./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p14.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_5b05e436-d7b0-4759-b5d2-c8cc921f3063/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b05e436-d7b0-4759-b5d2-c8cc921f3063/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b05e436-d7b0-4759-b5d2-c8cc921f3063/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b05e436-d7b0-4759-b5d2-c8cc921f3063/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p14.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b05e436-d7b0-4759-b5d2-c8cc921f3063/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b05e436-d7b0-4759-b5d2-c8cc921f3063/bin/uautomizer-verify-uCwYo4JHxu --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 6941340a217c21b00eedda9dba2fb93b4ff9d5189cb3951c1318a65ece342f1e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:05:12,886 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:05:13,008 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b05e436-d7b0-4759-b5d2-c8cc921f3063/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-19 08:05:13,019 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:05:13,022 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:05:13,051 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:05:13,051 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:05:13,052 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:05:13,053 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 08:05:13,054 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 08:05:13,055 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:05:13,056 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:05:13,056 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:05:13,057 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:05:13,058 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 08:05:13,058 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 08:05:13,059 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:05:13,060 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 08:05:13,060 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 08:05:13,061 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 08:05:13,062 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 08:05:13,062 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:05:13,063 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:05:13,064 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:05:13,064 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 08:05:13,065 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:05:13,066 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:05:13,066 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 08:05:13,067 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 08:05:13,067 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 08:05:13,068 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 08:05:13,068 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 08:05:13,069 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 08:05:13,069 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 08:05:13,070 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 08:05:13,070 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 08:05:13,071 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_5b05e436-d7b0-4759-b5d2-c8cc921f3063/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b05e436-d7b0-4759-b5d2-c8cc921f3063/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6941340a217c21b00eedda9dba2fb93b4ff9d5189cb3951c1318a65ece342f1e [2023-11-19 08:05:13,324 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:05:13,357 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:05:13,359 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:05:13,361 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:05:13,362 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:05:13,363 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b05e436-d7b0-4759-b5d2-c8cc921f3063/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p14.c [2023-11-19 08:05:16,654 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:05:16,885 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:05:16,896 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b05e436-d7b0-4759-b5d2-c8cc921f3063/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p14.c [2023-11-19 08:05:16,910 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b05e436-d7b0-4759-b5d2-c8cc921f3063/bin/uautomizer-verify-uCwYo4JHxu/data/dcb863502/217fdefa902c43b2a83578cee1bf20af/FLAGa09d10f6c [2023-11-19 08:05:16,925 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b05e436-d7b0-4759-b5d2-c8cc921f3063/bin/uautomizer-verify-uCwYo4JHxu/data/dcb863502/217fdefa902c43b2a83578cee1bf20af [2023-11-19 08:05:16,927 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:05:16,929 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:05:16,931 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:05:16,931 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:05:16,936 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:05:16,936 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:05:16" (1/1) ... [2023-11-19 08:05:16,938 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@538ca021 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:16, skipping insertion in model container [2023-11-19 08:05:16,938 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:05:16" (1/1) ... [2023-11-19 08:05:16,996 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:05:17,197 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_5b05e436-d7b0-4759-b5d2-c8cc921f3063/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p14.c[1266,1279] [2023-11-19 08:05:17,372 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:05:17,384 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:05:17,397 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_5b05e436-d7b0-4759-b5d2-c8cc921f3063/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p14.c[1266,1279] [2023-11-19 08:05:17,488 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:05:17,509 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:05:17,509 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:17 WrapperNode [2023-11-19 08:05:17,509 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:05:17,511 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:05:17,511 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:05:17,511 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:05:17,520 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:17" (1/1) ... [2023-11-19 08:05:17,544 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:17" (1/1) ... [2023-11-19 08:05:17,645 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 772 [2023-11-19 08:05:17,645 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:05:17,646 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:05:17,646 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:05:17,647 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:05:17,658 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:17" (1/1) ... [2023-11-19 08:05:17,659 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:17" (1/1) ... [2023-11-19 08:05:17,706 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:17" (1/1) ... [2023-11-19 08:05:17,706 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:17" (1/1) ... [2023-11-19 08:05:17,767 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:17" (1/1) ... [2023-11-19 08:05:17,790 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:17" (1/1) ... [2023-11-19 08:05:17,798 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:17" (1/1) ... [2023-11-19 08:05:17,836 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:17" (1/1) ... [2023-11-19 08:05:17,861 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:05:17,862 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:05:17,862 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:05:17,862 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:05:17,863 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:17" (1/1) ... [2023-11-19 08:05:17,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:05:17,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b05e436-d7b0-4759-b5d2-c8cc921f3063/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:05:17,905 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b05e436-d7b0-4759-b5d2-c8cc921f3063/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 08:05:17,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b05e436-d7b0-4759-b5d2-c8cc921f3063/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 08:05:17,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:05:17,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 08:05:17,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:05:17,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:05:18,174 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:05:18,180 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:05:19,207 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:05:19,217 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:05:19,217 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 08:05:19,228 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:05:19 BoogieIcfgContainer [2023-11-19 08:05:19,228 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:05:19,231 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 08:05:19,231 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 08:05:19,235 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 08:05:19,235 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:05:16" (1/3) ... [2023-11-19 08:05:19,236 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3de76877 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:05:19, skipping insertion in model container [2023-11-19 08:05:19,237 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:17" (2/3) ... [2023-11-19 08:05:19,239 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3de76877 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:05:19, skipping insertion in model container [2023-11-19 08:05:19,240 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:05:19" (3/3) ... [2023-11-19 08:05:19,242 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p14.c [2023-11-19 08:05:19,263 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 08:05:19,263 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 08:05:19,334 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:05:19,343 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;@3866565, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:05:19,344 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 08:05:19,350 INFO L276 IsEmpty]: Start isEmpty. Operand has 107 states, 105 states have (on average 1.6476190476190475) internal successors, (173), 106 states have internal predecessors, (173), 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) [2023-11-19 08:05:19,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-19 08:05:19,361 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:05:19,362 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:05:19,363 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:05:19,372 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:05:19,372 INFO L85 PathProgramCache]: Analyzing trace with hash -140115078, now seen corresponding path program 1 times [2023-11-19 08:05:19,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:05:19,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903056707] [2023-11-19 08:05:19,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:05:19,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:05:19,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:20,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:05:20,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:05:20,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903056707] [2023-11-19 08:05:20,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903056707] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:05:20,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:05:20,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 08:05:20,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779461718] [2023-11-19 08:05:20,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:05:20,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:05:20,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:05:20,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:05:20,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:05:20,198 INFO L87 Difference]: Start difference. First operand has 107 states, 105 states have (on average 1.6476190476190475) internal successors, (173), 106 states have internal predecessors, (173), 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 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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) [2023-11-19 08:05:20,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:05:20,303 INFO L93 Difference]: Finished difference Result 174 states and 284 transitions. [2023-11-19 08:05:20,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:05:20,306 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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 39 [2023-11-19 08:05:20,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:05:20,317 INFO L225 Difference]: With dead ends: 174 [2023-11-19 08:05:20,317 INFO L226 Difference]: Without dead ends: 105 [2023-11-19 08:05:20,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:05:20,329 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 1 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:05:20,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 489 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:05:20,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2023-11-19 08:05:20,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2023-11-19 08:05:20,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 104 states have (on average 1.625) internal successors, (169), 104 states have internal predecessors, (169), 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) [2023-11-19 08:05:20,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 169 transitions. [2023-11-19 08:05:20,397 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 169 transitions. Word has length 39 [2023-11-19 08:05:20,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:05:20,398 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 169 transitions. [2023-11-19 08:05:20,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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) [2023-11-19 08:05:20,399 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 169 transitions. [2023-11-19 08:05:20,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-19 08:05:20,403 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:05:20,403 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:05:20,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 08:05:20,404 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:05:20,405 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:05:20,406 INFO L85 PathProgramCache]: Analyzing trace with hash -46874970, now seen corresponding path program 1 times [2023-11-19 08:05:20,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:05:20,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877760575] [2023-11-19 08:05:20,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:05:20,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:05:20,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:20,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:05:20,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:05:20,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877760575] [2023-11-19 08:05:20,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877760575] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:05:20,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:05:20,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 08:05:20,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624298448] [2023-11-19 08:05:20,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:05:20,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:05:20,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:05:20,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:05:20,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:05:20,703 INFO L87 Difference]: Start difference. First operand 105 states and 169 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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) [2023-11-19 08:05:20,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:05:20,764 INFO L93 Difference]: Finished difference Result 175 states and 280 transitions. [2023-11-19 08:05:20,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:05:20,764 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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 40 [2023-11-19 08:05:20,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:05:20,770 INFO L225 Difference]: With dead ends: 175 [2023-11-19 08:05:20,770 INFO L226 Difference]: Without dead ends: 108 [2023-11-19 08:05:20,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:05:20,778 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 1 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:05:20,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 486 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:05:20,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2023-11-19 08:05:20,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 107. [2023-11-19 08:05:20,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 106 states have (on average 1.6132075471698113) internal successors, (171), 106 states have internal predecessors, (171), 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) [2023-11-19 08:05:20,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 171 transitions. [2023-11-19 08:05:20,795 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 171 transitions. Word has length 40 [2023-11-19 08:05:20,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:05:20,796 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 171 transitions. [2023-11-19 08:05:20,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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) [2023-11-19 08:05:20,796 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 171 transitions. [2023-11-19 08:05:20,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-19 08:05:20,798 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:05:20,798 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:05:20,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 08:05:20,799 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:05:20,800 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:05:20,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1663556332, now seen corresponding path program 1 times [2023-11-19 08:05:20,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:05:20,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560085128] [2023-11-19 08:05:20,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:05:20,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:05:20,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:21,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:05:21,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:05:21,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560085128] [2023-11-19 08:05:21,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560085128] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:05:21,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:05:21,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 08:05:21,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109831214] [2023-11-19 08:05:21,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:05:21,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:05:21,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:05:21,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:05:21,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:05:21,317 INFO L87 Difference]: Start difference. First operand 107 states and 171 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:05:21,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:05:21,371 INFO L93 Difference]: Finished difference Result 183 states and 291 transitions. [2023-11-19 08:05:21,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:05:21,371 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2023-11-19 08:05:21,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:05:21,373 INFO L225 Difference]: With dead ends: 183 [2023-11-19 08:05:21,373 INFO L226 Difference]: Without dead ends: 114 [2023-11-19 08:05:21,374 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:05:21,375 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 205 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:05:21,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 309 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:05:21,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2023-11-19 08:05:21,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 107. [2023-11-19 08:05:21,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 106 states have (on average 1.6037735849056605) internal successors, (170), 106 states have internal predecessors, (170), 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) [2023-11-19 08:05:21,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 170 transitions. [2023-11-19 08:05:21,383 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 170 transitions. Word has length 41 [2023-11-19 08:05:21,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:05:21,383 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 170 transitions. [2023-11-19 08:05:21,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:05:21,384 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 170 transitions. [2023-11-19 08:05:21,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-19 08:05:21,386 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:05:21,386 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:05:21,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 08:05:21,386 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:05:21,387 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:05:21,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1569268236, now seen corresponding path program 1 times [2023-11-19 08:05:21,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:05:21,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608355073] [2023-11-19 08:05:21,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:05:21,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:05:21,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:21,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:05:21,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:05:21,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608355073] [2023-11-19 08:05:21,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608355073] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:05:21,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:05:21,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 08:05:21,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459341388] [2023-11-19 08:05:21,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:05:21,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 08:05:21,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:05:21,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 08:05:21,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:05:21,813 INFO L87 Difference]: Start difference. First operand 107 states and 170 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:05:21,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:05:21,875 INFO L93 Difference]: Finished difference Result 247 states and 388 transitions. [2023-11-19 08:05:21,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 08:05:21,875 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2023-11-19 08:05:21,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:05:21,877 INFO L225 Difference]: With dead ends: 247 [2023-11-19 08:05:21,877 INFO L226 Difference]: Without dead ends: 178 [2023-11-19 08:05:21,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-19 08:05:21,879 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 330 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:05:21,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 495 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:05:21,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2023-11-19 08:05:21,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 110. [2023-11-19 08:05:21,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 109 states have (on average 1.5871559633027523) internal successors, (173), 109 states have internal predecessors, (173), 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) [2023-11-19 08:05:21,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 173 transitions. [2023-11-19 08:05:21,902 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 173 transitions. Word has length 42 [2023-11-19 08:05:21,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:05:21,903 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 173 transitions. [2023-11-19 08:05:21,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:05:21,903 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 173 transitions. [2023-11-19 08:05:21,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-19 08:05:21,904 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:05:21,905 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:05:21,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 08:05:21,905 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:05:21,906 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:05:21,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1176241226, now seen corresponding path program 1 times [2023-11-19 08:05:21,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:05:21,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941018463] [2023-11-19 08:05:21,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:05:21,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:05:21,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:05:21,944 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:05:21,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:05:22,011 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:05:22,011 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 08:05:22,012 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 08:05:22,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 08:05:22,018 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-19 08:05:22,021 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 08:05:22,059 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-19 08:05:22,060 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-19 08:05:22,061 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet6 could not be translated [2023-11-19 08:05:22,061 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet7 could not be translated [2023-11-19 08:05:22,062 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated [2023-11-19 08:05:22,063 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet9 could not be translated [2023-11-19 08:05:22,063 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet10 could not be translated [2023-11-19 08:05:22,063 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet11 could not be translated [2023-11-19 08:05:22,064 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet13 could not be translated [2023-11-19 08:05:22,064 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet12 could not be translated [2023-11-19 08:05:22,065 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet15 could not be translated [2023-11-19 08:05:22,065 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet14 could not be translated [2023-11-19 08:05:22,066 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet16 could not be translated [2023-11-19 08:05:22,066 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet17 could not be translated [2023-11-19 08:05:22,067 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet18 could not be translated [2023-11-19 08:05:22,067 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet19 could not be translated [2023-11-19 08:05:22,068 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet20 could not be translated [2023-11-19 08:05:22,068 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet21 could not be translated [2023-11-19 08:05:22,069 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet22 could not be translated [2023-11-19 08:05:22,069 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet23 could not be translated [2023-11-19 08:05:22,070 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet24 could not be translated [2023-11-19 08:05:22,070 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet25 could not be translated [2023-11-19 08:05:22,071 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet27 could not be translated [2023-11-19 08:05:22,071 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet26 could not be translated [2023-11-19 08:05:22,074 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet56 could not be translated [2023-11-19 08:05:22,076 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet57 could not be translated [2023-11-19 08:05:22,078 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet58 could not be translated [2023-11-19 08:05:22,080 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet59 could not be translated [2023-11-19 08:05:22,081 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet60 could not be translated [2023-11-19 08:05:22,082 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-19 08:05:22,098 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:05:22 BoogieIcfgContainer [2023-11-19 08:05:22,099 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 08:05:22,099 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 08:05:22,099 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 08:05:22,100 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 08:05:22,100 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:05:19" (3/4) ... [2023-11-19 08:05:22,102 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 08:05:22,104 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 08:05:22,105 INFO L158 Benchmark]: Toolchain (without parser) took 5175.74ms. Allocated memory was 169.9MB in the beginning and 228.6MB in the end (delta: 58.7MB). Free memory was 125.8MB in the beginning and 164.7MB in the end (delta: -38.9MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. [2023-11-19 08:05:22,108 INFO L158 Benchmark]: CDTParser took 0.65ms. Allocated memory is still 117.4MB. Free memory was 66.1MB in the beginning and 66.0MB in the end (delta: 142.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:05:22,108 INFO L158 Benchmark]: CACSL2BoogieTranslator took 579.38ms. Allocated memory is still 169.9MB. Free memory was 125.5MB in the beginning and 104.8MB in the end (delta: 20.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-19 08:05:22,109 INFO L158 Benchmark]: Boogie Procedure Inliner took 134.81ms. Allocated memory is still 169.9MB. Free memory was 104.8MB in the beginning and 91.8MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 08:05:22,109 INFO L158 Benchmark]: Boogie Preprocessor took 215.09ms. Allocated memory is still 169.9MB. Free memory was 91.4MB in the beginning and 131.7MB in the end (delta: -40.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 08:05:22,110 INFO L158 Benchmark]: RCFGBuilder took 1366.42ms. Allocated memory is still 169.9MB. Free memory was 131.7MB in the beginning and 125.7MB in the end (delta: 6.0MB). Peak memory consumption was 64.6MB. Max. memory is 16.1GB. [2023-11-19 08:05:22,110 INFO L158 Benchmark]: TraceAbstraction took 2867.65ms. Allocated memory was 169.9MB in the beginning and 228.6MB in the end (delta: 58.7MB). Free memory was 124.8MB in the beginning and 164.7MB in the end (delta: -40.0MB). Peak memory consumption was 18.4MB. Max. memory is 16.1GB. [2023-11-19 08:05:22,110 INFO L158 Benchmark]: Witness Printer took 4.77ms. Allocated memory is still 228.6MB. Free memory is still 164.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:05:22,113 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.65ms. Allocated memory is still 117.4MB. Free memory was 66.1MB in the beginning and 66.0MB in the end (delta: 142.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 579.38ms. Allocated memory is still 169.9MB. Free memory was 125.5MB in the beginning and 104.8MB in the end (delta: 20.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 134.81ms. Allocated memory is still 169.9MB. Free memory was 104.8MB in the beginning and 91.8MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 215.09ms. Allocated memory is still 169.9MB. Free memory was 91.4MB in the beginning and 131.7MB in the end (delta: -40.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * RCFGBuilder took 1366.42ms. Allocated memory is still 169.9MB. Free memory was 131.7MB in the beginning and 125.7MB in the end (delta: 6.0MB). Peak memory consumption was 64.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2867.65ms. Allocated memory was 169.9MB in the beginning and 228.6MB in the end (delta: 58.7MB). Free memory was 124.8MB in the beginning and 164.7MB in the end (delta: -40.0MB). Peak memory consumption was 18.4MB. Max. memory is 16.1GB. * Witness Printer took 4.77ms. Allocated memory is still 228.6MB. Free memory is still 164.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet9 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet11 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet13 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet12 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet15 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet14 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet16 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet17 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet18 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet19 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet20 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet21 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet22 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet23 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet24 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet25 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet27 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet26 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet56 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet57 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet58 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet59 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet60 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 21]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 162. 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_32 mask_SORT_32 = (SORT_32)-1 >> (sizeof(SORT_32) * 8 - 4); [L36] const SORT_32 msb_SORT_32 = (SORT_32)1 << (4 - 1); [L38] const SORT_70 mask_SORT_70 = (SORT_70)-1 >> (sizeof(SORT_70) * 8 - 10); [L39] const SORT_70 msb_SORT_70 = (SORT_70)1 << (10 - 1); [L41] const SORT_1 var_7 = 0; [L42] const SORT_10 var_12 = 0; [L43] const SORT_1 var_22 = 1; [L44] const SORT_70 var_71 = 0; [L45] const SORT_10 var_95 = 104; [L46] const SORT_10 var_143 = 1; [L48] SORT_1 input_2; [L49] SORT_3 input_4; [L50] SORT_1 input_5; [L51] SORT_1 input_6; [L52] SORT_1 input_30; [L53] SORT_32 input_33; [L54] SORT_1 input_35; [L55] SORT_32 input_37; [L56] SORT_1 input_39; [L57] SORT_1 input_41; [L58] SORT_1 input_47; [L59] SORT_1 input_49; [L60] SORT_1 input_51; [L61] SORT_3 input_55; [L62] SORT_1 input_58; [L63] SORT_1 input_66; [L64] SORT_1 input_75; [L65] SORT_1 input_77; [L66] SORT_1 input_89; [L67] SORT_1 input_90; [L68] SORT_1 input_91; [L69] SORT_1 input_105; [L70] SORT_1 input_111; [L71] SORT_1 input_117; [L72] SORT_1 input_123; [L73] SORT_1 input_124; [L74] SORT_1 input_125; [L75] SORT_70 input_141; [L77] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_32=15, mask_SORT_3=255, mask_SORT_70=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_32=8, msb_SORT_3=128, msb_SORT_70=512, var_12=0, var_143=1, var_22=1, var_71=0, var_7=0, var_95=104] [L77] SORT_1 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L78] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_32=15, mask_SORT_3=255, mask_SORT_70=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_32=8, msb_SORT_3=128, msb_SORT_70=512, state_8=0, var_12=0, var_143=1, var_22=1, var_71=0, var_7=0, var_95=104] [L78] SORT_1 state_15 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L79] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_32=15, mask_SORT_3=255, mask_SORT_70=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_32=8, msb_SORT_3=128, msb_SORT_70=512, state_15=0, state_8=0, var_12=0, var_143=1, var_22=1, var_71=0, var_7=0, var_95=104] [L79] SORT_1 state_26 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L80] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_32=15, mask_SORT_3=255, mask_SORT_70=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_32=8, msb_SORT_3=128, msb_SORT_70=512, state_15=0, state_26=0, state_8=0, var_12=0, var_143=1, var_22=1, var_71=0, var_7=0, var_95=104] [L80] SORT_1 state_28 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L81] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_32=15, mask_SORT_3=255, mask_SORT_70=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_32=8, msb_SORT_3=128, msb_SORT_70=512, state_15=0, state_26=0, state_28=0, state_8=0, var_12=0, var_143=1, var_22=1, var_71=0, var_7=0, var_95=104] [L81] SORT_1 state_43 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L82] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_32=15, mask_SORT_3=255, mask_SORT_70=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_32=8, msb_SORT_3=128, msb_SORT_70=512, state_15=0, state_26=0, state_28=0, state_43=0, state_8=0, var_12=0, var_143=1, var_22=1, var_71=0, var_7=0, var_95=104] [L82] SORT_1 state_45 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L83] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_32=15, mask_SORT_3=255, mask_SORT_70=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_32=8, msb_SORT_3=128, msb_SORT_70=512, state_15=0, state_26=0, state_28=0, state_43=0, state_45=0, state_8=0, var_12=0, var_143=1, var_22=1, var_71=0, var_7=0, var_95=104] [L83] SORT_1 state_53 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L84] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_32=15, mask_SORT_3=255, mask_SORT_70=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_32=8, msb_SORT_3=128, msb_SORT_70=512, state_15=0, state_26=0, state_28=0, state_43=0, state_45=0, state_53=0, state_8=0, var_12=0, var_143=1, var_22=1, var_71=0, var_7=0, var_95=104] [L84] SORT_1 state_60 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L85] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_32=15, mask_SORT_3=255, mask_SORT_70=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_32=8, msb_SORT_3=128, msb_SORT_70=512, state_15=0, state_26=0, state_28=0, state_43=0, state_45=0, state_53=0, state_60=0, state_8=0, var_12=0, var_143=1, var_22=1, var_71=0, var_7=0, var_95=104] [L85] SORT_1 state_62 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L86] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_32=15, mask_SORT_3=255, mask_SORT_70=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_32=8, msb_SORT_3=128, msb_SORT_70=512, state_15=0, state_26=0, state_28=0, state_43=0, state_45=0, state_53=0, state_60=0, state_62=0, state_8=0, var_12=0, var_143=1, var_22=1, var_71=0, var_7=0, var_95=104] [L86] SORT_1 state_64 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L87] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_32=15, mask_SORT_3=255, mask_SORT_70=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_32=8, msb_SORT_3=128, msb_SORT_70=512, state_15=0, state_26=0, state_28=0, state_43=0, state_45=0, state_53=0, state_60=0, state_62=0, state_64=0, state_8=0, var_12=0, var_143=1, var_22=1, var_71=0, var_7=0, var_95=104] [L87] SORT_1 state_68 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L88] EXPR __VERIFIER_nondet_ushort() & mask_SORT_70 VAL [mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_32=15, mask_SORT_3=255, mask_SORT_70=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_32=8, msb_SORT_3=128, msb_SORT_70=512, state_15=0, state_26=0, state_28=0, state_43=0, state_45=0, state_53=0, state_60=0, state_62=0, state_64=0, state_68=0, state_8=0, var_12=0, var_143=1, var_22=1, var_71=0, var_7=0, var_95=104] [L88] SORT_70 state_72 = __VERIFIER_nondet_ushort() & mask_SORT_70; [L90] SORT_1 init_9_arg_1 = var_7; [L91] state_8 = init_9_arg_1 [L92] SORT_1 init_16_arg_1 = var_7; [L93] state_15 = init_16_arg_1 [L94] SORT_1 init_27_arg_1 = var_7; [L95] state_26 = init_27_arg_1 [L96] SORT_1 init_29_arg_1 = var_7; [L97] state_28 = init_29_arg_1 [L98] SORT_1 init_44_arg_1 = var_7; [L99] state_43 = init_44_arg_1 [L100] SORT_1 init_46_arg_1 = var_7; [L101] state_45 = init_46_arg_1 [L102] SORT_1 init_54_arg_1 = var_22; [L103] state_53 = init_54_arg_1 [L104] SORT_1 init_61_arg_1 = var_7; [L105] state_60 = init_61_arg_1 [L106] SORT_1 init_63_arg_1 = var_7; [L107] state_62 = init_63_arg_1 [L108] SORT_1 init_65_arg_1 = var_7; [L109] state_64 = init_65_arg_1 [L110] SORT_1 init_69_arg_1 = var_7; [L111] state_68 = init_69_arg_1 [L112] SORT_70 init_73_arg_1 = var_71; [L113] state_72 = init_73_arg_1 VAL [init_16_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_54_arg_1=1, init_61_arg_1=0, init_63_arg_1=0, init_65_arg_1=0, init_69_arg_1=0, init_73_arg_1=0, init_9_arg_1=0, mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_32=15, mask_SORT_3=255, mask_SORT_70=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_32=8, msb_SORT_3=128, msb_SORT_70=512, state_15=0, state_26=0, state_28=0, state_43=0, state_45=0, state_53=1, state_60=0, state_62=0, state_64=0, state_68=0, state_72=0, state_8=0, var_12=0, var_143=1, var_22=1, var_71=0, var_7=0, var_95=104] [L116] input_2 = __VERIFIER_nondet_uchar() [L117] input_4 = __VERIFIER_nondet_uchar() [L118] input_5 = __VERIFIER_nondet_uchar() [L119] input_6 = __VERIFIER_nondet_uchar() [L120] input_30 = __VERIFIER_nondet_uchar() [L121] input_33 = __VERIFIER_nondet_uchar() [L122] input_35 = __VERIFIER_nondet_uchar() [L123] input_37 = __VERIFIER_nondet_uchar() [L124] input_39 = __VERIFIER_nondet_uchar() [L125] input_41 = __VERIFIER_nondet_uchar() [L126] input_47 = __VERIFIER_nondet_uchar() [L127] input_49 = __VERIFIER_nondet_uchar() [L128] input_51 = __VERIFIER_nondet_uchar() [L129] input_55 = __VERIFIER_nondet_uchar() [L130] input_58 = __VERIFIER_nondet_uchar() [L131] input_66 = __VERIFIER_nondet_uchar() [L132] input_75 = __VERIFIER_nondet_uchar() [L133] input_77 = __VERIFIER_nondet_uchar() [L134] input_89 = __VERIFIER_nondet_uchar() [L135] input_90 = __VERIFIER_nondet_uchar() [L136] input_91 = __VERIFIER_nondet_uchar() [L137] input_105 = __VERIFIER_nondet_uchar() [L138] input_111 = __VERIFIER_nondet_uchar() [L139] input_117 = __VERIFIER_nondet_uchar() [L140] input_123 = __VERIFIER_nondet_uchar() [L141] input_124 = __VERIFIER_nondet_uchar() [L142] input_125 = __VERIFIER_nondet_uchar() [L143] input_141 = __VERIFIER_nondet_ushort() [L146] SORT_1 var_11_arg_0 = state_8; VAL [init_16_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_54_arg_1=1, init_61_arg_1=0, init_63_arg_1=0, init_65_arg_1=0, init_69_arg_1=0, init_73_arg_1=0, init_9_arg_1=0, mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_32=15, mask_SORT_3=255, mask_SORT_70=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_32=8, msb_SORT_3=128, msb_SORT_70=512, state_15=0, state_26=0, state_28=0, state_43=0, state_45=0, state_53=1, state_60=0, state_62=0, state_64=0, state_68=0, state_72=0, state_8=0, var_11_arg_0=0, var_12=0, var_143=1, var_22=1, var_71=0, var_7=0, var_95=104] [L147] EXPR var_11_arg_0 & mask_SORT_1 VAL [init_16_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_54_arg_1=1, init_61_arg_1=0, init_63_arg_1=0, init_65_arg_1=0, init_69_arg_1=0, init_73_arg_1=0, init_9_arg_1=0, mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_32=15, mask_SORT_3=255, mask_SORT_70=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_32=8, msb_SORT_3=128, msb_SORT_70=512, state_15=0, state_26=0, state_28=0, state_43=0, state_45=0, state_53=1, state_60=0, state_62=0, state_64=0, state_68=0, state_72=0, state_8=0, var_11_arg_0=0, var_12=0, var_143=1, var_22=1, var_71=0, var_7=0, var_95=104] [L147] var_11_arg_0 = var_11_arg_0 & mask_SORT_1 [L148] SORT_10 var_11 = var_11_arg_0; [L149] SORT_10 var_13_arg_0 = var_11; [L150] SORT_10 var_13_arg_1 = var_12; [L151] SORT_1 var_13 = var_13_arg_0 == var_13_arg_1; [L152] SORT_1 var_14_arg_0 = var_13; [L153] SORT_1 var_14 = ~var_14_arg_0; [L154] SORT_1 var_17_arg_0 = state_15; VAL [init_16_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_54_arg_1=1, init_61_arg_1=0, init_63_arg_1=0, init_65_arg_1=0, init_69_arg_1=0, init_73_arg_1=0, init_9_arg_1=0, mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_32=15, mask_SORT_3=255, mask_SORT_70=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_32=8, msb_SORT_3=128, msb_SORT_70=512, state_15=0, state_26=0, state_28=0, state_43=0, state_45=0, state_53=1, state_60=0, state_62=0, state_64=0, state_68=0, state_72=0, state_8=0, var_11=0, var_11_arg_0=0, var_12=0, var_13=1, var_13_arg_0=0, var_13_arg_1=0, var_143=1, var_14=254, var_14_arg_0=1, var_17_arg_0=0, var_22=1, var_71=0, var_7=0, var_95=104] [L155] EXPR var_17_arg_0 & mask_SORT_1 VAL [init_16_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_54_arg_1=1, init_61_arg_1=0, init_63_arg_1=0, init_65_arg_1=0, init_69_arg_1=0, init_73_arg_1=0, init_9_arg_1=0, mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_32=15, mask_SORT_3=255, mask_SORT_70=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_32=8, msb_SORT_3=128, msb_SORT_70=512, state_15=0, state_26=0, state_28=0, state_43=0, state_45=0, state_53=1, state_60=0, state_62=0, state_64=0, state_68=0, state_72=0, state_8=0, var_11=0, var_11_arg_0=0, var_12=0, var_13=1, var_13_arg_0=0, var_13_arg_1=0, var_143=1, var_14=254, var_14_arg_0=1, var_17_arg_0=0, var_22=1, var_71=0, var_7=0, var_95=104] [L155] var_17_arg_0 = var_17_arg_0 & mask_SORT_1 [L156] SORT_10 var_17 = var_17_arg_0; [L157] SORT_10 var_18_arg_0 = var_17; [L158] SORT_10 var_18_arg_1 = var_12; [L159] SORT_1 var_18 = var_18_arg_0 == var_18_arg_1; [L160] SORT_1 var_19_arg_0 = var_14; [L161] SORT_1 var_19_arg_1 = var_18; VAL [init_16_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_54_arg_1=1, init_61_arg_1=0, init_63_arg_1=0, init_65_arg_1=0, init_69_arg_1=0, init_73_arg_1=0, init_9_arg_1=0, mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_32=15, mask_SORT_3=255, mask_SORT_70=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_32=8, msb_SORT_3=128, msb_SORT_70=512, state_15=0, state_26=0, state_28=0, state_43=0, state_45=0, state_53=1, state_60=0, state_62=0, state_64=0, state_68=0, state_72=0, state_8=0, var_11=0, var_11_arg_0=0, var_12=0, var_13=1, var_13_arg_0=0, var_13_arg_1=0, var_143=1, var_14=254, var_14_arg_0=1, var_17=0, var_17_arg_0=0, var_18=1, var_18_arg_0=0, var_18_arg_1=0, var_19_arg_0=254, var_19_arg_1=1, var_22=1, var_71=0, var_7=0, var_95=104] [L162] EXPR var_19_arg_0 | var_19_arg_1 VAL [init_16_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_54_arg_1=1, init_61_arg_1=0, init_63_arg_1=0, init_65_arg_1=0, init_69_arg_1=0, init_73_arg_1=0, init_9_arg_1=0, mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_32=15, mask_SORT_3=255, mask_SORT_70=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_32=8, msb_SORT_3=128, msb_SORT_70=512, state_15=0, state_26=0, state_28=0, state_43=0, state_45=0, state_53=1, state_60=0, state_62=0, state_64=0, state_68=0, state_72=0, state_8=0, var_11=0, var_11_arg_0=0, var_12=0, var_13=1, var_13_arg_0=0, var_13_arg_1=0, var_143=1, var_14=254, var_14_arg_0=1, var_17=0, var_17_arg_0=0, var_18=1, var_18_arg_0=0, var_18_arg_1=0, var_19_arg_0=254, var_19_arg_1=1, var_22=1, var_71=0, var_7=0, var_95=104] [L162] SORT_1 var_19 = var_19_arg_0 | var_19_arg_1; [L163] SORT_1 var_23_arg_0 = var_19; [L164] SORT_1 var_23 = ~var_23_arg_0; [L165] SORT_1 var_24_arg_0 = var_22; [L166] SORT_1 var_24_arg_1 = var_23; VAL [init_16_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_54_arg_1=1, init_61_arg_1=0, init_63_arg_1=0, init_65_arg_1=0, init_69_arg_1=0, init_73_arg_1=0, init_9_arg_1=0, mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_32=15, mask_SORT_3=255, mask_SORT_70=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_32=8, msb_SORT_3=128, msb_SORT_70=512, state_15=0, state_26=0, state_28=0, state_43=0, state_45=0, state_53=1, state_60=0, state_62=0, state_64=0, state_68=0, state_72=0, state_8=0, var_11=0, var_11_arg_0=0, var_12=0, var_13=1, var_13_arg_0=0, var_13_arg_1=0, var_143=1, var_14=254, var_14_arg_0=1, var_17=0, var_17_arg_0=0, var_18=1, var_18_arg_0=0, var_18_arg_1=0, var_19=254, var_19_arg_0=254, var_19_arg_1=1, var_22=1, var_23=1, var_23_arg_0=254, var_24_arg_0=1, var_24_arg_1=1, var_71=0, var_7=0, var_95=104] [L167] EXPR var_24_arg_0 & var_24_arg_1 VAL [init_16_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_54_arg_1=1, init_61_arg_1=0, init_63_arg_1=0, init_65_arg_1=0, init_69_arg_1=0, init_73_arg_1=0, init_9_arg_1=0, mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_32=15, mask_SORT_3=255, mask_SORT_70=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_32=8, msb_SORT_3=128, msb_SORT_70=512, state_15=0, state_26=0, state_28=0, state_43=0, state_45=0, state_53=1, state_60=0, state_62=0, state_64=0, state_68=0, state_72=0, state_8=0, var_11=0, var_11_arg_0=0, var_12=0, var_13=1, var_13_arg_0=0, var_13_arg_1=0, var_143=1, var_14=254, var_14_arg_0=1, var_17=0, var_17_arg_0=0, var_18=1, var_18_arg_0=0, var_18_arg_1=0, var_19=254, var_19_arg_0=254, var_19_arg_1=1, var_22=1, var_23=1, var_23_arg_0=254, var_24_arg_0=1, var_24_arg_1=1, var_71=0, var_7=0, var_95=104] [L167] SORT_1 var_24 = var_24_arg_0 & var_24_arg_1; [L168] EXPR var_24 & mask_SORT_1 VAL [init_16_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_54_arg_1=1, init_61_arg_1=0, init_63_arg_1=0, init_65_arg_1=0, init_69_arg_1=0, init_73_arg_1=0, init_9_arg_1=0, mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_32=15, mask_SORT_3=255, mask_SORT_70=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_32=8, msb_SORT_3=128, msb_SORT_70=512, state_15=0, state_26=0, state_28=0, state_43=0, state_45=0, state_53=1, state_60=0, state_62=0, state_64=0, state_68=0, state_72=0, state_8=0, var_11=0, var_11_arg_0=0, var_12=0, var_13=1, var_13_arg_0=0, var_13_arg_1=0, var_143=1, var_14=254, var_14_arg_0=1, var_17=0, var_17_arg_0=0, var_18=1, var_18_arg_0=0, var_18_arg_1=0, var_19=254, var_19_arg_0=254, var_19_arg_1=1, var_22=1, var_23=1, var_23_arg_0=254, var_24=1, var_24_arg_0=1, var_24_arg_1=1, var_71=0, var_7=0, var_95=104] [L168] var_24 = var_24 & mask_SORT_1 [L169] SORT_1 bad_25_arg_0 = var_24; [L170] CALL __VERIFIER_assert(!(bad_25_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, 107 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.7s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 537 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 537 mSDsluCounter, 1779 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1106 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 55 IncrementalHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 673 mSDtfsCounter, 55 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=110occurred in iteration=4, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 76 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 204 NumberOfCodeBlocks, 204 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 158 ConstructedInterpolants, 0 QuantifiedInterpolants, 309 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 [2023-11-19 08:05:22,167 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b05e436-d7b0-4759-b5d2-c8cc921f3063/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b05e436-d7b0-4759-b5d2-c8cc921f3063/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b05e436-d7b0-4759-b5d2-c8cc921f3063/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b05e436-d7b0-4759-b5d2-c8cc921f3063/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b05e436-d7b0-4759-b5d2-c8cc921f3063/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p14.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b05e436-d7b0-4759-b5d2-c8cc921f3063/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b05e436-d7b0-4759-b5d2-c8cc921f3063/bin/uautomizer-verify-uCwYo4JHxu --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 6941340a217c21b00eedda9dba2fb93b4ff9d5189cb3951c1318a65ece342f1e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:05:24,948 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:05:25,081 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b05e436-d7b0-4759-b5d2-c8cc921f3063/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2023-11-19 08:05:25,091 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:05:25,092 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:05:25,137 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:05:25,137 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:05:25,138 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:05:25,139 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 08:05:25,144 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 08:05:25,145 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:05:25,145 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:05:25,146 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:05:25,148 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:05:25,148 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 08:05:25,149 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:05:25,149 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 08:05:25,149 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 08:05:25,150 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 08:05:25,151 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 08:05:25,151 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 08:05:25,152 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 08:05:25,152 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 08:05:25,153 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:05:25,153 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:05:25,153 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:05:25,154 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 08:05:25,154 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:05:25,155 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:05:25,155 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 08:05:25,156 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 08:05:25,157 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-19 08:05:25,157 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 08:05:25,157 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 08:05:25,158 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 08:05:25,158 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 08:05:25,158 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 08:05:25,158 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-19 08:05:25,158 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 08:05:25,159 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_5b05e436-d7b0-4759-b5d2-c8cc921f3063/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b05e436-d7b0-4759-b5d2-c8cc921f3063/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6941340a217c21b00eedda9dba2fb93b4ff9d5189cb3951c1318a65ece342f1e [2023-11-19 08:05:25,540 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:05:25,560 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:05:25,563 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:05:25,565 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:05:25,565 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:05:25,567 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b05e436-d7b0-4759-b5d2-c8cc921f3063/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p14.c [2023-11-19 08:05:28,759 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:05:29,059 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:05:29,059 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b05e436-d7b0-4759-b5d2-c8cc921f3063/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p14.c [2023-11-19 08:05:29,073 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b05e436-d7b0-4759-b5d2-c8cc921f3063/bin/uautomizer-verify-uCwYo4JHxu/data/80b3a2c21/05158f1f5e3e4e16896a3081f0f6c1ef/FLAG65a86b6ea [2023-11-19 08:05:29,090 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b05e436-d7b0-4759-b5d2-c8cc921f3063/bin/uautomizer-verify-uCwYo4JHxu/data/80b3a2c21/05158f1f5e3e4e16896a3081f0f6c1ef [2023-11-19 08:05:29,093 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:05:29,094 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:05:29,096 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:05:29,096 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:05:29,102 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:05:29,103 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:05:29" (1/1) ... [2023-11-19 08:05:29,104 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a913a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:29, skipping insertion in model container [2023-11-19 08:05:29,105 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:05:29" (1/1) ... [2023-11-19 08:05:29,154 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:05:29,365 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_5b05e436-d7b0-4759-b5d2-c8cc921f3063/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p14.c[1266,1279] [2023-11-19 08:05:29,557 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:05:29,571 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:05:29,586 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_5b05e436-d7b0-4759-b5d2-c8cc921f3063/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p14.c[1266,1279] [2023-11-19 08:05:29,646 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:05:29,662 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:05:29,663 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:29 WrapperNode [2023-11-19 08:05:29,663 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:05:29,664 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:05:29,665 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:05:29,665 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:05:29,673 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:29" (1/1) ... [2023-11-19 08:05:29,692 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:29" (1/1) ... [2023-11-19 08:05:29,798 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 452 [2023-11-19 08:05:29,805 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:05:29,806 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:05:29,808 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:05:29,808 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:05:29,818 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:29" (1/1) ... [2023-11-19 08:05:29,818 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:29" (1/1) ... [2023-11-19 08:05:29,843 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:29" (1/1) ... [2023-11-19 08:05:29,843 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:29" (1/1) ... [2023-11-19 08:05:29,873 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:29" (1/1) ... [2023-11-19 08:05:29,878 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:29" (1/1) ... [2023-11-19 08:05:29,894 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:29" (1/1) ... [2023-11-19 08:05:29,898 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:29" (1/1) ... [2023-11-19 08:05:29,904 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:05:29,905 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:05:29,905 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:05:29,905 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:05:29,906 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:29" (1/1) ... [2023-11-19 08:05:29,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:05:29,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b05e436-d7b0-4759-b5d2-c8cc921f3063/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:05:29,941 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b05e436-d7b0-4759-b5d2-c8cc921f3063/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 08:05:29,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b05e436-d7b0-4759-b5d2-c8cc921f3063/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 08:05:29,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:05:29,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 08:05:29,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:05:29,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:05:30,185 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:05:30,187 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:05:30,718 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:05:30,726 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:05:30,726 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 08:05:30,730 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:05:30 BoogieIcfgContainer [2023-11-19 08:05:30,730 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:05:30,732 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 08:05:30,733 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 08:05:30,736 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 08:05:30,738 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:05:29" (1/3) ... [2023-11-19 08:05:30,739 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@229cd144 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:05:30, skipping insertion in model container [2023-11-19 08:05:30,740 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:29" (2/3) ... [2023-11-19 08:05:30,740 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@229cd144 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:05:30, skipping insertion in model container [2023-11-19 08:05:30,741 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:05:30" (3/3) ... [2023-11-19 08:05:30,742 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p14.c [2023-11-19 08:05:30,769 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 08:05:30,770 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 08:05:30,823 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:05:30,831 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;@6e7cf116, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:05:30,831 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 08:05:30,836 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 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) [2023-11-19 08:05:30,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 08:05:30,843 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:05:30,843 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 08:05:30,844 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:05:30,850 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:05:30,850 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2023-11-19 08:05:30,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 08:05:30,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1261844403] [2023-11-19 08:05:30,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:05:30,871 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 [2023-11-19 08:05:30,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b05e436-d7b0-4759-b5d2-c8cc921f3063/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 08:05:30,876 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b05e436-d7b0-4759-b5d2-c8cc921f3063/bin/uautomizer-verify-uCwYo4JHxu/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) [2023-11-19 08:05:30,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b05e436-d7b0-4759-b5d2-c8cc921f3063/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 08:05:31,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:31,111 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-19 08:05:31,122 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:05:31,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:05:31,413 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:05:31,413 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 08:05:31,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1261844403] [2023-11-19 08:05:31,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1261844403] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:05:31,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:05:31,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 08:05:31,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893720627] [2023-11-19 08:05:31,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:05:31,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:05:31,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 08:05:31,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:05:31,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:05:31,484 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 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) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:05:31,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:05:31,576 INFO L93 Difference]: Finished difference Result 19 states and 27 transitions. [2023-11-19 08:05:31,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:05:31,579 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-19 08:05:31,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:05:31,587 INFO L225 Difference]: With dead ends: 19 [2023-11-19 08:05:31,587 INFO L226 Difference]: Without dead ends: 10 [2023-11-19 08:05:31,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:05:31,595 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 3 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 08:05:31,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 11 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 08:05:31,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2023-11-19 08:05:31,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2023-11-19 08:05:31,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:05:31,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2023-11-19 08:05:31,632 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2023-11-19 08:05:31,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:05:31,632 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2023-11-19 08:05:31,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:05:31,633 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2023-11-19 08:05:31,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 08:05:31,634 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:05:31,634 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2023-11-19 08:05:31,641 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b05e436-d7b0-4759-b5d2-c8cc921f3063/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-11-19 08:05:31,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b05e436-d7b0-4759-b5d2-c8cc921f3063/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 08:05:31,837 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:05:31,838 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:05:31,838 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2023-11-19 08:05:31,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 08:05:31,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1955994617] [2023-11-19 08:05:31,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:05:31,840 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 [2023-11-19 08:05:31,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b05e436-d7b0-4759-b5d2-c8cc921f3063/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 08:05:31,842 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b05e436-d7b0-4759-b5d2-c8cc921f3063/bin/uautomizer-verify-uCwYo4JHxu/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) [2023-11-19 08:05:31,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b05e436-d7b0-4759-b5d2-c8cc921f3063/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 08:05:32,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:32,198 INFO L262 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-19 08:05:32,205 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:05:32,402 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:05:32,403 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:05:32,945 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:05:32,945 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 08:05:32,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1955994617] [2023-11-19 08:05:32,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1955994617] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 08:05:32,947 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 08:05:32,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-19 08:05:32,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068096155] [2023-11-19 08:05:32,950 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 08:05:32,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 08:05:32,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 08:05:32,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 08:05:32,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-19 08:05:32,953 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:05:33,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:05:33,144 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2023-11-19 08:05:33,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 08:05:33,145 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-19 08:05:33,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:05:33,146 INFO L225 Difference]: With dead ends: 15 [2023-11-19 08:05:33,146 INFO L226 Difference]: Without dead ends: 13 [2023-11-19 08:05:33,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2023-11-19 08:05:33,148 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 12 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 08:05:33,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 17 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 08:05:33,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2023-11-19 08:05:33,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2023-11-19 08:05:33,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:05:33,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2023-11-19 08:05:33,153 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2023-11-19 08:05:33,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:05:33,154 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2023-11-19 08:05:33,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:05:33,154 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2023-11-19 08:05:33,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 08:05:33,155 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:05:33,155 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-11-19 08:05:33,160 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b05e436-d7b0-4759-b5d2-c8cc921f3063/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 08:05:33,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b05e436-d7b0-4759-b5d2-c8cc921f3063/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 08:05:33,360 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:05:33,361 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:05:33,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2023-11-19 08:05:33,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 08:05:33,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1668483596] [2023-11-19 08:05:33,363 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 08:05:33,363 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 [2023-11-19 08:05:33,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b05e436-d7b0-4759-b5d2-c8cc921f3063/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 08:05:33,366 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b05e436-d7b0-4759-b5d2-c8cc921f3063/bin/uautomizer-verify-uCwYo4JHxu/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) [2023-11-19 08:05:33,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b05e436-d7b0-4759-b5d2-c8cc921f3063/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 08:05:33,832 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-19 08:05:33,832 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 08:05:33,846 INFO L262 TraceCheckSpWp]: Trace formula consists of 533 conjuncts, 37 conjunts are in the unsatisfiable core [2023-11-19 08:05:33,854 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:05:34,149 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:05:34,150 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:05:36,076 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:05:36,076 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 08:05:36,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1668483596] [2023-11-19 08:05:36,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1668483596] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 08:05:36,077 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 08:05:36,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-11-19 08:05:36,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54401995] [2023-11-19 08:05:36,078 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 08:05:36,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 08:05:36,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 08:05:36,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 08:05:36,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-19 08:05:36,080 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:05:36,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:05:36,305 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2023-11-19 08:05:36,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 08:05:36,306 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-11-19 08:05:36,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:05:36,307 INFO L225 Difference]: With dead ends: 18 [2023-11-19 08:05:36,307 INFO L226 Difference]: Without dead ends: 16 [2023-11-19 08:05:36,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2023-11-19 08:05:36,309 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 7 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 08:05:36,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 27 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 08:05:36,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2023-11-19 08:05:36,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2023-11-19 08:05:36,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 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) [2023-11-19 08:05:36,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2023-11-19 08:05:36,315 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2023-11-19 08:05:36,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:05:36,315 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2023-11-19 08:05:36,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:05:36,316 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2023-11-19 08:05:36,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-19 08:05:36,316 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:05:36,317 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2023-11-19 08:05:36,324 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b05e436-d7b0-4759-b5d2-c8cc921f3063/bin/uautomizer-verify-uCwYo4JHxu/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)] Ended with exit code 0 [2023-11-19 08:05:36,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b05e436-d7b0-4759-b5d2-c8cc921f3063/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 08:05:36,524 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:05:36,525 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:05:36,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 3 times [2023-11-19 08:05:36,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 08:05:36,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1340144259] [2023-11-19 08:05:36,527 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-19 08:05:36,527 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 [2023-11-19 08:05:36,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b05e436-d7b0-4759-b5d2-c8cc921f3063/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 08:05:36,528 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b05e436-d7b0-4759-b5d2-c8cc921f3063/bin/uautomizer-verify-uCwYo4JHxu/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) [2023-11-19 08:05:36,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b05e436-d7b0-4759-b5d2-c8cc921f3063/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 08:05:36,818 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-19 08:05:36,818 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 08:05:36,826 INFO L262 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 41 conjunts are in the unsatisfiable core [2023-11-19 08:05:36,835 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:05:37,453 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-19 08:05:37,453 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:05:38,480 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-19 08:05:38,480 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 08:05:38,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1340144259] [2023-11-19 08:05:38,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1340144259] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 08:05:38,482 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 08:05:38,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-19 08:05:38,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121903250] [2023-11-19 08:05:38,482 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 08:05:38,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 08:05:38,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 08:05:38,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 08:05:38,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-19 08:05:38,487 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 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) [2023-11-19 08:05:38,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:05:38,551 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2023-11-19 08:05:38,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:05:38,554 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 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 14 [2023-11-19 08:05:38,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:05:38,554 INFO L225 Difference]: With dead ends: 15 [2023-11-19 08:05:38,554 INFO L226 Difference]: Without dead ends: 0 [2023-11-19 08:05:38,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2023-11-19 08:05:38,556 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 4 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:05:38,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 8 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:05:38,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-19 08:05:38,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-19 08:05:38,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2023-11-19 08:05:38,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-19 08:05:38,559 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2023-11-19 08:05:38,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:05:38,559 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 08:05:38,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 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) [2023-11-19 08:05:38,560 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-19 08:05:38,560 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 08:05:38,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 08:05:38,576 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b05e436-d7b0-4759-b5d2-c8cc921f3063/bin/uautomizer-verify-uCwYo4JHxu/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)] Forceful destruction successful, exit code 0 [2023-11-19 08:05:38,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b05e436-d7b0-4759-b5d2-c8cc921f3063/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 08:05:38,769 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-19 08:05:38,819 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-19 08:05:38,820 INFO L899 garLoopResultBuilder]: For program point L21(line 21) no Hoare annotation was computed. [2023-11-19 08:05:38,820 INFO L899 garLoopResultBuilder]: For program point L21-1(line 21) no Hoare annotation was computed. [2023-11-19 08:05:38,820 INFO L899 garLoopResultBuilder]: For program point L21-3(line 21) no Hoare annotation was computed. [2023-11-19 08:05:38,821 INFO L895 garLoopResultBuilder]: At program point L114-2(lines 114 391) the Hoare annotation is: (and (= (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_1~0#1|) (= |ULTIMATE.start_main_~var_7~0#1| (_ bv0 8)) (= (_ bv0 8) |ULTIMATE.start_main_~state_15~0#1|) (= |ULTIMATE.start_main_~var_12~0#1| (_ bv0 32))) [2023-11-19 08:05:38,821 INFO L899 garLoopResultBuilder]: For program point L114-3(lines 114 391) no Hoare annotation was computed. [2023-11-19 08:05:38,821 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-19 08:05:38,821 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 23 393) no Hoare annotation was computed. [2023-11-19 08:05:38,821 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-19 08:05:38,822 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-19 08:05:38,822 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 21) no Hoare annotation was computed. [2023-11-19 08:05:38,828 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1] [2023-11-19 08:05:38,831 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 08:05:38,842 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:05:38 BoogieIcfgContainer [2023-11-19 08:05:38,842 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 08:05:38,843 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 08:05:38,843 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 08:05:38,843 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 08:05:38,844 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:05:30" (3/4) ... [2023-11-19 08:05:38,846 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 08:05:38,874 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-19 08:05:38,875 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-19 08:05:38,876 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 08:05:38,878 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 08:05:39,031 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b05e436-d7b0-4759-b5d2-c8cc921f3063/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 08:05:39,032 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b05e436-d7b0-4759-b5d2-c8cc921f3063/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 08:05:39,032 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 08:05:39,033 INFO L158 Benchmark]: Toolchain (without parser) took 9938.45ms. Allocated memory was 102.8MB in the beginning and 230.7MB in the end (delta: 127.9MB). Free memory was 78.0MB in the beginning and 163.3MB in the end (delta: -85.3MB). Peak memory consumption was 44.5MB. Max. memory is 16.1GB. [2023-11-19 08:05:39,033 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 73.4MB. Free memory is still 50.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:05:39,034 INFO L158 Benchmark]: CACSL2BoogieTranslator took 567.28ms. Allocated memory is still 102.8MB. Free memory was 77.8MB in the beginning and 58.3MB in the end (delta: 19.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-19 08:05:39,034 INFO L158 Benchmark]: Boogie Procedure Inliner took 141.05ms. Allocated memory is still 102.8MB. Free memory was 58.3MB in the beginning and 79.7MB in the end (delta: -21.4MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2023-11-19 08:05:39,035 INFO L158 Benchmark]: Boogie Preprocessor took 98.04ms. Allocated memory is still 102.8MB. Free memory was 79.3MB in the beginning and 76.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 08:05:39,035 INFO L158 Benchmark]: RCFGBuilder took 825.30ms. Allocated memory is still 102.8MB. Free memory was 76.8MB in the beginning and 64.6MB in the end (delta: 12.2MB). Peak memory consumption was 27.9MB. Max. memory is 16.1GB. [2023-11-19 08:05:39,036 INFO L158 Benchmark]: TraceAbstraction took 8109.87ms. Allocated memory was 102.8MB in the beginning and 230.7MB in the end (delta: 127.9MB). Free memory was 63.9MB in the beginning and 172.7MB in the end (delta: -108.9MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. [2023-11-19 08:05:39,036 INFO L158 Benchmark]: Witness Printer took 189.41ms. Allocated memory is still 230.7MB. Free memory was 172.7MB in the beginning and 163.3MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 08:05:39,039 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 73.4MB. Free memory is still 50.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 567.28ms. Allocated memory is still 102.8MB. Free memory was 77.8MB in the beginning and 58.3MB in the end (delta: 19.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 141.05ms. Allocated memory is still 102.8MB. Free memory was 58.3MB in the beginning and 79.7MB in the end (delta: -21.4MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 98.04ms. Allocated memory is still 102.8MB. Free memory was 79.3MB in the beginning and 76.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 825.30ms. Allocated memory is still 102.8MB. Free memory was 76.8MB in the beginning and 64.6MB in the end (delta: 12.2MB). Peak memory consumption was 27.9MB. Max. memory is 16.1GB. * TraceAbstraction took 8109.87ms. Allocated memory was 102.8MB in the beginning and 230.7MB in the end (delta: 127.9MB). Free memory was 63.9MB in the beginning and 172.7MB in the end (delta: -108.9MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. * Witness Printer took 189.41ms. Allocated memory is still 230.7MB. Free memory was 172.7MB in the beginning and 163.3MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. 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 - PositiveResult [Line: 21]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.0s, OverallIterations: 4, TraceHistogramMax: 4, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 26 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 26 mSDsluCounter, 63 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 49 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 51 IncrementalHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 14 mSDtfsCounter, 51 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=3, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 4 NumberOfFragments, 13 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 36 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 5.0s InterpolantComputationTime, 38 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 64 ConstructedInterpolants, 21 QuantifiedInterpolants, 4833 SizeOfPredicates, 125 NumberOfNonLiveVariables, 1220 ConjunctsInSsa, 123 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 18/48 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 114]: Loop Invariant Derived loop invariant: ((((1 == mask_SORT_1) && (var_7 == 0)) && (0 == state_15)) && (var_12 == 0)) RESULT: Ultimate proved your program to be correct! [2023-11-19 08:05:39,094 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b05e436-d7b0-4759-b5d2-c8cc921f3063/bin/uautomizer-verify-uCwYo4JHxu/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 Writing output log to file Ultimate.log Result: TRUE