:00,774 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:05:00,790 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:05:00,791 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:00 WrapperNode [2023-11-21 22:05:00,791 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:05:00,792 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:05:00,793 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:05:00,793 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:05:00,801 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:00" (1/1) ... [2023-11-21 22:05:00,825 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:00" (1/1) ... [2023-11-21 22:05:00,954 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 800 [2023-11-21 22:05:00,961 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:05:00,962 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:05:00,962 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:05:00,962 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:05:00,975 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:00" (1/1) ... [2023-11-21 22:05:00,976 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:00" (1/1) ... [2023-11-21 22:05:00,992 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:00" (1/1) ... [2023-11-21 22:05:01,027 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 22:05:01,039 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:00" (1/1) ... [2023-11-21 22:05:01,039 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:00" (1/1) ... [2023-11-21 22:05:01,086 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:00" (1/1) ... [2023-11-21 22:05:01,094 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:00" (1/1) ... [2023-11-21 22:05:01,144 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:00" (1/1) ... [2023-11-21 22:05:01,166 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:00" (1/1) ... [2023-11-21 22:05:01,196 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:05:01,197 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:05:01,197 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:05:01,198 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:05:01,199 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:00" (1/1) ... [2023-11-21 22:05:01,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:05:01,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d028894c-0759-4edb-9ef9-092afa0b3845/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:05:01,272 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d028894c-0759-4edb-9ef9-092afa0b3845/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:05:01,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d028894c-0759-4edb-9ef9-092afa0b3845/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:05:01,329 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:05:01,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 22:05:01,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:05:01,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:05:01,509 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:05:01,512 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:05:02,426 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:05:03,424 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:05:03,424 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 22:05:03,426 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:05:03 BoogieIcfgContainer [2023-11-21 22:05:03,426 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:05:03,429 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:05:03,429 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:05:03,432 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:05:03,433 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:05:00" (1/3) ... [2023-11-21 22:05:03,433 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42e7afa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:05:03, skipping insertion in model container [2023-11-21 22:05:03,434 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:00" (2/3) ... [2023-11-21 22:05:03,434 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42e7afa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:05:03, skipping insertion in model container [2023-11-21 22:05:03,434 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:05:03" (3/3) ... [2023-11-21 22:05:03,436 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p22.c [2023-11-21 22:05:03,455 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:05:03,456 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 22:05:03,505 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:05:03,513 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;@3f93f554, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:05:03,513 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 22:05:03,517 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:03,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-21 22:05:03,524 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:05:03,525 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-21 22:05:03,526 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:05:03,531 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:05:03,532 INFO L85 PathProgramCache]: Analyzing trace with hash 18869838, now seen corresponding path program 1 times [2023-11-21 22:05:03,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:05:03,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154253891] [2023-11-21 22:05:03,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:05:03,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:05:03,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:05:03,978 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:05:04,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:05:04,331 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:05:04,336 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 22:05:04,338 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-21 22:05:04,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:05:04,346 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-21 22:05:04,352 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 22:05:04,398 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-21 22:05:04,419 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 10:05:04 BoogieIcfgContainer [2023-11-21 22:05:04,419 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 22:05:04,421 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:05:04,421 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:05:04,422 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:05:04,422 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:05:03" (3/4) ... [2023-11-21 22:05:04,427 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 22:05:04,428 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:05:04,430 INFO L158 Benchmark]: Toolchain (without parser) took 4242.89ms. Allocated memory was 180.4MB in the beginning and 245.4MB in the end (delta: 65.0MB). Free memory was 133.6MB in the beginning and 89.0MB in the end (delta: 44.7MB). Peak memory consumption was 111.9MB. Max. memory is 16.1GB. [2023-11-21 22:05:04,430 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 115.3MB. Free memory is still 65.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:05:04,431 INFO L158 Benchmark]: CACSL2BoogieTranslator took 603.07ms. Allocated memory is still 180.4MB. Free memory was 133.6MB in the beginning and 112.1MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-21 22:05:04,432 INFO L158 Benchmark]: Boogie Procedure Inliner took 169.05ms. Allocated memory is still 180.4MB. Free memory was 112.1MB in the beginning and 98.6MB in the end (delta: 13.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-21 22:05:04,438 INFO L158 Benchmark]: Boogie Preprocessor took 234.44ms. Allocated memory is still 180.4MB. Free memory was 98.6MB in the beginning and 141.2MB in the end (delta: -42.6MB). Peak memory consumption was 20.9MB. Max. memory is 16.1GB. [2023-11-21 22:05:04,440 INFO L158 Benchmark]: RCFGBuilder took 2229.27ms. Allocated memory was 180.4MB in the beginning and 245.4MB in the end (delta: 65.0MB). Free memory was 141.2MB in the beginning and 140.4MB in the end (delta: 812.0kB). Peak memory consumption was 101.5MB. Max. memory is 16.1GB. [2023-11-21 22:05:04,440 INFO L158 Benchmark]: TraceAbstraction took 990.76ms. Allocated memory is still 245.4MB. Free memory was 140.4MB in the beginning and 89.0MB in the end (delta: 51.4MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. [2023-11-21 22:05:04,441 INFO L158 Benchmark]: Witness Printer took 7.52ms. Allocated memory is still 245.4MB. Free memory was 89.0MB in the beginning and 89.0MB in the end (delta: 2.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:05:04,450 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 115.3MB. Free memory is still 65.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 603.07ms. Allocated memory is still 180.4MB. Free memory was 133.6MB in the beginning and 112.1MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 169.05ms. Allocated memory is still 180.4MB. Free memory was 112.1MB in the beginning and 98.6MB in the end (delta: 13.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 234.44ms. Allocated memory is still 180.4MB. Free memory was 98.6MB in the beginning and 141.2MB in the end (delta: -42.6MB). Peak memory consumption was 20.9MB. Max. memory is 16.1GB. * RCFGBuilder took 2229.27ms. Allocated memory was 180.4MB in the beginning and 245.4MB in the end (delta: 65.0MB). Free memory was 141.2MB in the beginning and 140.4MB in the end (delta: 812.0kB). Peak memory consumption was 101.5MB. Max. memory is 16.1GB. * TraceAbstraction took 990.76ms. Allocated memory is still 245.4MB. Free memory was 140.4MB in the beginning and 89.0MB in the end (delta: 51.4MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. * Witness Printer took 7.52ms. Allocated memory is still 245.4MB. Free memory was 89.0MB in the beginning and 89.0MB in the end (delta: 2.7kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 21]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 164, overapproximation of bitwiseAnd at line 151. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L29] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 8); [L30] const SORT_3 msb_SORT_3 = (SORT_3)1 << (8 - 1); [L32] const SORT_10 mask_SORT_10 = (SORT_10)-1 >> (sizeof(SORT_10) * 8 - 32); [L33] const SORT_10 msb_SORT_10 = (SORT_10)1 << (32 - 1); [L35] const SORT_33 mask_SORT_33 = (SORT_33)-1 >> (sizeof(SORT_33) * 8 - 4); [L36] const SORT_33 msb_SORT_33 = (SORT_33)1 << (4 - 1); [L38] const SORT_69 mask_SORT_69 = (SORT_69)-1 >> (sizeof(SORT_69) * 8 - 10); [L39] const SORT_69 msb_SORT_69 = (SORT_69)1 << (10 - 1); [L41] const SORT_3 var_7 = 0; [L42] const SORT_10 var_12 = 0; [L43] const SORT_1 var_14 = 0; [L44] const SORT_10 var_18 = 1; [L45] const SORT_1 var_23 = 1; [L46] const SORT_69 var_70 = 0; [L47] const SORT_10 var_113 = 104; [L49] SORT_1 input_2; [L50] SORT_3 input_4; [L51] SORT_1 input_5; [L52] SORT_1 input_6; [L53] SORT_1 input_31; [L54] SORT_33 input_34; [L55] SORT_1 input_36; [L56] SORT_33 input_38; [L57] SORT_1 input_40; [L58] SORT_1 input_42; [L59] SORT_1 input_48; [L60] SORT_1 input_50; [L61] SORT_1 input_52; [L62] SORT_1 input_57; [L63] SORT_1 input_67; [L64] SORT_3 input_75; [L65] SORT_1 input_82; [L66] SORT_1 input_89; [L67] SORT_1 input_95; [L68] SORT_1 input_101; [L69] SORT_1 input_107; [L70] SORT_1 input_108; [L71] SORT_1 input_109; [L72] SORT_1 input_126; [L73] SORT_69 input_136; [L74] SORT_1 input_144; [L75] SORT_1 input_145; [L76] SORT_1 input_146; [L78] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L78] SORT_3 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L79] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L79] SORT_1 state_15 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L80] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L80] SORT_1 state_27 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L81] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L81] SORT_1 state_29 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L82] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L82] SORT_1 state_44 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L83] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L83] SORT_1 state_46 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L84] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L84] SORT_1 state_54 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L85] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L85] SORT_1 state_59 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L86] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L86] SORT_1 state_61 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L87] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L87] SORT_1 state_63 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L88] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L88] SORT_1 state_65 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L89] EXPR __VERIFIER_nondet_ushort() & mask_SORT_69 [L89] SORT_69 state_71 = __VERIFIER_nondet_ushort() & mask_SORT_69; [L90] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L90] SORT_1 state_73 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L92] SORT_3 init_9_arg_1 = var_7; [L93] state_8 = init_9_arg_1 [L94] SORT_1 init_16_arg_1 = var_14; [L95] state_15 = init_16_arg_1 [L96] SORT_1 init_28_arg_1 = var_14; [L97] state_27 = init_28_arg_1 [L98] SORT_1 init_30_arg_1 = var_14; [L99] state_29 = init_30_arg_1 [L100] SORT_1 init_45_arg_1 = var_14; [L101] state_44 = init_45_arg_1 [L102] SORT_1 init_47_arg_1 = var_14; [L103] state_46 = init_47_arg_1 [L104] SORT_1 init_55_arg_1 = var_23; [L105] state_54 = init_55_arg_1 [L106] SORT_1 init_60_arg_1 = var_14; [L107] state_59 = init_60_arg_1 [L108] SORT_1 init_62_arg_1 = var_14; [L109] state_61 = init_62_arg_1 [L110] SORT_1 init_64_arg_1 = var_14; [L111] state_63 = init_64_arg_1 [L112] SORT_1 init_66_arg_1 = var_14; [L113] state_65 = init_66_arg_1 [L114] SORT_69 init_72_arg_1 = var_70; [L115] state_71 = init_72_arg_1 [L116] SORT_1 init_74_arg_1 = var_14; [L117] state_73 = init_74_arg_1 VAL [init_16_arg_1=0, init_28_arg_1=0, init_30_arg_1=0, init_45_arg_1=0, init_47_arg_1=0, init_55_arg_1=1, init_60_arg_1=0, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_72_arg_1=0, init_74_arg_1=0, init_9_arg_1=0, mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_33=15, mask_SORT_3=255, mask_SORT_69=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_33=8, msb_SORT_3=128, msb_SORT_69=512, state_15=0, state_27=0, state_29=0, state_44=0, state_46=0, state_54=1, state_59=0, state_61=0, state_63=0, state_65=0, state_71=0, state_73=0, state_8=0, var_113=104, var_12=0, var_14=0, var_18=1, var_23=1, var_70=0, var_7=0] [L120] input_2 = __VERIFIER_nondet_uchar() [L121] input_4 = __VERIFIER_nondet_uchar() [L122] input_5 = __VERIFIER_nondet_uchar() [L123] input_6 = __VERIFIER_nondet_uchar() [L124] input_31 = __VERIFIER_nondet_uchar() [L125] input_34 = __VERIFIER_nondet_uchar() [L126] input_36 = __VERIFIER_nondet_uchar() [L127] input_38 = __VERIFIER_nondet_uchar() [L128] input_40 = __VERIFIER_nondet_uchar() [L129] input_42 = __VERIFIER_nondet_uchar() [L130] input_48 = __VERIFIER_nondet_uchar() [L131] input_50 = __VERIFIER_nondet_uchar() [L132] input_52 = __VERIFIER_nondet_uchar() [L133] input_57 = __VERIFIER_nondet_uchar() [L134] input_67 = __VERIFIER_nondet_uchar() [L135] input_75 = __VERIFIER_nondet_uchar() [L136] input_82 = __VERIFIER_nondet_uchar() [L137] input_89 = __VERIFIER_nondet_uchar() [L138] input_95 = __VERIFIER_nondet_uchar() [L139] input_101 = __VERIFIER_nondet_uchar() [L140] input_107 = __VERIFIER_nondet_uchar() [L141] input_108 = __VERIFIER_nondet_uchar() [L142] input_109 = __VERIFIER_nondet_uchar() [L143] input_126 = __VERIFIER_nondet_uchar() [L144] input_136 = __VERIFIER_nondet_ushort() [L145] input_144 = __VERIFIER_nondet_uchar() [L146] input_145 = __VERIFIER_nondet_uchar() [L147] input_146 = __VERIFIER_nondet_uchar() [L150] SORT_3 var_11_arg_0 = state_8; [L151] EXPR var_11_arg_0 & mask_SORT_3 [L151] var_11_arg_0 = var_11_arg_0 & mask_SORT_3 [L152] SORT_10 var_11 = var_11_arg_0; [L153] SORT_10 var_13_arg_0 = var_11; [L154] SORT_10 var_13_arg_1 = var_12; [L155] SORT_1 var_13 = var_13_arg_0 == var_13_arg_1; [L156] SORT_1 var_17_arg_0 = state_15; [L157] EXPR var_17_arg_0 & mask_SORT_1 [L157] var_17_arg_0 = var_17_arg_0 & mask_SORT_1 [L158] SORT_10 var_17 = var_17_arg_0; [L159] SORT_10 var_19_arg_0 = var_17; [L160] SORT_10 var_19_arg_1 = var_18; [L161] SORT_1 var_19 = var_19_arg_0 == var_19_arg_1; [L162] SORT_1 var_20_arg_0 = var_13; [L163] SORT_1 var_20_arg_1 = var_19; [L164] EXPR var_20_arg_0 | var_20_arg_1 [L164] SORT_1 var_20 = var_20_arg_0 | var_20_arg_1; [L165] SORT_1 var_24_arg_0 = var_20; [L166] SORT_1 var_24 = ~var_24_arg_0; [L167] SORT_1 var_25_arg_0 = var_23; [L168] SORT_1 var_25_arg_1 = var_24; [L169] EXPR var_25_arg_0 & var_25_arg_1 [L169] SORT_1 var_25 = var_25_arg_0 & var_25_arg_1; [L170] EXPR var_25 & mask_SORT_1 [L170] var_25 = var_25 & mask_SORT_1 [L171] SORT_1 bad_26_arg_0 = var_25; [L172] CALL __VERIFIER_assert(!(bad_26_arg_0)) [L21] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L21] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-21 22:05:04,491 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d028894c-0759-4edb-9ef9-092afa0b3845/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d028894c-0759-4edb-9ef9-092afa0b3845/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d028894c-0759-4edb-9ef9-092afa0b3845/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d028894c-0759-4edb-9ef9-092afa0b3845/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d028894c-0759-4edb-9ef9-092afa0b3845/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p22.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d028894c-0759-4edb-9ef9-092afa0b3845/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d028894c-0759-4edb-9ef9-092afa0b3845/bin/uautomizer-verify-bycVGegfSx --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 81099e1fe8016daaefd672ebf53a7cbfe30573425760bd713b63c430b338ca02 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:05:07,335 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:05:07,467 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d028894c-0759-4edb-9ef9-092afa0b3845/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2023-11-21 22:05:07,476 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:05:07,476 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:05:07,524 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:05:07,525 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:05:07,526 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:05:07,527 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:05:07,532 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:05:07,533 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:05:07,533 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:05:07,534 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:05:07,536 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:05:07,536 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:05:07,537 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:05:07,537 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:05:07,538 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:05:07,538 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:05:07,538 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:05:07,539 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:05:07,539 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 22:05:07,540 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 22:05:07,540 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 22:05:07,541 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:05:07,541 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:05:07,542 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:05:07,543 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:05:07,543 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:05:07,543 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:05:07,545 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:05:07,545 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:05:07,546 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:05:07,546 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:05:07,546 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-21 22:05:07,546 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 22:05:07,547 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:05:07,548 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:05:07,548 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:05:07,548 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:05:07,549 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:05:07,549 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-21 22:05:07,549 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_d028894c-0759-4edb-9ef9-092afa0b3845/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d028894c-0759-4edb-9ef9-092afa0b3845/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 81099e1fe8016daaefd672ebf53a7cbfe30573425760bd713b63c430b338ca02 [2023-11-21 22:05:07,970 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:05:08,000 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:05:08,005 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:05:08,007 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:05:08,007 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:05:08,009 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d028894c-0759-4edb-9ef9-092afa0b3845/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p22.c [2023-11-21 22:05:11,329 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:05:11,611 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:05:11,611 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d028894c-0759-4edb-9ef9-092afa0b3845/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p22.c [2023-11-21 22:05:11,624 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d028894c-0759-4edb-9ef9-092afa0b3845/bin/uautomizer-verify-bycVGegfSx/data/06a706778/2d0c0fb952244722aee2e94fd1e3d8f0/FLAG9afa8e829 [2023-11-21 22:05:11,652 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d028894c-0759-4edb-9ef9-092afa0b3845/bin/uautomizer-verify-bycVGegfSx/data/06a706778/2d0c0fb952244722aee2e94fd1e3d8f0 [2023-11-21 22:05:11,654 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:05:11,656 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:05:11,657 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:05:11,657 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:05:11,663 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:05:11,664 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:05:11" (1/1) ... [2023-11-21 22:05:11,665 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37e87d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:11, skipping insertion in model container [2023-11-21 22:05:11,665 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:05:11" (1/1) ... [2023-11-21 22:05:11,730 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:05:11,900 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_d028894c-0759-4edb-9ef9-092afa0b3845/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p22.c[1266,1279] [2023-11-21 22:05:12,070 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:05:12,096 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:05:12,114 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_d028894c-0759-4edb-9ef9-092afa0b3845/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p22.c[1266,1279] [2023-11-21 22:05:12,227 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:05:12,254 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:05:12,255 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:12 WrapperNode [2023-11-21 22:05:12,255 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:05:12,256 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:05:12,257 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:05:12,257 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:05:12,265 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:12" (1/1) ... [2023-11-21 22:05:12,297 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:12" (1/1) ... [2023-11-21 22:05:12,382 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 470 [2023-11-21 22:05:12,383 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:05:12,384 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:05:12,385 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:05:12,385 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:05:12,397 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:12" (1/1) ... [2023-11-21 22:05:12,398 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:12" (1/1) ... [2023-11-21 22:05:12,414 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:12" (1/1) ... [2023-11-21 22:05:12,462 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 22:05:12,463 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:12" (1/1) ... [2023-11-21 22:05:12,463 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:12" (1/1) ... [2023-11-21 22:05:12,493 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:12" (1/1) ... [2023-11-21 22:05:12,507 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:12" (1/1) ... [2023-11-21 22:05:12,509 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:12" (1/1) ... [2023-11-21 22:05:12,527 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:12" (1/1) ... [2023-11-21 22:05:12,538 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:05:12,539 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:05:12,539 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:05:12,539 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:05:12,540 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:12" (1/1) ... [2023-11-21 22:05:12,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:05:12,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d028894c-0759-4edb-9ef9-092afa0b3845/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:05:12,591 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d028894c-0759-4edb-9ef9-092afa0b3845/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:05:12,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d028894c-0759-4edb-9ef9-092afa0b3845/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:05:12,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:05:12,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-21 22:05:12,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:05:12,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:05:12,862 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:05:12,865 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:05:13,398 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:05:13,452 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:05:13,452 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 22:05:13,454 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:05:13 BoogieIcfgContainer [2023-11-21 22:05:13,454 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:05:13,457 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:05:13,457 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:05:13,460 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:05:13,460 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:05:11" (1/3) ... [2023-11-21 22:05:13,461 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d3b0c51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:05:13, skipping insertion in model container [2023-11-21 22:05:13,461 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:12" (2/3) ... [2023-11-21 22:05:13,462 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d3b0c51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:05:13, skipping insertion in model container [2023-11-21 22:05:13,462 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:05:13" (3/3) ... [2023-11-21 22:05:13,463 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p22.c [2023-11-21 22:05:13,485 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:05:13,485 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 22:05:13,533 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:05:13,540 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;@2ca3c53b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:05:13,540 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 22:05:13,546 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:13,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-21 22:05:13,554 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:05:13,554 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-21 22:05:13,555 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:05:13,563 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:05:13,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2023-11-21 22:05:13,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:05:13,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1563449679] [2023-11-21 22:05:13,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:05:13,581 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 [2023-11-21 22:05:13,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d028894c-0759-4edb-9ef9-092afa0b3845/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:05:13,587 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d028894c-0759-4edb-9ef9-092afa0b3845/bin/uautomizer-verify-bycVGegfSx/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) [2023-11-21 22:05:13,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d028894c-0759-4edb-9ef9-092afa0b3845/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:05:13,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:05:13,789 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-21 22:05:13,796 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:05:14,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:05:14,095 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:05:14,097 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:05:14,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1563449679] [2023-11-21 22:05:14,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1563449679] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:05:14,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:05:14,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:05:14,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795196723] [2023-11-21 22:05:14,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:05:14,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:05:14,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:05:14,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:05:14,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:05:14,157 INFO L87 Difference]: Start difference. First operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) 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) [2023-11-21 22:05:14,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:05:14,249 INFO L93 Difference]: Finished difference Result 15 states and 20 transitions. [2023-11-21 22:05:14,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:05:14,251 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 [2023-11-21 22:05:14,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:05:14,260 INFO L225 Difference]: With dead ends: 15 [2023-11-21 22:05:14,260 INFO L226 Difference]: Without dead ends: 9 [2023-11-21 22:05:14,263 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 [2023-11-21 22:05:14,268 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 [2023-11-21 22:05:14,270 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] [2023-11-21 22:05:14,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-11-21 22:05:14,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2023-11-21 22:05:14,306 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) [2023-11-21 22:05:14,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2023-11-21 22:05:14,309 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2023-11-21 22:05:14,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:05:14,310 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2023-11-21 22:05:14,310 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) [2023-11-21 22:05:14,310 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2023-11-21 22:05:14,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-21 22:05:14,311 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:05:14,311 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2023-11-21 22:05:14,318 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d028894c-0759-4edb-9ef9-092afa0b3845/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-21 22:05:14,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d028894c-0759-4edb-9ef9-092afa0b3845/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:05:14,514 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:05:14,515 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:05:14,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1393329571, now seen corresponding path program 1 times [2023-11-21 22:05:14,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:05:14,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [163839726] [2023-11-21 22:05:14,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:05:14,518 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 [2023-11-21 22:05:14,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d028894c-0759-4edb-9ef9-092afa0b3845/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:05:14,520 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d028894c-0759-4edb-9ef9-092afa0b3845/bin/uautomizer-verify-bycVGegfSx/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) [2023-11-21 22:05:14,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d028894c-0759-4edb-9ef9-092afa0b3845/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:05:14,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:05:14,821 INFO L262 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-21 22:05:14,828 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:05:15,047 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:05:15,048 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:05:18,623 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:05:18,623 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:05:18,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [163839726] [2023-11-21 22:05:18,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [163839726] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:05:18,624 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 22:05:18,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-21 22:05:18,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897227161] [2023-11-21 22:05:18,625 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 22:05:18,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-21 22:05:18,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:05:18,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-21 22:05:18,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=37, Unknown=1, NotChecked=0, Total=56 [2023-11-21 22:05:18,628 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) [2023-11-21 22:05:19,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:05:19,218 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2023-11-21 22:05:19,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-21 22:05:19,219 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 [2023-11-21 22:05:19,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:05:19,220 INFO L225 Difference]: With dead ends: 14 [2023-11-21 22:05:19,220 INFO L226 Difference]: Without dead ends: 12 [2023-11-21 22:05:19,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=33, Invalid=56, Unknown=1, NotChecked=0, Total=90 [2023-11-21 22:05:19,222 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 6 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-21 22:05:19,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 9 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-21 22:05:19,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2023-11-21 22:05:19,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2023-11-21 22:05:19,227 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) [2023-11-21 22:05:19,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2023-11-21 22:05:19,227 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 7 [2023-11-21 22:05:19,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:05:19,228 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2023-11-21 22:05:19,228 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) [2023-11-21 22:05:19,228 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2023-11-21 22:05:19,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-21 22:05:19,229 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:05:19,229 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1] [2023-11-21 22:05:19,238 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d028894c-0759-4edb-9ef9-092afa0b3845/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:05:19,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d028894c-0759-4edb-9ef9-092afa0b3845/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:05:19,433 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:05:19,433 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:05:19,433 INFO L85 PathProgramCache]: Analyzing trace with hash -2112524529, now seen corresponding path program 2 times [2023-11-21 22:05:19,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:05:19,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1964759768] [2023-11-21 22:05:19,435 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-21 22:05:19,435 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 [2023-11-21 22:05:19,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d028894c-0759-4edb-9ef9-092afa0b3845/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:05:19,451 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d028894c-0759-4edb-9ef9-092afa0b3845/bin/uautomizer-verify-bycVGegfSx/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) [2023-11-21 22:05:19,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d028894c-0759-4edb-9ef9-092afa0b3845/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:05:20,007 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-21 22:05:20,007 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 22:05:20,021 INFO L262 TraceCheckSpWp]: Trace formula consists of 558 conjuncts, 51 conjunts are in the unsatisfiable core [2023-11-21 22:05:20,028 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:05:21,619 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:05:21,620 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:05:35,823 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse14 ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_1~0#1|))) (let ((.cse18 (forall ((|v_ULTIMATE.start_main_~var_105_arg_1~0#1_17| (_ BitVec 8))) (= ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_105_arg_1~0#1_17|))) .cse14)) (_ bv0 8)))) (.cse19 (= |c_ULTIMATE.start_main_~state_44~0#1| (_ bv0 8)))) (let ((.cse12 (or .cse18 .cse19)) (.cse13 (not .cse19)) (.cse23 (forall ((|v_ULTIMATE.start_main_~var_25_arg_0~0#1_17| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_20_arg_1~0#1_17| (_ BitVec 8))) (= ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_20_arg_1~0#1_17|) (_ bv0 32))))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_25_arg_0~0#1_17|)))) .cse14)) (_ bv0 8)))) (.cse24 (forall ((|v_ULTIMATE.start_main_~var_25_arg_0~0#1_17| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_20_arg_1~0#1_17| (_ BitVec 8))) (= ((_ extract 7 0) (bvand .cse14 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_20_arg_1~0#1_17|) (_ bv1 32))))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_25_arg_0~0#1_17|)))))) (_ bv0 8)))) (.cse20 (forall ((|v_ULTIMATE.start_main_~var_105_arg_1~0#1_17| (_ BitVec 8))) (not (= ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_105_arg_1~0#1_17|))) .cse14)) (_ bv0 8)))))) (let ((.cse15 (or .cse20 .cse19)) (.cse6 (and (or (forall ((|v_ULTIMATE.start_main_~var_80_arg_1~0#1_16| (_ BitVec 8)) (|ULTIMATE.start_main_~mask_SORT_3~0#1| (_ BitVec 8))) (= |c_ULTIMATE.start_main_~var_12~0#1| ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_80_arg_1~0#1_16|))) ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_3~0#1|)))))) .cse23) (or .cse24 (forall ((|v_ULTIMATE.start_main_~var_80_arg_1~0#1_16| (_ BitVec 8)) (|ULTIMATE.start_main_~mask_SORT_3~0#1| (_ BitVec 8))) (not (= |c_ULTIMATE.start_main_~var_12~0#1| ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_80_arg_1~0#1_16|))) ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_3~0#1|)))))))))) (.cse7 (and .cse12 (or .cse13 (forall ((|v_ULTIMATE.start_main_~var_104_arg_2~0#1_17| (_ BitVec 8))) (= ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_104_arg_2~0#1_17|))))) .cse14)) (_ bv0 8))))))) (let ((.cse9 (= |c_ULTIMATE.start_main_~state_46~0#1| (_ bv0 8))) (.cse21 (or .cse6 .cse7)) (.cse11 (and (or .cse24 (forall ((|v_ULTIMATE.start_main_~var_80_arg_1~0#1_17| (_ BitVec 8)) (|ULTIMATE.start_main_~mask_SORT_3~0#1| (_ BitVec 8))) (not (= ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_80_arg_1~0#1_17|))))) ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_3~0#1|)))) |c_ULTIMATE.start_main_~var_12~0#1|)))) (or (forall ((|v_ULTIMATE.start_main_~var_80_arg_1~0#1_17| (_ BitVec 8)) (|ULTIMATE.start_main_~mask_SORT_3~0#1| (_ BitVec 8))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_80_arg_1~0#1_17|))))) ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_3~0#1|)))) |c_ULTIMATE.start_main_~var_12~0#1|)) .cse23))) (.cse2 (and .cse15 (or .cse13 (forall ((|v_ULTIMATE.start_main_~var_104_arg_2~0#1_17| (_ BitVec 8))) (not (= ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_104_arg_2~0#1_17|))))) .cse14)) (_ bv0 8))))))) (.cse3 (= ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_44~0#1|) ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_14~0#1|)))) (let ((.cse16 (= |c_ULTIMATE.start_main_~state_65~0#1| (_ bv0 8))) (.cse4 (not .cse3)) (.cse10 (and .cse21 (or .cse11 .cse2))) (.cse0 (not .cse9)) (.cse1 (let ((.cse22 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_8~0#1|))))))) (and (or (forall ((|ULTIMATE.start_main_~mask_SORT_3~0#1| (_ BitVec 8))) (= |c_ULTIMATE.start_main_~var_12~0#1| ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse22 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_3~0#1|)))))) .cse23) (or .cse24 (forall ((|ULTIMATE.start_main_~mask_SORT_3~0#1| (_ BitVec 8))) (not (= |c_ULTIMATE.start_main_~var_12~0#1| ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse22 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_3~0#1|)))))))))))) (and (or (let ((.cse5 (and .cse15 (or .cse13 (forall ((|v_ULTIMATE.start_main_~var_102_arg_1~0#1_17| (_ BitVec 8))) (not (= ((_ extract 7 0) (bvand .cse14 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_102_arg_1~0#1_17|))))))))) (_ bv0 8))))))) (.cse8 (and .cse12 (or .cse13 (forall ((|v_ULTIMATE.start_main_~var_102_arg_1~0#1_17| (_ BitVec 8))) (= ((_ extract 7 0) (bvand .cse14 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_102_arg_1~0#1_17|))))))))) (_ bv0 8))))))) (and (or .cse0 (and (or .cse1 (and (or .cse2 .cse3) (or .cse4 .cse5))) (or .cse6 (and (or .cse3 .cse7) (or .cse4 .cse8))))) (or .cse9 (and (or .cse10 .cse3) (or .cse4 (and (or .cse11 .cse5) (or .cse6 .cse8))))))) .cse16) (or (not .cse16) (and (or .cse4 (and (or (let ((.cse17 (= ((_ extract 7 0) (bvand .cse14 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_46~0#1|))))))))) (_ bv0 8)))) (and (or .cse6 (and .cse12 (or .cse17 .cse13))) (or .cse11 (and (or .cse13 (not .cse17)) .cse15)))) .cse9) (or .cse0 (and (or .cse6 .cse18 .cse19) (or .cse1 (and .cse20 .cse13)))))) (or (and (or .cse10 .cse9) (or .cse0 (and .cse21 (or .cse1 .cse2)))) .cse3)))))))))) is different from false [2023-11-21 22:05:44,487 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 5 not checked. [2023-11-21 22:05:44,487 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:05:44,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1964759768] [2023-11-21 22:05:44,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1964759768] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:05:44,511 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 22:05:44,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-21 22:05:44,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76327559] [2023-11-21 22:05:44,513 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 22:05:44,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-21 22:05:44,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:05:44,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-21 22:05:44,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=48, Unknown=2, NotChecked=14, Total=90 [2023-11-21 22:05:44,534 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand has 10 states, 10 states have (on average 1.9) internal successors, (19), 9 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:45,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:05:45,621 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2023-11-21 22:05:45,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-21 22:05:45,621 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 9 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-11-21 22:05:45,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:05:45,622 INFO L225 Difference]: With dead ends: 17 [2023-11-21 22:05:45,622 INFO L226 Difference]: Without dead ends: 15 [2023-11-21 22:05:45,623 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=52, Invalid=82, Unknown=2, NotChecked=20, Total=156 [2023-11-21 22:05:45,624 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 8 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 9 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-21 22:05:45,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 16 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 9 Unchecked, 0.4s Time] [2023-11-21 22:05:45,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-11-21 22:05:45,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2023-11-21 22:05:45,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 13 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:45,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2023-11-21 22:05:45,629 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 10 [2023-11-21 22:05:45,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:05:45,630 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2023-11-21 22:05:45,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 9 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:45,630 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2023-11-21 22:05:45,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-21 22:05:45,630 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:05:45,631 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1] [2023-11-21 22:05:45,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d028894c-0759-4edb-9ef9-092afa0b3845/bin/uautomizer-verify-bycVGegfSx/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)] Forceful destruction successful, exit code 0 [2023-11-21 22:05:45,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d028894c-0759-4edb-9ef9-092afa0b3845/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:05:45,836 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:05:45,837 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:05:45,837 INFO L85 PathProgramCache]: Analyzing trace with hash -57678563, now seen corresponding path program 3 times [2023-11-21 22:05:45,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:05:45,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1552094568] [2023-11-21 22:05:45,839 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-21 22:05:45,839 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 [2023-11-21 22:05:45,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d028894c-0759-4edb-9ef9-092afa0b3845/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:05:45,840 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d028894c-0759-4edb-9ef9-092afa0b3845/bin/uautomizer-verify-bycVGegfSx/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) [2023-11-21 22:05:45,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d028894c-0759-4edb-9ef9-092afa0b3845/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-21 22:05:46,245 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-11-21 22:05:46,245 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 22:05:46,259 INFO L262 TraceCheckSpWp]: Trace formula consists of 558 conjuncts, 74 conjunts are in the unsatisfiable core [2023-11-21 22:05:46,268 INFO L285 TraceCheckSpWp]: Computing forward predicates...