./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pipeline.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 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_408fbe83-058e-4a52-badb-a117aad53623/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_408fbe83-058e-4a52-badb-a117aad53623/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_408fbe83-058e-4a52-badb-a117aad53623/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_408fbe83-058e-4a52-badb-a117aad53623/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pipeline.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_408fbe83-058e-4a52-badb-a117aad53623/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_408fbe83-058e-4a52-badb-a117aad53623/bin/uautomizer-verify-zZY32mL2XJ --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 5a1c69a049a9608f95ac90730c4f7554434241d21538bbd7cbbae38e9a8e04bb --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:40:58,403 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:40:58,519 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_408fbe83-058e-4a52-badb-a117aad53623/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-23 21:40:58,526 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:40:58,526 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:40:58,553 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:40:58,554 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:40:58,555 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:40:58,556 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 21:40:58,556 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 21:40:58,557 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:40:58,558 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:40:58,559 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 21:40:58,559 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 21:40:58,560 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 21:40:58,561 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:40:58,562 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:40:58,562 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:40:58,563 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:40:58,563 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:40:58,564 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:40:58,565 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:40:58,566 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:40:58,566 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:40:58,567 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:40:58,568 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:40:58,568 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:40:58,574 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:40:58,574 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:40:58,575 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:40:58,575 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:40:58,576 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:40:58,576 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 21:40:58,576 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:40:58,577 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:40:58,577 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 21:40:58,578 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:40:58,578 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 21:40:58,579 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:40:58,579 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_408fbe83-058e-4a52-badb-a117aad53623/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_408fbe83-058e-4a52-badb-a117aad53623/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a1c69a049a9608f95ac90730c4f7554434241d21538bbd7cbbae38e9a8e04bb [2023-11-23 21:40:58,971 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:40:59,014 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:40:59,018 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:40:59,020 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:40:59,021 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:40:59,022 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_408fbe83-058e-4a52-badb-a117aad53623/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pipeline.c [2023-11-23 21:41:02,365 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:41:02,608 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:41:02,609 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_408fbe83-058e-4a52-badb-a117aad53623/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pipeline.c [2023-11-23 21:41:02,621 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_408fbe83-058e-4a52-badb-a117aad53623/bin/uautomizer-verify-zZY32mL2XJ/data/1d4c34489/e9529301d6834133aa2a58274dcc1d47/FLAG68b8351ba [2023-11-23 21:41:02,640 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_408fbe83-058e-4a52-badb-a117aad53623/bin/uautomizer-verify-zZY32mL2XJ/data/1d4c34489/e9529301d6834133aa2a58274dcc1d47 [2023-11-23 21:41:02,644 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:41:02,646 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:41:02,647 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:41:02,648 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:41:02,655 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:41:02,656 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:41:02" (1/1) ... [2023-11-23 21:41:02,658 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72a421de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:41:02, skipping insertion in model container [2023-11-23 21:41:02,658 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:41:02" (1/1) ... [2023-11-23 21:41:02,697 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:41:02,958 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_408fbe83-058e-4a52-badb-a117aad53623/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pipeline.c[1248,1261] [2023-11-23 21:41:03,015 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:41:03,031 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:41:03,046 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_408fbe83-058e-4a52-badb-a117aad53623/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pipeline.c[1248,1261] [2023-11-23 21:41:03,082 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:41:03,105 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:41:03,106 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:41:03 WrapperNode [2023-11-23 21:41:03,106 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:41:03,107 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:41:03,108 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:41:03,108 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:41:03,119 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:41:03" (1/1) ... [2023-11-23 21:41:03,129 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:41:03" (1/1) ... [2023-11-23 21:41:03,189 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 216 [2023-11-23 21:41:03,189 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:41:03,190 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:41:03,190 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:41:03,191 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:41:03,205 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:41:03" (1/1) ... [2023-11-23 21:41:03,220 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:41:03" (1/1) ... [2023-11-23 21:41:03,226 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:41:03" (1/1) ... [2023-11-23 21:41:03,244 INFO L189 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-23 21:41:03,245 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:41:03" (1/1) ... [2023-11-23 21:41:03,245 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:41:03" (1/1) ... [2023-11-23 21:41:03,256 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:41:03" (1/1) ... [2023-11-23 21:41:03,262 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:41:03" (1/1) ... [2023-11-23 21:41:03,269 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:41:03" (1/1) ... [2023-11-23 21:41:03,272 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:41:03" (1/1) ... [2023-11-23 21:41:03,278 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:41:03,279 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:41:03,279 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:41:03,279 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:41:03,280 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:41:03" (1/1) ... [2023-11-23 21:41:03,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:41:03,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_408fbe83-058e-4a52-badb-a117aad53623/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:41:03,342 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_408fbe83-058e-4a52-badb-a117aad53623/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:41:03,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_408fbe83-058e-4a52-badb-a117aad53623/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:41:03,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:41:03,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 21:41:03,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:41:03,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:41:03,553 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:41:03,556 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:41:04,019 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:41:04,073 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:41:04,073 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:41:04,073 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:41:04 BoogieIcfgContainer [2023-11-23 21:41:04,074 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:41:04,076 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:41:04,077 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:41:04,080 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:41:04,081 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:41:02" (1/3) ... [2023-11-23 21:41:04,082 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32e48c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:41:04, skipping insertion in model container [2023-11-23 21:41:04,082 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:41:03" (2/3) ... [2023-11-23 21:41:04,083 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32e48c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:41:04, skipping insertion in model container [2023-11-23 21:41:04,083 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:41:04" (3/3) ... [2023-11-23 21:41:04,084 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.pipeline.c [2023-11-23 21:41:04,125 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:41:04,125 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:41:04,203 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:41:04,211 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;@6cbf23b4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:41:04,211 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:41:04,217 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 42 states have (on average 1.6666666666666667) internal successors, (70), 43 states have internal predecessors, (70), 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) [2023-11-23 21:41:04,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-23 21:41:04,226 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:41:04,227 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:41:04,228 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:41:04,234 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:41:04,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1705540335, now seen corresponding path program 1 times [2023-11-23 21:41:04,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:41:04,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623716793] [2023-11-23 21:41:04,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:41:04,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:41:04,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:41:04,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:41:04,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:41:04,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623716793] [2023-11-23 21:41:04,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623716793] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:41:04,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:41:04,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:41:04,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192415306] [2023-11-23 21:41:04,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:41:04,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:41:04,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:41:05,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:41:05,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:41:05,033 INFO L87 Difference]: Start difference. First operand has 44 states, 42 states have (on average 1.6666666666666667) internal successors, (70), 43 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2023-11-23 21:41:05,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:41:05,116 INFO L93 Difference]: Finished difference Result 72 states and 116 transitions. [2023-11-23 21:41:05,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:41:05,119 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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 22 [2023-11-23 21:41:05,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:41:05,129 INFO L225 Difference]: With dead ends: 72 [2023-11-23 21:41:05,129 INFO L226 Difference]: Without dead ends: 44 [2023-11-23 21:41:05,133 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 [2023-11-23 21:41:05,139 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 1 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:41:05,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 184 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:41:05,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2023-11-23 21:41:05,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2023-11-23 21:41:05,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.5813953488372092) internal successors, (68), 43 states have internal predecessors, (68), 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) [2023-11-23 21:41:05,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 68 transitions. [2023-11-23 21:41:05,186 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 68 transitions. Word has length 22 [2023-11-23 21:41:05,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:41:05,188 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 68 transitions. [2023-11-23 21:41:05,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2023-11-23 21:41:05,189 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 68 transitions. [2023-11-23 21:41:05,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-23 21:41:05,190 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:41:05,191 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] [2023-11-23 21:41:05,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:41:05,191 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:41:05,192 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:41:05,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1330417777, now seen corresponding path program 1 times [2023-11-23 21:41:05,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:41:05,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320426911] [2023-11-23 21:41:05,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:41:05,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:41:05,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:41:05,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:41:05,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:41:05,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320426911] [2023-11-23 21:41:05,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320426911] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:41:05,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:41:05,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:41:05,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183435420] [2023-11-23 21:41:05,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:41:05,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:41:05,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:41:05,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:41:05,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:41:05,451 INFO L87 Difference]: Start difference. First operand 44 states and 68 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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) [2023-11-23 21:41:05,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:41:05,513 INFO L93 Difference]: Finished difference Result 75 states and 114 transitions. [2023-11-23 21:41:05,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:41:05,515 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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 23 [2023-11-23 21:41:05,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:41:05,520 INFO L225 Difference]: With dead ends: 75 [2023-11-23 21:41:05,520 INFO L226 Difference]: Without dead ends: 47 [2023-11-23 21:41:05,522 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 [2023-11-23 21:41:05,524 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 1 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:41:05,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 182 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:41:05,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2023-11-23 21:41:05,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 46. [2023-11-23 21:41:05,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.5555555555555556) internal successors, (70), 45 states have internal predecessors, (70), 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) [2023-11-23 21:41:05,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 70 transitions. [2023-11-23 21:41:05,537 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 70 transitions. Word has length 23 [2023-11-23 21:41:05,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:41:05,538 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 70 transitions. [2023-11-23 21:41:05,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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) [2023-11-23 21:41:05,538 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 70 transitions. [2023-11-23 21:41:05,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-23 21:41:05,540 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:41:05,540 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] [2023-11-23 21:41:05,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:41:05,540 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:41:05,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:41:05,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1496289515, now seen corresponding path program 1 times [2023-11-23 21:41:05,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:41:05,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458562618] [2023-11-23 21:41:05,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:41:05,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:41:05,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:41:05,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:41:05,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:41:05,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458562618] [2023-11-23 21:41:05,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458562618] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:41:05,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:41:05,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:41:05,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482250339] [2023-11-23 21:41:05,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:41:05,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 21:41:05,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:41:05,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 21:41:05,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:41:05,977 INFO L87 Difference]: Start difference. First operand 46 states and 70 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 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) [2023-11-23 21:41:06,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:41:06,150 INFO L93 Difference]: Finished difference Result 110 states and 164 transitions. [2023-11-23 21:41:06,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 21:41:06,151 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 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 24 [2023-11-23 21:41:06,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:41:06,157 INFO L225 Difference]: With dead ends: 110 [2023-11-23 21:41:06,158 INFO L226 Difference]: Without dead ends: 80 [2023-11-23 21:41:06,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-11-23 21:41:06,167 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 126 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:41:06,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 220 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:41:06,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2023-11-23 21:41:06,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 49. [2023-11-23 21:41:06,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.5208333333333333) internal successors, (73), 48 states have internal predecessors, (73), 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) [2023-11-23 21:41:06,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 73 transitions. [2023-11-23 21:41:06,187 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 73 transitions. Word has length 24 [2023-11-23 21:41:06,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:41:06,189 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 73 transitions. [2023-11-23 21:41:06,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 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) [2023-11-23 21:41:06,190 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 73 transitions. [2023-11-23 21:41:06,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-23 21:41:06,192 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:41:06,193 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] [2023-11-23 21:41:06,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 21:41:06,194 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:41:06,194 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:41:06,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1023670419, now seen corresponding path program 1 times [2023-11-23 21:41:06,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:41:06,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405957355] [2023-11-23 21:41:06,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:41:06,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:41:06,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:41:06,264 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:41:06,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:41:06,364 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:41:06,365 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:41:06,366 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:41:06,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 21:41:06,371 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-23 21:41:06,375 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:41:06,405 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-23 21:41:06,406 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-23 21:41:06,407 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet7 could not be translated [2023-11-23 21:41:06,407 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet6 could not be translated [2023-11-23 21:41:06,407 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet9 could not be translated [2023-11-23 21:41:06,408 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated [2023-11-23 21:41:06,408 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet11 could not be translated [2023-11-23 21:41:06,409 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet10 could not be translated [2023-11-23 21:41:06,409 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet13 could not be translated [2023-11-23 21:41:06,409 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet12 could not be translated [2023-11-23 21:41:06,411 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet19 could not be translated [2023-11-23 21:41:06,414 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet20 could not be translated [2023-11-23 21:41:06,415 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet21 could not be translated [2023-11-23 21:41:06,416 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet22 could not be translated [2023-11-23 21:41:06,418 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-23 21:41:06,429 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:41:06 BoogieIcfgContainer [2023-11-23 21:41:06,430 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:41:06,430 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:41:06,430 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:41:06,431 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:41:06,431 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:41:04" (3/4) ... [2023-11-23 21:41:06,434 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 21:41:06,435 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:41:06,436 INFO L158 Benchmark]: Toolchain (without parser) took 3790.42ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 93.1MB in the beginning and 67.4MB in the end (delta: 25.7MB). Peak memory consumption was 55.8MB. Max. memory is 16.1GB. [2023-11-23 21:41:06,436 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 107.0MB. Free memory is still 59.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:41:06,437 INFO L158 Benchmark]: CACSL2BoogieTranslator took 459.05ms. Allocated memory is still 132.1MB. Free memory was 92.8MB in the beginning and 80.8MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-23 21:41:06,437 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.87ms. Allocated memory is still 132.1MB. Free memory was 80.8MB in the beginning and 77.4MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 21:41:06,438 INFO L158 Benchmark]: Boogie Preprocessor took 87.85ms. Allocated memory is still 132.1MB. Free memory was 77.4MB in the beginning and 74.6MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:41:06,438 INFO L158 Benchmark]: RCFGBuilder took 795.09ms. Allocated memory is still 132.1MB. Free memory was 74.6MB in the beginning and 101.2MB in the end (delta: -26.6MB). Peak memory consumption was 28.8MB. Max. memory is 16.1GB. [2023-11-23 21:41:06,439 INFO L158 Benchmark]: TraceAbstraction took 2353.44ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 100.5MB in the beginning and 67.4MB in the end (delta: 33.1MB). Peak memory consumption was 60.6MB. Max. memory is 16.1GB. [2023-11-23 21:41:06,439 INFO L158 Benchmark]: Witness Printer took 4.98ms. Allocated memory is still 159.4MB. Free memory is still 67.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:41:06,442 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 107.0MB. Free memory is still 59.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 459.05ms. Allocated memory is still 132.1MB. Free memory was 92.8MB in the beginning and 80.8MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.87ms. Allocated memory is still 132.1MB. Free memory was 80.8MB in the beginning and 77.4MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 87.85ms. Allocated memory is still 132.1MB. Free memory was 77.4MB in the beginning and 74.6MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 795.09ms. Allocated memory is still 132.1MB. Free memory was 74.6MB in the beginning and 101.2MB in the end (delta: -26.6MB). Peak memory consumption was 28.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2353.44ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 100.5MB in the beginning and 67.4MB in the end (delta: 33.1MB). Peak memory consumption was 60.6MB. Max. memory is 16.1GB. * Witness Printer took 4.98ms. Allocated memory is still 159.4MB. Free memory is still 67.4MB. 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~nondet7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet9 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet11 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet10 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~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 The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 21]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 83. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 32); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (32 - 1); [L29] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 1); [L30] const SORT_4 msb_SORT_4 = (SORT_4)1 << (1 - 1); [L32] const SORT_1 var_8 = 0; [L33] const SORT_4 var_21 = 1; [L35] SORT_1 input_2; [L36] SORT_1 input_3; [L37] SORT_4 input_5; [L38] SORT_1 input_6; [L39] SORT_4 input_7; [L41] EXPR __VERIFIER_nondet_uint() & mask_SORT_1 VAL [mask_SORT_1=4294967295, mask_SORT_4=1, msb_SORT_1=2147483648, msb_SORT_4=1, var_21=1, var_8=0] [L41] SORT_1 state_9 = __VERIFIER_nondet_uint() & mask_SORT_1; [L42] EXPR __VERIFIER_nondet_uint() & mask_SORT_1 VAL [mask_SORT_1=4294967295, mask_SORT_4=1, msb_SORT_1=2147483648, msb_SORT_4=1, state_9=0, var_21=1, var_8=0] [L42] SORT_1 state_11 = __VERIFIER_nondet_uint() & mask_SORT_1; [L43] EXPR __VERIFIER_nondet_uint() & mask_SORT_1 VAL [mask_SORT_1=4294967295, mask_SORT_4=1, msb_SORT_1=2147483648, msb_SORT_4=1, state_11=0, state_9=0, var_21=1, var_8=0] [L43] SORT_1 state_13 = __VERIFIER_nondet_uint() & mask_SORT_1; [L44] EXPR __VERIFIER_nondet_uint() & mask_SORT_1 VAL [mask_SORT_1=4294967295, mask_SORT_4=1, msb_SORT_1=2147483648, msb_SORT_4=1, state_11=0, state_13=0, state_9=0, var_21=1, var_8=0] [L44] SORT_1 state_26 = __VERIFIER_nondet_uint() & mask_SORT_1; [L45] EXPR __VERIFIER_nondet_uint() & mask_SORT_1 VAL [mask_SORT_1=4294967295, mask_SORT_4=1, msb_SORT_1=2147483648, msb_SORT_4=1, state_11=0, state_13=0, state_26=0, state_9=0, var_21=1, var_8=0] [L45] SORT_1 state_28 = __VERIFIER_nondet_uint() & mask_SORT_1; [L47] SORT_1 init_10_arg_1 = var_8; [L48] state_9 = init_10_arg_1 [L49] SORT_1 init_12_arg_1 = var_8; [L50] state_11 = init_12_arg_1 [L51] SORT_1 init_14_arg_1 = var_8; [L52] state_13 = init_14_arg_1 [L53] SORT_1 init_27_arg_1 = var_8; [L54] state_26 = init_27_arg_1 [L55] SORT_1 init_29_arg_1 = var_8; [L56] state_28 = init_29_arg_1 VAL [init_10_arg_1=0, init_12_arg_1=0, init_14_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, mask_SORT_1=4294967295, mask_SORT_4=1, msb_SORT_1=2147483648, msb_SORT_4=1, state_11=0, state_13=0, state_26=0, state_28=0, state_9=0, var_21=1, var_8=0] [L59] input_2 = __VERIFIER_nondet_uint() [L60] input_3 = __VERIFIER_nondet_uint() [L61] input_5 = __VERIFIER_nondet_uchar() [L62] input_6 = __VERIFIER_nondet_uint() [L63] input_7 = __VERIFIER_nondet_uchar() [L66] SORT_1 var_15_arg_0 = state_11; [L67] SORT_1 var_15_arg_1 = state_13; [L68] SORT_1 var_15 = var_15_arg_0 + var_15_arg_1; VAL [init_10_arg_1=0, init_12_arg_1=0, init_14_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, mask_SORT_1=4294967295, mask_SORT_4=1, msb_SORT_1=2147483648, msb_SORT_4=1, state_11=0, state_13=0, state_26=0, state_28=0, state_9=0, var_15=0, var_15_arg_0=0, var_15_arg_1=0, var_21=1, var_8=0] [L69] EXPR var_15 & mask_SORT_1 VAL [init_10_arg_1=0, init_12_arg_1=0, init_14_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, mask_SORT_1=4294967295, mask_SORT_4=1, msb_SORT_1=2147483648, msb_SORT_4=1, state_11=0, state_13=0, state_26=0, state_28=0, state_9=0, var_15=0, var_15_arg_0=0, var_15_arg_1=0, var_21=1, var_8=0] [L69] var_15 = var_15 & mask_SORT_1 [L70] SORT_1 var_16_arg_0 = state_9; [L71] SORT_1 var_16_arg_1 = var_15; [L72] SORT_4 var_16 = var_16_arg_0 == var_16_arg_1; [L73] SORT_1 var_17_arg_0 = state_9; [L74] SORT_1 var_17_arg_1 = var_8; [L75] SORT_4 var_17 = var_17_arg_0 == var_17_arg_1; [L76] SORT_4 var_18_arg_0 = var_16; [L77] SORT_4 var_18_arg_1 = var_17; VAL [init_10_arg_1=0, init_12_arg_1=0, init_14_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, mask_SORT_1=4294967295, mask_SORT_4=1, msb_SORT_1=2147483648, msb_SORT_4=1, state_11=0, state_13=0, state_26=0, state_28=0, state_9=0, var_15=0, var_15_arg_0=0, var_15_arg_1=0, var_16=1, var_16_arg_0=0, var_16_arg_1=0, var_17=1, var_17_arg_0=0, var_17_arg_1=0, var_18_arg_0=1, var_18_arg_1=1, var_21=1, var_8=0] [L78] EXPR var_18_arg_0 | var_18_arg_1 VAL [init_10_arg_1=0, init_12_arg_1=0, init_14_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, mask_SORT_1=4294967295, mask_SORT_4=1, msb_SORT_1=2147483648, msb_SORT_4=1, state_11=0, state_13=0, state_26=0, state_28=0, state_9=0, var_15=0, var_15_arg_0=0, var_15_arg_1=0, var_16=1, var_16_arg_0=0, var_16_arg_1=0, var_17=1, var_17_arg_0=0, var_17_arg_1=0, var_18_arg_0=1, var_18_arg_1=1, var_21=1, var_8=0] [L78] SORT_4 var_18 = var_18_arg_0 | var_18_arg_1; [L79] SORT_4 var_22_arg_0 = var_18; [L80] SORT_4 var_22 = ~var_22_arg_0; [L81] SORT_4 var_23_arg_0 = var_21; [L82] SORT_4 var_23_arg_1 = var_22; VAL [init_10_arg_1=0, init_12_arg_1=0, init_14_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, mask_SORT_1=4294967295, mask_SORT_4=1, msb_SORT_1=2147483648, msb_SORT_4=1, state_11=0, state_13=0, state_26=0, state_28=0, state_9=0, var_15=0, var_15_arg_0=0, var_15_arg_1=0, var_16=1, var_16_arg_0=0, var_16_arg_1=0, var_17=1, var_17_arg_0=0, var_17_arg_1=0, var_18=1, var_18_arg_0=1, var_18_arg_1=1, var_21=1, var_22=254, var_22_arg_0=1, var_23_arg_0=1, var_23_arg_1=254, var_8=0] [L83] EXPR var_23_arg_0 & var_23_arg_1 VAL [init_10_arg_1=0, init_12_arg_1=0, init_14_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, mask_SORT_1=4294967295, mask_SORT_4=1, msb_SORT_1=2147483648, msb_SORT_4=1, state_11=0, state_13=0, state_26=0, state_28=0, state_9=0, var_15=0, var_15_arg_0=0, var_15_arg_1=0, var_16=1, var_16_arg_0=0, var_16_arg_1=0, var_17=1, var_17_arg_0=0, var_17_arg_1=0, var_18=1, var_18_arg_0=1, var_18_arg_1=1, var_21=1, var_22=254, var_22_arg_0=1, var_23_arg_0=1, var_23_arg_1=254, var_8=0] [L83] SORT_4 var_23 = var_23_arg_0 & var_23_arg_1; [L84] EXPR var_23 & mask_SORT_4 VAL [init_10_arg_1=0, init_12_arg_1=0, init_14_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, mask_SORT_1=4294967295, mask_SORT_4=1, msb_SORT_1=2147483648, msb_SORT_4=1, state_11=0, state_13=0, state_26=0, state_28=0, state_9=0, var_15=0, var_15_arg_0=0, var_15_arg_1=0, var_16=1, var_16_arg_0=0, var_16_arg_1=0, var_17=1, var_17_arg_0=0, var_17_arg_1=0, var_18=1, var_18_arg_0=1, var_18_arg_1=1, var_21=1, var_22=254, var_22_arg_0=1, var_23=1, var_23_arg_0=1, var_23_arg_1=254, var_8=0] [L84] var_23 = var_23 & mask_SORT_4 [L85] SORT_4 bad_24_arg_0 = var_23; [L86] CALL __VERIFIER_assert(!(bad_24_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, 44 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 128 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 128 mSDsluCounter, 586 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 396 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 63 IncrementalHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 190 mSDtfsCounter, 63 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred in iteration=3, InterpolantAutomatonStates: 15, 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, 3 MinimizatonAttempts, 32 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 93 NumberOfCodeBlocks, 93 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 66 ConstructedInterpolants, 0 QuantifiedInterpolants, 150 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 [2023-11-23 21:41:06,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_408fbe83-058e-4a52-badb-a117aad53623/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_408fbe83-058e-4a52-badb-a117aad53623/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_408fbe83-058e-4a52-badb-a117aad53623/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_408fbe83-058e-4a52-badb-a117aad53623/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_408fbe83-058e-4a52-badb-a117aad53623/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pipeline.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_408fbe83-058e-4a52-badb-a117aad53623/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_408fbe83-058e-4a52-badb-a117aad53623/bin/uautomizer-verify-zZY32mL2XJ --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 5a1c69a049a9608f95ac90730c4f7554434241d21538bbd7cbbae38e9a8e04bb --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:41:09,270 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:41:09,400 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_408fbe83-058e-4a52-badb-a117aad53623/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2023-11-23 21:41:09,411 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:41:09,412 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:41:09,452 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:41:09,453 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:41:09,454 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:41:09,455 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 21:41:09,460 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 21:41:09,460 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:41:09,461 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:41:09,461 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 21:41:09,463 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 21:41:09,463 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 21:41:09,464 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:41:09,464 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:41:09,465 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:41:09,465 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:41:09,466 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:41:09,467 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:41:09,467 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 21:41:09,468 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 21:41:09,468 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 21:41:09,469 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:41:09,469 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:41:09,470 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:41:09,470 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:41:09,470 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:41:09,471 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:41:09,472 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:41:09,473 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:41:09,473 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:41:09,473 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:41:09,473 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-23 21:41:09,473 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 21:41:09,474 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:41:09,475 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 21:41:09,475 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:41:09,475 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 21:41:09,475 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:41:09,475 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-23 21:41:09,476 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_408fbe83-058e-4a52-badb-a117aad53623/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_408fbe83-058e-4a52-badb-a117aad53623/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a1c69a049a9608f95ac90730c4f7554434241d21538bbd7cbbae38e9a8e04bb [2023-11-23 21:41:09,875 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:41:09,904 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:41:09,907 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:41:09,908 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:41:09,909 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:41:09,911 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_408fbe83-058e-4a52-badb-a117aad53623/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pipeline.c [2023-11-23 21:41:13,312 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:41:13,596 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:41:13,597 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_408fbe83-058e-4a52-badb-a117aad53623/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pipeline.c [2023-11-23 21:41:13,613 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_408fbe83-058e-4a52-badb-a117aad53623/bin/uautomizer-verify-zZY32mL2XJ/data/f354e575e/b9deb30a9969440987532be76e03de5c/FLAG83ba11b54 [2023-11-23 21:41:13,630 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_408fbe83-058e-4a52-badb-a117aad53623/bin/uautomizer-verify-zZY32mL2XJ/data/f354e575e/b9deb30a9969440987532be76e03de5c [2023-11-23 21:41:13,636 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:41:13,638 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:41:13,642 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:41:13,642 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:41:13,647 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:41:13,648 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:41:13" (1/1) ... [2023-11-23 21:41:13,649 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@408dd19f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:41:13, skipping insertion in model container [2023-11-23 21:41:13,649 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:41:13" (1/1) ... [2023-11-23 21:41:13,680 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:41:13,879 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_408fbe83-058e-4a52-badb-a117aad53623/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pipeline.c[1248,1261] [2023-11-23 21:41:13,940 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:41:13,962 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:41:13,980 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_408fbe83-058e-4a52-badb-a117aad53623/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pipeline.c[1248,1261] [2023-11-23 21:41:14,020 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:41:14,041 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:41:14,042 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:41:14 WrapperNode [2023-11-23 21:41:14,042 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:41:14,044 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:41:14,044 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:41:14,044 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:41:14,052 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:41:14" (1/1) ... [2023-11-23 21:41:14,071 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:41:14" (1/1) ... [2023-11-23 21:41:14,108 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 120 [2023-11-23 21:41:14,109 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:41:14,110 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:41:14,111 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:41:14,111 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:41:14,122 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:41:14" (1/1) ... [2023-11-23 21:41:14,123 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:41:14" (1/1) ... [2023-11-23 21:41:14,138 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:41:14" (1/1) ... [2023-11-23 21:41:14,160 INFO L189 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-23 21:41:14,166 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:41:14" (1/1) ... [2023-11-23 21:41:14,166 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:41:14" (1/1) ... [2023-11-23 21:41:14,172 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:41:14" (1/1) ... [2023-11-23 21:41:14,181 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:41:14" (1/1) ... [2023-11-23 21:41:14,182 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:41:14" (1/1) ... [2023-11-23 21:41:14,185 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:41:14" (1/1) ... [2023-11-23 21:41:14,190 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:41:14,193 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:41:14,193 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:41:14,194 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:41:14,195 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:41:14" (1/1) ... [2023-11-23 21:41:14,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:41:14,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_408fbe83-058e-4a52-badb-a117aad53623/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:41:14,233 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_408fbe83-058e-4a52-badb-a117aad53623/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:41:14,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_408fbe83-058e-4a52-badb-a117aad53623/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:41:14,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:41:14,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-23 21:41:14,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:41:14,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:41:14,420 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:41:14,422 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:41:14,693 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:41:14,747 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:41:14,751 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:41:14,752 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:41:14 BoogieIcfgContainer [2023-11-23 21:41:14,752 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:41:14,755 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:41:14,755 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:41:14,758 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:41:14,759 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:41:13" (1/3) ... [2023-11-23 21:41:14,760 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@208e761f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:41:14, skipping insertion in model container [2023-11-23 21:41:14,760 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:41:14" (2/3) ... [2023-11-23 21:41:14,761 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@208e761f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:41:14, skipping insertion in model container [2023-11-23 21:41:14,761 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:41:14" (3/3) ... [2023-11-23 21:41:14,763 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.pipeline.c [2023-11-23 21:41:14,783 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:41:14,784 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:41:14,846 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:41:14,853 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;@eb1ae9a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:41:14,853 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:41:14,859 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:41:14,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-23 21:41:14,865 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:41:14,867 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-23 21:41:14,870 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:41:14,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:41:14,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2023-11-23 21:41:14,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 21:41:14,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1726810381] [2023-11-23 21:41:14,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:41:14,892 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 [2023-11-23 21:41:14,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_408fbe83-058e-4a52-badb-a117aad53623/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 21:41:14,895 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_408fbe83-058e-4a52-badb-a117aad53623/bin/uautomizer-verify-zZY32mL2XJ/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) [2023-11-23 21:41:14,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_408fbe83-058e-4a52-badb-a117aad53623/bin/uautomizer-verify-zZY32mL2XJ/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 [2023-11-23 21:41:15,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:41:15,026 INFO L262 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-23 21:41:15,037 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:41:15,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:41:15,296 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:41:15,297 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 21:41:15,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1726810381] [2023-11-23 21:41:15,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1726810381] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:41:15,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:41:15,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:41:15,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359320112] [2023-11-23 21:41:15,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:41:15,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:41:15,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 21:41:15,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:41:15,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:41:15,353 INFO L87 Difference]: Start difference. First operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:41:15,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:41:15,427 INFO L93 Difference]: Finished difference Result 16 states and 24 transitions. [2023-11-23 21:41:15,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:41:15,430 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-23 21:41:15,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:41:15,439 INFO L225 Difference]: With dead ends: 16 [2023-11-23 21:41:15,439 INFO L226 Difference]: Without dead ends: 9 [2023-11-23 21:41:15,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:41:15,447 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 3 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:41:15,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 6 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:41:15,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-11-23 21:41:15,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2023-11-23 21:41:15,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:41:15,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2023-11-23 21:41:15,484 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2023-11-23 21:41:15,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:41:15,485 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2023-11-23 21:41:15,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:41:15,485 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2023-11-23 21:41:15,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-23 21:41:15,486 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:41:15,486 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2023-11-23 21:41:15,495 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_408fbe83-058e-4a52-badb-a117aad53623/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:41:15,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_408fbe83-058e-4a52-badb-a117aad53623/bin/uautomizer-verify-zZY32mL2XJ/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 [2023-11-23 21:41:15,689 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:41:15,690 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:41:15,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1393329571, now seen corresponding path program 1 times [2023-11-23 21:41:15,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 21:41:15,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [546995583] [2023-11-23 21:41:15,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:41:15,692 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 [2023-11-23 21:41:15,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_408fbe83-058e-4a52-badb-a117aad53623/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 21:41:15,699 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_408fbe83-058e-4a52-badb-a117aad53623/bin/uautomizer-verify-zZY32mL2XJ/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) [2023-11-23 21:41:15,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_408fbe83-058e-4a52-badb-a117aad53623/bin/uautomizer-verify-zZY32mL2XJ/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 [2023-11-23 21:41:15,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:41:15,812 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-23 21:41:15,816 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:41:16,073 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:41:16,073 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:41:16,557 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:41:16,557 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 21:41:16,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [546995583] [2023-11-23 21:41:16,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [546995583] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:41:16,558 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 21:41:16,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-23 21:41:16,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506775623] [2023-11-23 21:41:16,559 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 21:41:16,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 21:41:16,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 21:41:16,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 21:41:16,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:41:16,563 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:41:16,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:41:16,695 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2023-11-23 21:41:16,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 21:41:16,696 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-23 21:41:16,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:41:16,696 INFO L225 Difference]: With dead ends: 14 [2023-11-23 21:41:16,697 INFO L226 Difference]: Without dead ends: 12 [2023-11-23 21:41:16,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2023-11-23 21:41:16,699 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 10 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:41:16,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 11 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:41:16,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2023-11-23 21:41:16,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2023-11-23 21:41:16,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:41:16,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2023-11-23 21:41:16,704 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 7 [2023-11-23 21:41:16,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:41:16,705 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2023-11-23 21:41:16,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:41:16,705 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2023-11-23 21:41:16,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-23 21:41:16,706 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:41:16,706 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1] [2023-11-23 21:41:16,713 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_408fbe83-058e-4a52-badb-a117aad53623/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-23 21:41:16,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_408fbe83-058e-4a52-badb-a117aad53623/bin/uautomizer-verify-zZY32mL2XJ/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 [2023-11-23 21:41:16,909 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:41:16,909 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:41:16,910 INFO L85 PathProgramCache]: Analyzing trace with hash -2112524529, now seen corresponding path program 2 times [2023-11-23 21:41:16,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 21:41:16,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [560594633] [2023-11-23 21:41:16,911 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 21:41:16,911 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 [2023-11-23 21:41:16,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_408fbe83-058e-4a52-badb-a117aad53623/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 21:41:16,913 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_408fbe83-058e-4a52-badb-a117aad53623/bin/uautomizer-verify-zZY32mL2XJ/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) [2023-11-23 21:41:16,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_408fbe83-058e-4a52-badb-a117aad53623/bin/uautomizer-verify-zZY32mL2XJ/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 [2023-11-23 21:41:17,034 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 21:41:17,034 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 21:41:17,041 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 34 conjunts are in the unsatisfiable core [2023-11-23 21:41:17,044 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:41:17,393 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 21:41:17,393 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:41:21,762 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 21:41:21,762 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 21:41:21,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [560594633] [2023-11-23 21:41:21,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [560594633] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:41:21,763 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 21:41:21,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-23 21:41:21,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033761241] [2023-11-23 21:41:21,764 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 21:41:21,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 21:41:21,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 21:41:21,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 21:41:21,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=37, Unknown=1, NotChecked=0, Total=56 [2023-11-23 21:41:21,766 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 7 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) [2023-11-23 21:41:21,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:41:21,957 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2023-11-23 21:41:21,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:41:21,959 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 7 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) Word has length 10 [2023-11-23 21:41:21,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:41:21,960 INFO L225 Difference]: With dead ends: 11 [2023-11-23 21:41:21,960 INFO L226 Difference]: Without dead ends: 0 [2023-11-23 21:41:21,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=26, Invalid=45, Unknown=1, NotChecked=0, Total=72 [2023-11-23 21:41:21,962 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 3 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:41:21,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 0 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:41:21,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-23 21:41:21,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-23 21:41:21,964 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) [2023-11-23 21:41:21,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-23 21:41:21,965 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2023-11-23 21:41:21,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:41:21,965 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 21:41:21,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 7 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) [2023-11-23 21:41:21,966 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-23 21:41:21,966 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 21:41:21,969 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:41:21,973 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_408fbe83-058e-4a52-badb-a117aad53623/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-23 21:41:22,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_408fbe83-058e-4a52-badb-a117aad53623/bin/uautomizer-verify-zZY32mL2XJ/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 [2023-11-23 21:41:22,172 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-23 21:41:22,446 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-23 21:41:22,446 INFO L899 garLoopResultBuilder]: For program point L21(line 21) no Hoare annotation was computed. [2023-11-23 21:41:22,446 INFO L899 garLoopResultBuilder]: For program point L21-1(line 21) no Hoare annotation was computed. [2023-11-23 21:41:22,446 INFO L899 garLoopResultBuilder]: For program point L21-3(line 21) no Hoare annotation was computed. [2023-11-23 21:41:22,447 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-23 21:41:22,447 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 21) no Hoare annotation was computed. [2023-11-23 21:41:22,447 INFO L895 garLoopResultBuilder]: At program point L57-2(lines 57 116) the Hoare annotation is: (and (or (= |ULTIMATE.start_main_~state_9~0#1| (_ bv0 32)) (= |ULTIMATE.start_main_~state_9~0#1| (bvand (bvadd |ULTIMATE.start_main_~state_13~0#1| |ULTIMATE.start_main_~state_11~0#1|) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (= |ULTIMATE.start_main_~var_8~0#1| (_ bv0 32)) (= (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_4~0#1|)) [2023-11-23 21:41:22,447 INFO L899 garLoopResultBuilder]: For program point L57-3(lines 57 116) no Hoare annotation was computed. [2023-11-23 21:41:22,451 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1] [2023-11-23 21:41:22,453 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:41:22,466 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:41:22 BoogieIcfgContainer [2023-11-23 21:41:22,466 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:41:22,467 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:41:22,467 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:41:22,467 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:41:22,468 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:41:14" (3/4) ... [2023-11-23 21:41:22,470 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 21:41:22,481 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-23 21:41:22,482 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-23 21:41:22,482 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-23 21:41:22,483 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 21:41:22,618 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_408fbe83-058e-4a52-badb-a117aad53623/bin/uautomizer-verify-zZY32mL2XJ/witness.graphml [2023-11-23 21:41:22,618 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_408fbe83-058e-4a52-badb-a117aad53623/bin/uautomizer-verify-zZY32mL2XJ/witness.yml [2023-11-23 21:41:22,618 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:41:22,619 INFO L158 Benchmark]: Toolchain (without parser) took 8981.24ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 67.9MB in the beginning and 48.5MB in the end (delta: 19.4MB). Peak memory consumption was 39.2MB. Max. memory is 16.1GB. [2023-11-23 21:41:22,620 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 69.2MB. Free memory is still 45.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:41:22,620 INFO L158 Benchmark]: CACSL2BoogieTranslator took 401.21ms. Allocated memory is still 92.3MB. Free memory was 67.7MB in the beginning and 55.5MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-23 21:41:22,620 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.35ms. Allocated memory is still 92.3MB. Free memory was 55.3MB in the beginning and 53.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:41:22,621 INFO L158 Benchmark]: Boogie Preprocessor took 81.54ms. Allocated memory is still 92.3MB. Free memory was 53.5MB in the beginning and 51.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:41:22,621 INFO L158 Benchmark]: RCFGBuilder took 559.43ms. Allocated memory is still 92.3MB. Free memory was 51.2MB in the beginning and 57.6MB in the end (delta: -6.4MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2023-11-23 21:41:22,622 INFO L158 Benchmark]: TraceAbstraction took 7711.35ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 57.1MB in the beginning and 53.7MB in the end (delta: 3.4MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. [2023-11-23 21:41:22,622 INFO L158 Benchmark]: Witness Printer took 151.53ms. Allocated memory is still 111.1MB. Free memory was 53.7MB in the beginning and 48.5MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 21:41:22,626 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 69.2MB. Free memory is still 45.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 401.21ms. Allocated memory is still 92.3MB. Free memory was 67.7MB in the beginning and 55.5MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.35ms. Allocated memory is still 92.3MB. Free memory was 55.3MB in the beginning and 53.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 81.54ms. Allocated memory is still 92.3MB. Free memory was 53.5MB in the beginning and 51.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 559.43ms. Allocated memory is still 92.3MB. Free memory was 51.2MB in the beginning and 57.6MB in the end (delta: -6.4MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. * TraceAbstraction took 7711.35ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 57.1MB in the beginning and 53.7MB in the end (delta: 3.4MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. * Witness Printer took 151.53ms. Allocated memory is still 111.1MB. Free memory was 53.7MB in the beginning and 48.5MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. 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, 8 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.6s, OverallIterations: 3, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 40 IncrementalHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 4 mSDtfsCounter, 40 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=2, InterpolantAutomatonStates: 15, 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, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 4 NumberOfFragments, 18 HoareAnnotationTreeSize, 1 FomulaSimplifications, 22 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 27 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 5.8s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 33 ConstructedInterpolants, 11 QuantifiedInterpolants, 1350 SizeOfPredicates, 82 NumberOfNonLiveVariables, 288 ConjunctsInSsa, 78 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 8/18 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: 57]: Loop Invariant Derived loop invariant: ((((state_9 == 0) || (state_9 == (((state_13 + state_11) % 4294967296) & mask_SORT_1))) && (var_8 == 0)) && (1 == mask_SORT_4)) RESULT: Ultimate proved your program to be correct! [2023-11-23 21:41:22,721 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_408fbe83-058e-4a52-badb-a117aad53623/bin/uautomizer-verify-zZY32mL2XJ/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