./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-91.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_824284de-54dc-4461-98cd-ffd9ac6ba907/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_824284de-54dc-4461-98cd-ffd9ac6ba907/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_824284de-54dc-4461-98cd-ffd9ac6ba907/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_824284de-54dc-4461-98cd-ffd9ac6ba907/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-91.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_824284de-54dc-4461-98cd-ffd9ac6ba907/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_824284de-54dc-4461-98cd-ffd9ac6ba907/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7dd213ac6dc1dab248146f730766ebfe170d3db5782f0c2580c781aeb8b2b6e2 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:46:59,803 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:46:59,908 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_824284de-54dc-4461-98cd-ffd9ac6ba907/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 07:46:59,915 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:46:59,916 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:46:59,960 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:46:59,962 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:46:59,962 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:46:59,963 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:46:59,968 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:46:59,969 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:46:59,970 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:46:59,970 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:46:59,972 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:46:59,972 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:46:59,973 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:46:59,973 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:46:59,973 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:46:59,974 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:46:59,974 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:46:59,975 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:46:59,975 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:46:59,976 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:46:59,976 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:46:59,976 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:46:59,977 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:46:59,978 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:46:59,978 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:46:59,978 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:46:59,979 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:46:59,980 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:46:59,980 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:46:59,981 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:46:59,981 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:46:59,981 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:46:59,981 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:46:59,982 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:46:59,982 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:46:59,982 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:46:59,997 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_824284de-54dc-4461-98cd-ffd9ac6ba907/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_824284de-54dc-4461-98cd-ffd9ac6ba907/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7dd213ac6dc1dab248146f730766ebfe170d3db5782f0c2580c781aeb8b2b6e2 [2023-11-19 07:47:00,260 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:47:00,283 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:47:00,286 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:47:00,288 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:47:00,288 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:47:00,290 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_824284de-54dc-4461-98cd-ffd9ac6ba907/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-91.i [2023-11-19 07:47:03,421 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:47:03,623 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:47:03,623 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_824284de-54dc-4461-98cd-ffd9ac6ba907/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-91.i [2023-11-19 07:47:03,632 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_824284de-54dc-4461-98cd-ffd9ac6ba907/bin/uautomizer-verify-uCwYo4JHxu/data/6cd79b1d2/194fead22f404a2b9ba750983d833c8d/FLAGa9a8456a7 [2023-11-19 07:47:03,645 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_824284de-54dc-4461-98cd-ffd9ac6ba907/bin/uautomizer-verify-uCwYo4JHxu/data/6cd79b1d2/194fead22f404a2b9ba750983d833c8d [2023-11-19 07:47:03,648 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:47:03,650 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:47:03,651 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:47:03,651 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:47:03,657 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:47:03,658 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:47:03" (1/1) ... [2023-11-19 07:47:03,659 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@119629ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:03, skipping insertion in model container [2023-11-19 07:47:03,660 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:47:03" (1/1) ... [2023-11-19 07:47:03,684 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:47:03,863 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_824284de-54dc-4461-98cd-ffd9ac6ba907/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-91.i[915,928] [2023-11-19 07:47:03,921 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:47:03,945 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:47:03,961 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_824284de-54dc-4461-98cd-ffd9ac6ba907/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-91.i[915,928] [2023-11-19 07:47:03,975 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:47:03,994 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:47:03,994 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:03 WrapperNode [2023-11-19 07:47:03,995 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:47:03,996 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:47:03,996 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:47:03,996 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:47:04,005 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:03" (1/1) ... [2023-11-19 07:47:04,025 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:03" (1/1) ... [2023-11-19 07:47:04,067 INFO L138 Inliner]: procedures = 26, calls = 23, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 77 [2023-11-19 07:47:04,067 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:47:04,069 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:47:04,070 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:47:04,070 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:47:04,082 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:03" (1/1) ... [2023-11-19 07:47:04,083 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:03" (1/1) ... [2023-11-19 07:47:04,089 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:03" (1/1) ... [2023-11-19 07:47:04,090 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:03" (1/1) ... [2023-11-19 07:47:04,103 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:03" (1/1) ... [2023-11-19 07:47:04,110 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:03" (1/1) ... [2023-11-19 07:47:04,114 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:03" (1/1) ... [2023-11-19 07:47:04,120 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:03" (1/1) ... [2023-11-19 07:47:04,122 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:47:04,125 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:47:04,125 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:47:04,126 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:47:04,127 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:03" (1/1) ... [2023-11-19 07:47:04,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:47:04,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_824284de-54dc-4461-98cd-ffd9ac6ba907/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:47:04,170 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_824284de-54dc-4461-98cd-ffd9ac6ba907/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:47:04,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_824284de-54dc-4461-98cd-ffd9ac6ba907/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:47:04,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:47:04,228 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 07:47:04,228 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 07:47:04,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:47:04,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:47:04,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:47:04,320 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:47:04,323 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:47:04,515 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:47:04,524 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:47:04,524 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:47:04,528 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:47:04 BoogieIcfgContainer [2023-11-19 07:47:04,529 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:47:04,532 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:47:04,532 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:47:04,536 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:47:04,542 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:47:03" (1/3) ... [2023-11-19 07:47:04,543 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6181fb1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:47:04, skipping insertion in model container [2023-11-19 07:47:04,543 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:03" (2/3) ... [2023-11-19 07:47:04,544 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6181fb1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:47:04, skipping insertion in model container [2023-11-19 07:47:04,544 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:47:04" (3/3) ... [2023-11-19 07:47:04,548 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-91.i [2023-11-19 07:47:04,572 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:47:04,572 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:47:04,622 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:47:04,630 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;@2a9cac7, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:47:04,630 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:47:04,635 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 24 states have internal predecessors, (29), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-19 07:47:04,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-19 07:47:04,647 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:47:04,648 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:04,649 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:47:04,655 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:04,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1724203162, now seen corresponding path program 1 times [2023-11-19 07:47:04,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:04,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747560273] [2023-11-19 07:47:04,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:04,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:04,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:04,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-19 07:47:04,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:04,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 07:47:04,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:04,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 07:47:04,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:04,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-19 07:47:04,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:04,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-19 07:47:04,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:04,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:47:04,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:04,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-19 07:47:04,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:04,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-19 07:47:04,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:04,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-19 07:47:04,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:04,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-19 07:47:05,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:05,011 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-19 07:47:05,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:05,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747560273] [2023-11-19 07:47:05,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747560273] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:05,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:05,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:47:05,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884320011] [2023-11-19 07:47:05,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:05,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:47:05,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:05,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:47:05,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:47:05,077 INFO L87 Difference]: Start difference. First operand has 36 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 24 states have internal predecessors, (29), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-19 07:47:05,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:47:05,124 INFO L93 Difference]: Finished difference Result 65 states and 102 transitions. [2023-11-19 07:47:05,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:47:05,127 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 66 [2023-11-19 07:47:05,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:47:05,135 INFO L225 Difference]: With dead ends: 65 [2023-11-19 07:47:05,135 INFO L226 Difference]: Without dead ends: 32 [2023-11-19 07:47:05,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:47:05,146 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:47:05,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:47:05,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-11-19 07:47:05,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2023-11-19 07:47:05,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 20 states have (on average 1.1) internal successors, (22), 20 states have internal predecessors, (22), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-19 07:47:05,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 42 transitions. [2023-11-19 07:47:05,205 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 42 transitions. Word has length 66 [2023-11-19 07:47:05,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:47:05,206 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 42 transitions. [2023-11-19 07:47:05,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-19 07:47:05,208 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 42 transitions. [2023-11-19 07:47:05,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-19 07:47:05,215 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:47:05,215 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:05,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:47:05,216 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:47:05,217 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:05,218 INFO L85 PathProgramCache]: Analyzing trace with hash -346134694, now seen corresponding path program 1 times [2023-11-19 07:47:05,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:05,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615546939] [2023-11-19 07:47:05,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:05,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:05,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:06,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-19 07:47:06,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:06,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 07:47:06,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:06,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 07:47:06,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:06,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-19 07:47:06,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:06,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-19 07:47:06,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:06,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:47:06,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:06,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-19 07:47:06,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:06,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-19 07:47:06,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:06,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-19 07:47:06,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:06,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-19 07:47:06,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:06,365 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-19 07:47:06,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:06,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615546939] [2023-11-19 07:47:06,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615546939] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:06,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:06,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:47:06,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805271627] [2023-11-19 07:47:06,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:06,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:47:06,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:06,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:47:06,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:47:06,373 INFO L87 Difference]: Start difference. First operand 32 states and 42 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-19 07:47:06,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:47:06,432 INFO L93 Difference]: Finished difference Result 61 states and 81 transitions. [2023-11-19 07:47:06,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:47:06,432 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 66 [2023-11-19 07:47:06,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:47:06,436 INFO L225 Difference]: With dead ends: 61 [2023-11-19 07:47:06,437 INFO L226 Difference]: Without dead ends: 32 [2023-11-19 07:47:06,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:47:06,445 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 2 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 68 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 [2023-11-19 07:47:06,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 68 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:47:06,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-11-19 07:47:06,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2023-11-19 07:47:06,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 20 states have (on average 1.05) internal successors, (21), 20 states have internal predecessors, (21), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-19 07:47:06,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 41 transitions. [2023-11-19 07:47:06,465 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 41 transitions. Word has length 66 [2023-11-19 07:47:06,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:47:06,470 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 41 transitions. [2023-11-19 07:47:06,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-19 07:47:06,473 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 41 transitions. [2023-11-19 07:47:06,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-19 07:47:06,474 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:47:06,474 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:06,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:47:06,475 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:47:06,475 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:06,475 INFO L85 PathProgramCache]: Analyzing trace with hash -288876392, now seen corresponding path program 1 times [2023-11-19 07:47:06,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:06,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718385588] [2023-11-19 07:47:06,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:06,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:06,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:07,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-19 07:47:07,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:07,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 07:47:07,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:07,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 07:47:07,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:07,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-19 07:47:07,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:07,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-19 07:47:07,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:07,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:47:07,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:07,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-19 07:47:07,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:07,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-19 07:47:07,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:07,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-19 07:47:07,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:07,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-19 07:47:07,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:07,426 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-19 07:47:07,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:07,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718385588] [2023-11-19 07:47:07,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718385588] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:07,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:07,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:47:07,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747888105] [2023-11-19 07:47:07,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:07,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:47:07,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:07,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:47:07,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:47:07,430 INFO L87 Difference]: Start difference. First operand 32 states and 41 transitions. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-19 07:47:07,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:47:07,892 INFO L93 Difference]: Finished difference Result 52 states and 71 transitions. [2023-11-19 07:47:07,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-19 07:47:07,893 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 66 [2023-11-19 07:47:07,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:47:07,895 INFO L225 Difference]: With dead ends: 52 [2023-11-19 07:47:07,896 INFO L226 Difference]: Without dead ends: 0 [2023-11-19 07:47:07,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2023-11-19 07:47:07,907 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 20 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:47:07,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 274 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:47:07,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-19 07:47:07,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-19 07:47:07,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:07,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-19 07:47:07,911 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 66 [2023-11-19 07:47:07,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:47:07,911 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:47:07,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-19 07:47:07,911 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-19 07:47:07,911 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 07:47:07,914 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 07:47:07,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:47:07,917 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-19 07:47:07,939 INFO L899 garLoopResultBuilder]: For program point L31(lines 31 32) no Hoare annotation was computed. [2023-11-19 07:47:07,940 INFO L899 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2023-11-19 07:47:07,940 INFO L902 garLoopResultBuilder]: At program point L52(line 52) the Hoare annotation is: true [2023-11-19 07:47:07,940 INFO L902 garLoopResultBuilder]: At program point L52-1(line 52) the Hoare annotation is: true [2023-11-19 07:47:07,940 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-11-19 07:47:07,940 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-11-19 07:47:07,940 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-11-19 07:47:07,941 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 67 78) no Hoare annotation was computed. [2023-11-19 07:47:07,941 INFO L899 garLoopResultBuilder]: For program point L36(lines 36 40) no Hoare annotation was computed. [2023-11-19 07:47:07,941 INFO L899 garLoopResultBuilder]: For program point L36-2(lines 36 40) no Hoare annotation was computed. [2023-11-19 07:47:07,941 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-19 07:47:07,941 INFO L899 garLoopResultBuilder]: For program point L61(lines 61 62) no Hoare annotation was computed. [2023-11-19 07:47:07,941 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-19 07:47:07,941 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-11-19 07:47:07,942 INFO L899 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2023-11-19 07:47:07,942 INFO L902 garLoopResultBuilder]: At program point L49(line 49) the Hoare annotation is: true [2023-11-19 07:47:07,942 INFO L902 garLoopResultBuilder]: At program point L49-1(line 49) the Hoare annotation is: true [2023-11-19 07:47:07,942 INFO L899 garLoopResultBuilder]: For program point property_returnLabel#1(lines 63 66) no Hoare annotation was computed. [2023-11-19 07:47:07,942 INFO L902 garLoopResultBuilder]: At program point L70-2(lines 70 76) the Hoare annotation is: true [2023-11-19 07:47:07,942 INFO L899 garLoopResultBuilder]: For program point L70-3(lines 70 76) no Hoare annotation was computed. [2023-11-19 07:47:07,943 INFO L899 garLoopResultBuilder]: For program point L33(lines 33 43) no Hoare annotation was computed. [2023-11-19 07:47:07,943 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-19 07:47:07,943 INFO L902 garLoopResultBuilder]: At program point L58(line 58) the Hoare annotation is: true [2023-11-19 07:47:07,943 INFO L902 garLoopResultBuilder]: At program point L58-1(line 58) the Hoare annotation is: true [2023-11-19 07:47:07,943 INFO L899 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2023-11-19 07:47:07,943 INFO L902 garLoopResultBuilder]: At program point L46(line 46) the Hoare annotation is: true [2023-11-19 07:47:07,944 INFO L902 garLoopResultBuilder]: At program point L46-1(line 46) the Hoare annotation is: true [2023-11-19 07:47:07,944 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-19 07:47:07,944 INFO L899 garLoopResultBuilder]: For program point L59(lines 44 60) no Hoare annotation was computed. [2023-11-19 07:47:07,944 INFO L902 garLoopResultBuilder]: At program point L55(line 55) the Hoare annotation is: true [2023-11-19 07:47:07,944 INFO L902 garLoopResultBuilder]: At program point L55-1(line 55) the Hoare annotation is: true [2023-11-19 07:47:07,944 INFO L899 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2023-11-19 07:47:07,945 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-11-19 07:47:07,945 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-11-19 07:47:07,945 INFO L899 garLoopResultBuilder]: For program point L20-2(line 20) no Hoare annotation was computed. [2023-11-19 07:47:07,945 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-11-19 07:47:07,948 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-19 07:47:07,951 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:47:07,960 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:47:07 BoogieIcfgContainer [2023-11-19 07:47:07,960 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:47:07,960 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:47:07,960 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:47:07,961 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:47:07,961 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:47:04" (3/4) ... [2023-11-19 07:47:07,963 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 07:47:07,968 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-19 07:47:07,973 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-11-19 07:47:07,973 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-19 07:47:07,973 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 07:47:07,974 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 07:47:08,068 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_824284de-54dc-4461-98cd-ffd9ac6ba907/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:47:08,069 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_824284de-54dc-4461-98cd-ffd9ac6ba907/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 07:47:08,069 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:47:08,069 INFO L158 Benchmark]: Toolchain (without parser) took 4420.05ms. Allocated memory was 161.5MB in the beginning and 234.9MB in the end (delta: 73.4MB). Free memory was 114.5MB in the beginning and 125.7MB in the end (delta: -11.3MB). Peak memory consumption was 63.4MB. Max. memory is 16.1GB. [2023-11-19 07:47:08,070 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 161.5MB. Free memory is still 130.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:47:08,070 INFO L158 Benchmark]: CACSL2BoogieTranslator took 343.82ms. Allocated memory is still 161.5MB. Free memory was 114.5MB in the beginning and 103.1MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 07:47:08,071 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.97ms. Allocated memory is still 161.5MB. Free memory was 103.1MB in the beginning and 101.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:47:08,071 INFO L158 Benchmark]: Boogie Preprocessor took 54.87ms. Allocated memory is still 161.5MB. Free memory was 101.3MB in the beginning and 100.4MB in the end (delta: 877.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:47:08,071 INFO L158 Benchmark]: RCFGBuilder took 403.89ms. Allocated memory is still 161.5MB. Free memory was 100.4MB in the beginning and 87.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 07:47:08,072 INFO L158 Benchmark]: TraceAbstraction took 3428.11ms. Allocated memory was 161.5MB in the beginning and 234.9MB in the end (delta: 73.4MB). Free memory was 87.2MB in the beginning and 129.9MB in the end (delta: -42.7MB). Peak memory consumption was 31.9MB. Max. memory is 16.1GB. [2023-11-19 07:47:08,072 INFO L158 Benchmark]: Witness Printer took 108.59ms. Allocated memory is still 234.9MB. Free memory was 129.9MB in the beginning and 125.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 07:47:08,074 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 161.5MB. Free memory is still 130.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 343.82ms. Allocated memory is still 161.5MB. Free memory was 114.5MB in the beginning and 103.1MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.97ms. Allocated memory is still 161.5MB. Free memory was 103.1MB in the beginning and 101.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.87ms. Allocated memory is still 161.5MB. Free memory was 101.3MB in the beginning and 100.4MB in the end (delta: 877.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 403.89ms. Allocated memory is still 161.5MB. Free memory was 100.4MB in the beginning and 87.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 3428.11ms. Allocated memory was 161.5MB in the beginning and 234.9MB in the end (delta: 73.4MB). Free memory was 87.2MB in the beginning and 129.9MB in the end (delta: -42.7MB). Peak memory consumption was 31.9MB. Max. memory is 16.1GB. * Witness Printer took 108.59ms. Allocated memory is still 234.9MB. Free memory was 129.9MB in the beginning and 125.7MB in the end (delta: 4.2MB). 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: 19]: 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 2 procedures, 36 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.3s, OverallIterations: 3, TraceHistogramMax: 10, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 32 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22 mSDsluCounter, 384 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 242 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 101 IncrementalHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 142 mSDtfsCounter, 101 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 93 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=0, InterpolantAutomatonStates: 16, 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 51 PreInvPairs, 73 NumberOfFragments, 12 HoareAnnotationTreeSize, 51 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 198 NumberOfCodeBlocks, 198 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 195 ConstructedInterpolants, 0 QuantifiedInterpolants, 417 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 540/540 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: 70]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-11-19 07:47:08,109 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_824284de-54dc-4461-98cd-ffd9ac6ba907/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE