./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-84.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c8c351-47bd-4ec9-8039-92af632cbb28/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c8c351-47bd-4ec9-8039-92af632cbb28/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_84c8c351-47bd-4ec9-8039-92af632cbb28/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c8c351-47bd-4ec9-8039-92af632cbb28/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-84.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c8c351-47bd-4ec9-8039-92af632cbb28/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_84c8c351-47bd-4ec9-8039-92af632cbb28/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 994073aed62012ba91afecda0f9cff5d1ecbbdeeb1f3f6d5d749c5bccdadcd29 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:49:08,434 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:49:08,562 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c8c351-47bd-4ec9-8039-92af632cbb28/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 07:49:08,569 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:49:08,570 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:49:08,610 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:49:08,611 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:49:08,611 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:49:08,612 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:49:08,617 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:49:08,619 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:49:08,620 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:49:08,620 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:49:08,622 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:49:08,622 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:49:08,623 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:49:08,623 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:49:08,624 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:49:08,624 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:49:08,624 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:49:08,625 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:49:08,625 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:49:08,626 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:49:08,626 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:49:08,627 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:49:08,628 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:49:08,628 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:49:08,628 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:49:08,629 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:49:08,629 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:49:08,631 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:49:08,631 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:49:08,631 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:49:08,632 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:49:08,632 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:49:08,632 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:49:08,632 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:49:08,632 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:49:08,633 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:49:08,633 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_84c8c351-47bd-4ec9-8039-92af632cbb28/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c8c351-47bd-4ec9-8039-92af632cbb28/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 994073aed62012ba91afecda0f9cff5d1ecbbdeeb1f3f6d5d749c5bccdadcd29 [2023-11-19 07:49:08,987 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:49:09,027 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:49:09,030 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:49:09,032 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:49:09,032 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:49:09,034 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c8c351-47bd-4ec9-8039-92af632cbb28/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-84.i [2023-11-19 07:49:12,194 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:49:12,469 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:49:12,470 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c8c351-47bd-4ec9-8039-92af632cbb28/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-84.i [2023-11-19 07:49:12,481 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c8c351-47bd-4ec9-8039-92af632cbb28/bin/uautomizer-verify-uCwYo4JHxu/data/d33c9d925/7f1bbc6ff32c462d851fd673e35893fb/FLAGdd5d3c9db [2023-11-19 07:49:12,497 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c8c351-47bd-4ec9-8039-92af632cbb28/bin/uautomizer-verify-uCwYo4JHxu/data/d33c9d925/7f1bbc6ff32c462d851fd673e35893fb [2023-11-19 07:49:12,500 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:49:12,502 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:49:12,504 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:49:12,504 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:49:12,509 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:49:12,510 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:49:12" (1/1) ... [2023-11-19 07:49:12,512 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@571b1430 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:12, skipping insertion in model container [2023-11-19 07:49:12,512 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:49:12" (1/1) ... [2023-11-19 07:49:12,542 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:49:12,711 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_84c8c351-47bd-4ec9-8039-92af632cbb28/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-84.i[915,928] [2023-11-19 07:49:12,822 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:49:12,840 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:49:12,868 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_84c8c351-47bd-4ec9-8039-92af632cbb28/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-84.i[915,928] [2023-11-19 07:49:12,921 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:49:12,948 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:49:12,949 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:12 WrapperNode [2023-11-19 07:49:12,950 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:49:12,951 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:49:12,951 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:49:12,952 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:49:12,961 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:12" (1/1) ... [2023-11-19 07:49:12,990 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:12" (1/1) ... [2023-11-19 07:49:13,050 INFO L138 Inliner]: procedures = 26, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 94 [2023-11-19 07:49:13,056 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:49:13,057 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:49:13,057 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:49:13,057 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:49:13,068 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:12" (1/1) ... [2023-11-19 07:49:13,069 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:12" (1/1) ... [2023-11-19 07:49:13,072 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:12" (1/1) ... [2023-11-19 07:49:13,072 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:12" (1/1) ... [2023-11-19 07:49:13,084 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:12" (1/1) ... [2023-11-19 07:49:13,088 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:12" (1/1) ... [2023-11-19 07:49:13,092 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:12" (1/1) ... [2023-11-19 07:49:13,094 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:12" (1/1) ... [2023-11-19 07:49:13,100 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:49:13,116 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:49:13,117 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:49:13,117 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:49:13,118 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:12" (1/1) ... [2023-11-19 07:49:13,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:49:13,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c8c351-47bd-4ec9-8039-92af632cbb28/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:49:13,164 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c8c351-47bd-4ec9-8039-92af632cbb28/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:49:13,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c8c351-47bd-4ec9-8039-92af632cbb28/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:49:13,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:49:13,197 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 07:49:13,197 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 07:49:13,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:49:13,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:49:13,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:49:13,277 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:49:13,280 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:49:13,666 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:49:13,675 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:49:13,676 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:49:13,682 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:49:13 BoogieIcfgContainer [2023-11-19 07:49:13,682 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:49:13,685 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:49:13,686 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:49:13,689 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:49:13,690 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:49:12" (1/3) ... [2023-11-19 07:49:13,691 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b1355e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:49:13, skipping insertion in model container [2023-11-19 07:49:13,691 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:12" (2/3) ... [2023-11-19 07:49:13,691 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b1355e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:49:13, skipping insertion in model container [2023-11-19 07:49:13,691 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:49:13" (3/3) ... [2023-11-19 07:49:13,693 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-84.i [2023-11-19 07:49:13,715 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:49:13,715 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:49:13,770 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:49:13,785 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;@451e7e4a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:49:13,786 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:49:13,789 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 31 states have internal predecessors, (40), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-19 07:49:13,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-19 07:49:13,802 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:49:13,803 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:49:13,804 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:49:13,810 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:13,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1290669553, now seen corresponding path program 1 times [2023-11-19 07:49:13,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:49:13,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818639511] [2023-11-19 07:49:13,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:13,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:49:13,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:14,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-19 07:49:14,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:14,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 07:49:14,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:14,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 07:49:14,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:14,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-19 07:49:14,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:14,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-19 07:49:14,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:14,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:49:14,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:14,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-19 07:49:14,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:14,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-19 07:49:14,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:14,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-19 07:49:14,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:14,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-19 07:49:14,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:14,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-19 07:49:14,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:14,240 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-19 07:49:14,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:49:14,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818639511] [2023-11-19 07:49:14,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818639511] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:49:14,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:49:14,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:49:14,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673664344] [2023-11-19 07:49:14,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:49:14,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:49:14,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:49:14,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:49:14,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:49:14,293 INFO L87 Difference]: Start difference. First operand has 44 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 31 states have internal predecessors, (40), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-19 07:49:14,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:49:14,324 INFO L93 Difference]: Finished difference Result 81 states and 129 transitions. [2023-11-19 07:49:14,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:49:14,327 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 76 [2023-11-19 07:49:14,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:49:14,336 INFO L225 Difference]: With dead ends: 81 [2023-11-19 07:49:14,336 INFO L226 Difference]: Without dead ends: 40 [2023-11-19 07:49:14,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 35 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 07:49:14,350 INFO L413 NwaCegarLoop]: 55 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, 55 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 07:49:14,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:49:14,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-11-19 07:49:14,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2023-11-19 07:49:14,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 27 states have internal predecessors, (33), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-19 07:49:14,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 55 transitions. [2023-11-19 07:49:14,404 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 55 transitions. Word has length 76 [2023-11-19 07:49:14,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:49:14,404 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 55 transitions. [2023-11-19 07:49:14,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-19 07:49:14,405 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 55 transitions. [2023-11-19 07:49:14,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-19 07:49:14,410 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:49:14,410 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:49:14,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:49:14,411 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:49:14,412 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:14,412 INFO L85 PathProgramCache]: Analyzing trace with hash -311629705, now seen corresponding path program 1 times [2023-11-19 07:49:14,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:49:14,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279603367] [2023-11-19 07:49:14,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:14,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:49:14,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:14,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-19 07:49:14,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:14,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 07:49:14,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:14,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 07:49:14,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:14,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-19 07:49:14,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:14,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-19 07:49:14,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:14,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:49:14,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:14,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-19 07:49:14,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:14,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-19 07:49:14,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:14,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-19 07:49:14,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:14,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-19 07:49:14,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:14,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-19 07:49:14,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:14,860 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-19 07:49:14,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:49:14,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279603367] [2023-11-19 07:49:14,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279603367] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:49:14,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:49:14,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:49:14,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947876769] [2023-11-19 07:49:14,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:49:14,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:49:14,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:49:14,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:49:14,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:49:14,871 INFO L87 Difference]: Start difference. First operand 40 states and 55 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-19 07:49:14,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:49:14,914 INFO L93 Difference]: Finished difference Result 77 states and 107 transitions. [2023-11-19 07:49:14,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:49:14,915 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 76 [2023-11-19 07:49:14,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:49:14,923 INFO L225 Difference]: With dead ends: 77 [2023-11-19 07:49:14,924 INFO L226 Difference]: Without dead ends: 40 [2023-11-19 07:49:14,925 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 07:49:14,928 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 8 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:49:14,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 94 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:49:14,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-11-19 07:49:14,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2023-11-19 07:49:14,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 27 states have internal predecessors, (32), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-19 07:49:14,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 54 transitions. [2023-11-19 07:49:14,952 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 54 transitions. Word has length 76 [2023-11-19 07:49:14,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:49:14,955 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 54 transitions. [2023-11-19 07:49:14,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-19 07:49:14,956 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 54 transitions. [2023-11-19 07:49:14,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-19 07:49:14,963 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:49:14,964 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:49:14,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:49:14,965 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:49:14,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:14,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1463377657, now seen corresponding path program 1 times [2023-11-19 07:49:14,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:49:14,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126100898] [2023-11-19 07:49:14,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:14,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:49:15,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:49:15,092 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:49:15,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:49:15,248 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:49:15,249 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:49:15,250 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 07:49:15,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:49:15,256 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-19 07:49:15,260 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:49:15,350 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:49:15 BoogieIcfgContainer [2023-11-19 07:49:15,350 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:49:15,351 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:49:15,351 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:49:15,356 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:49:15,360 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:49:13" (3/4) ... [2023-11-19 07:49:15,364 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 07:49:15,365 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:49:15,366 INFO L158 Benchmark]: Toolchain (without parser) took 2863.94ms. Allocated memory is still 172.0MB. Free memory was 127.7MB in the beginning and 104.8MB in the end (delta: 22.9MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. [2023-11-19 07:49:15,366 INFO L158 Benchmark]: CDTParser took 0.60ms. Allocated memory is still 172.0MB. Free memory is still 145.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:49:15,367 INFO L158 Benchmark]: CACSL2BoogieTranslator took 446.53ms. Allocated memory is still 172.0MB. Free memory was 127.7MB in the beginning and 114.8MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 07:49:15,377 INFO L158 Benchmark]: Boogie Procedure Inliner took 105.09ms. Allocated memory is still 172.0MB. Free memory was 114.8MB in the beginning and 111.4MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 07:49:15,377 INFO L158 Benchmark]: Boogie Preprocessor took 58.78ms. Allocated memory is still 172.0MB. Free memory was 111.4MB in the beginning and 110.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:49:15,378 INFO L158 Benchmark]: RCFGBuilder took 565.78ms. Allocated memory is still 172.0MB. Free memory was 110.1MB in the beginning and 92.6MB in the end (delta: 17.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-19 07:49:15,378 INFO L158 Benchmark]: TraceAbstraction took 1665.33ms. Allocated memory is still 172.0MB. Free memory was 92.6MB in the beginning and 104.8MB in the end (delta: -12.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:49:15,379 INFO L158 Benchmark]: Witness Printer took 14.15ms. Allocated memory is still 172.0MB. Free memory is still 104.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:49:15,381 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.60ms. Allocated memory is still 172.0MB. Free memory is still 145.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 446.53ms. Allocated memory is still 172.0MB. Free memory was 127.7MB in the beginning and 114.8MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 105.09ms. Allocated memory is still 172.0MB. Free memory was 114.8MB in the beginning and 111.4MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.78ms. Allocated memory is still 172.0MB. Free memory was 111.4MB in the beginning and 110.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 565.78ms. Allocated memory is still 172.0MB. Free memory was 110.1MB in the beginning and 92.6MB in the end (delta: 17.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1665.33ms. Allocated memory is still 172.0MB. Free memory was 92.6MB in the beginning and 104.8MB in the end (delta: -12.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 14.15ms. Allocated memory is still 172.0MB. Free memory is still 104.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: 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 someBinaryFLOATComparisonOperation at line 84. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 128; [L23] unsigned char var_1_4 = 25; [L24] unsigned char var_1_5 = 64; [L25] unsigned char var_1_6 = 8; [L26] unsigned char var_1_7 = 0; [L27] unsigned char var_1_8 = 10; [L28] float var_1_9 = 9.6; [L29] float var_1_10 = 99.08; [L30] float var_1_11 = 63.4; [L31] float var_1_12 = 32.125; [L32] signed long int var_1_13 = -8; [L33] signed short int var_1_14 = -2; VAL [isInitial=0, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=25, var_1_5=64, var_1_6=8, var_1_7=0, var_1_8=10, var_1_9=48/5] [L88] isInitial = 1 [L89] FCALL initially() [L90] COND TRUE 1 [L91] FCALL updateLastVariables() [L92] CALL updateVariables() [L62] var_1_4 = __VERIFIER_nondet_uchar() [L63] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_5=64, var_1_6=8, var_1_7=0, var_1_8=10, var_1_9=48/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_5=64, var_1_6=8, var_1_7=0, var_1_8=10, var_1_9=48/5] [L63] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_5=64, var_1_6=8, var_1_7=0, var_1_8=10, var_1_9=48/5] [L64] CALL assume_abort_if_not(var_1_4 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=64, var_1_6=8, var_1_7=0, var_1_8=10, var_1_9=48/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=64, var_1_6=8, var_1_7=0, var_1_8=10, var_1_9=48/5] [L64] RET assume_abort_if_not(var_1_4 <= 127) VAL [isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=64, var_1_6=8, var_1_7=0, var_1_8=10, var_1_9=48/5] [L65] var_1_5 = __VERIFIER_nondet_uchar() [L66] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=8, var_1_7=0, var_1_8=10, var_1_9=48/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=8, var_1_7=0, var_1_8=10, var_1_9=48/5] [L66] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=8, var_1_7=0, var_1_8=10, var_1_9=48/5] [L67] CALL assume_abort_if_not(var_1_5 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=8, var_1_7=0, var_1_8=10, var_1_9=48/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=8, var_1_7=0, var_1_8=10, var_1_9=48/5] [L67] RET assume_abort_if_not(var_1_5 <= 127) VAL [isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=8, var_1_7=0, var_1_8=10, var_1_9=48/5] [L68] var_1_6 = __VERIFIER_nondet_uchar() [L69] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=0, var_1_8=10, var_1_9=48/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=0, var_1_8=10, var_1_9=48/5] [L69] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=0, var_1_8=10, var_1_9=48/5] [L70] CALL assume_abort_if_not(var_1_6 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=0, var_1_8=10, var_1_9=48/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=0, var_1_8=10, var_1_9=48/5] [L70] RET assume_abort_if_not(var_1_6 <= 127) VAL [isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=0, var_1_8=10, var_1_9=48/5] [L71] var_1_7 = __VERIFIER_nondet_uchar() [L72] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=10, var_1_9=48/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=10, var_1_9=48/5] [L72] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=10, var_1_9=48/5] [L73] CALL assume_abort_if_not(var_1_7 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=10, var_1_9=48/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=10, var_1_9=48/5] [L73] RET assume_abort_if_not(var_1_7 <= 127) VAL [isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=10, var_1_9=48/5] [L74] var_1_10 = __VERIFIER_nondet_float() [L75] CALL assume_abort_if_not((var_1_10 >= -922337.2036854776000e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854776000e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=644, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=10, var_1_9=48/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=644, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=10, var_1_9=48/5] [L75] RET assume_abort_if_not((var_1_10 >= -922337.2036854776000e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854776000e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=644, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=10, var_1_9=48/5] [L76] var_1_11 = __VERIFIER_nondet_float() [L77] CALL assume_abort_if_not((var_1_11 >= -922337.2036854776000e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854776000e+12F && var_1_11 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=644, var_1_11=645, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=10, var_1_9=48/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=644, var_1_11=645, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=10, var_1_9=48/5] [L77] RET assume_abort_if_not((var_1_11 >= -922337.2036854776000e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854776000e+12F && var_1_11 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=644, var_1_11=645, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=10, var_1_9=48/5] [L78] var_1_12 = __VERIFIER_nondet_float() [L79] CALL assume_abort_if_not((var_1_12 >= -922337.2036854765600e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854765600e+12F && var_1_12 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=644, var_1_11=645, var_1_12=646, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=10, var_1_9=48/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=644, var_1_11=645, var_1_12=646, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=10, var_1_9=48/5] [L79] RET assume_abort_if_not((var_1_12 >= -922337.2036854765600e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854765600e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=644, var_1_11=645, var_1_12=646, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=10, var_1_9=48/5] [L92] RET updateVariables() [L93] CALL step() [L37] unsigned char stepLocal_1 = var_1_4; VAL [isInitial=1, stepLocal_1=126, var_1_10=644, var_1_11=645, var_1_12=646, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=10, var_1_9=48/5] [L38] COND TRUE var_1_5 > stepLocal_1 [L39] var_1_8 = (128 - ((((10) > (var_1_5)) ? (10) : (var_1_5)))) VAL [isInitial=1, stepLocal_1=126, var_1_10=644, var_1_11=645, var_1_12=646, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=1, var_1_9=48/5] [L41] var_1_13 = var_1_7 [L42] var_1_14 = var_1_7 [L43] signed short int stepLocal_0 = var_1_14; VAL [isInitial=1, stepLocal_0=127, stepLocal_1=126, var_1_10=644, var_1_11=645, var_1_12=646, var_1_13=127, var_1_14=127, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=1, var_1_9=48/5] [L44] COND FALSE !(var_1_14 != stepLocal_0) [L47] var_1_1 = ((((((((var_1_4) < (var_1_6)) ? (var_1_4) : (var_1_6)))) < (var_1_7)) ? (((((var_1_4) < (var_1_6)) ? (var_1_4) : (var_1_6)))) : (var_1_7))) VAL [isInitial=1, stepLocal_0=127, stepLocal_1=126, var_1_10=644, var_1_11=645, var_1_12=646, var_1_13=127, var_1_14=127, var_1_1=126, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=1, var_1_9=48/5] [L49] signed long int stepLocal_3 = var_1_13; [L50] unsigned char stepLocal_2 = var_1_1; VAL [isInitial=1, stepLocal_0=127, stepLocal_1=126, stepLocal_2=126, stepLocal_3=127, var_1_10=644, var_1_11=645, var_1_12=646, var_1_13=127, var_1_14=127, var_1_1=126, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=1, var_1_9=48/5] [L51] COND FALSE !((var_1_10 * var_1_11) > 16.75f) VAL [isInitial=1, stepLocal_0=127, stepLocal_1=126, stepLocal_2=126, stepLocal_3=127, var_1_10=644, var_1_11=645, var_1_12=646, var_1_13=127, var_1_14=127, var_1_1=126, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=1, var_1_9=48/5] [L93] RET step() [L94] CALL, EXPR property() [L84-L85] return (((((var_1_14 != var_1_14) ? (var_1_1 == ((unsigned char) (var_1_4 + ((((((((var_1_5) < (var_1_6)) ? (var_1_5) : (var_1_6)))) > (var_1_7)) ? (((((var_1_5) < (var_1_6)) ? (var_1_5) : (var_1_6)))) : (var_1_7)))))) : (var_1_1 == ((unsigned char) ((((((((var_1_4) < (var_1_6)) ? (var_1_4) : (var_1_6)))) < (var_1_7)) ? (((((var_1_4) < (var_1_6)) ? (var_1_4) : (var_1_6)))) : (var_1_7)))))) && ((var_1_5 > var_1_4) ? (var_1_8 == ((unsigned char) (128 - ((((10) > (var_1_5)) ? (10) : (var_1_5)))))) : 1)) && (((var_1_10 * var_1_11) > 16.75f) ? ((var_1_7 <= var_1_1) ? ((-8 > var_1_13) ? (var_1_9 == ((float) var_1_12)) : 1) : (var_1_9 == ((float) var_1_12))) : 1)) && (var_1_13 == ((signed long int) var_1_7))) && (var_1_14 == ((signed short int) var_1_7)) ; VAL [\result=0, isInitial=1, var_1_10=644, var_1_11=645, var_1_12=646, var_1_13=127, var_1_14=127, var_1_1=126, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=1, var_1_9=48/5] [L94] RET, EXPR property() [L94] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=644, var_1_11=645, var_1_12=646, var_1_13=127, var_1_14=127, var_1_1=126, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=1, var_1_9=48/5] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=644, var_1_11=645, var_1_12=646, var_1_13=127, var_1_14=127, var_1_1=126, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=1, var_1_9=48/5] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 44 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 3, TraceHistogramMax: 11, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 149 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 42 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 107 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 228 NumberOfCodeBlocks, 228 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 150 ConstructedInterpolants, 0 QuantifiedInterpolants, 152 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 440/440 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 07:49:15,433 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c8c351-47bd-4ec9-8039-92af632cbb28/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c8c351-47bd-4ec9-8039-92af632cbb28/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c8c351-47bd-4ec9-8039-92af632cbb28/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_84c8c351-47bd-4ec9-8039-92af632cbb28/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c8c351-47bd-4ec9-8039-92af632cbb28/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-84.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c8c351-47bd-4ec9-8039-92af632cbb28/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c8c351-47bd-4ec9-8039-92af632cbb28/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 994073aed62012ba91afecda0f9cff5d1ecbbdeeb1f3f6d5d749c5bccdadcd29 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:49:18,340 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:49:18,482 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c8c351-47bd-4ec9-8039-92af632cbb28/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-19 07:49:18,491 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:49:18,492 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:49:18,542 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:49:18,543 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:49:18,544 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:49:18,545 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:49:18,550 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:49:18,551 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:49:18,552 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:49:18,552 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:49:18,554 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:49:18,555 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:49:18,555 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:49:18,556 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:49:18,556 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:49:18,556 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:49:18,557 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:49:18,558 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:49:18,558 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:49:18,559 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 07:49:18,559 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 07:49:18,560 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:49:18,560 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:49:18,560 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:49:18,561 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:49:18,561 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:49:18,562 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:49:18,563 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:49:18,563 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:49:18,563 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:49:18,564 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:49:18,564 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-19 07:49:18,564 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 07:49:18,565 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:49:18,565 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:49:18,565 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:49:18,566 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:49:18,566 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-19 07:49:18,567 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:49:18,567 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_84c8c351-47bd-4ec9-8039-92af632cbb28/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c8c351-47bd-4ec9-8039-92af632cbb28/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 994073aed62012ba91afecda0f9cff5d1ecbbdeeb1f3f6d5d749c5bccdadcd29 [2023-11-19 07:49:19,033 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:49:19,061 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:49:19,064 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:49:19,066 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:49:19,067 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:49:19,068 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c8c351-47bd-4ec9-8039-92af632cbb28/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-84.i [2023-11-19 07:49:22,397 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:49:22,696 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:49:22,697 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c8c351-47bd-4ec9-8039-92af632cbb28/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-84.i [2023-11-19 07:49:22,707 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c8c351-47bd-4ec9-8039-92af632cbb28/bin/uautomizer-verify-uCwYo4JHxu/data/bcf1165ea/22d99c63e50e4b2689e9b54ede562069/FLAG4e9d283c4 [2023-11-19 07:49:22,723 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c8c351-47bd-4ec9-8039-92af632cbb28/bin/uautomizer-verify-uCwYo4JHxu/data/bcf1165ea/22d99c63e50e4b2689e9b54ede562069 [2023-11-19 07:49:22,726 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:49:22,728 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:49:22,729 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:49:22,730 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:49:22,735 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:49:22,736 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:49:22" (1/1) ... [2023-11-19 07:49:22,737 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67f50470 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:22, skipping insertion in model container [2023-11-19 07:49:22,738 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:49:22" (1/1) ... [2023-11-19 07:49:22,766 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:49:22,988 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_84c8c351-47bd-4ec9-8039-92af632cbb28/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-84.i[915,928] [2023-11-19 07:49:23,083 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:49:23,115 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:49:23,140 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_84c8c351-47bd-4ec9-8039-92af632cbb28/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-84.i[915,928] [2023-11-19 07:49:23,195 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:49:23,224 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:49:23,224 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:23 WrapperNode [2023-11-19 07:49:23,225 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:49:23,226 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:49:23,227 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:49:23,227 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:49:23,237 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:23" (1/1) ... [2023-11-19 07:49:23,267 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:23" (1/1) ... [2023-11-19 07:49:23,300 INFO L138 Inliner]: procedures = 27, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 94 [2023-11-19 07:49:23,300 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:49:23,301 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:49:23,302 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:49:23,302 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:49:23,316 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:23" (1/1) ... [2023-11-19 07:49:23,316 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:23" (1/1) ... [2023-11-19 07:49:23,320 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:23" (1/1) ... [2023-11-19 07:49:23,321 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:23" (1/1) ... [2023-11-19 07:49:23,339 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:23" (1/1) ... [2023-11-19 07:49:23,355 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:23" (1/1) ... [2023-11-19 07:49:23,359 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:23" (1/1) ... [2023-11-19 07:49:23,365 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:23" (1/1) ... [2023-11-19 07:49:23,375 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:49:23,377 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:49:23,380 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:49:23,381 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:49:23,382 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:23" (1/1) ... [2023-11-19 07:49:23,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:49:23,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c8c351-47bd-4ec9-8039-92af632cbb28/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:49:23,415 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c8c351-47bd-4ec9-8039-92af632cbb28/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:49:23,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c8c351-47bd-4ec9-8039-92af632cbb28/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:49:23,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:49:23,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 07:49:23,484 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 07:49:23,484 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 07:49:23,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:49:23,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:49:23,614 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:49:23,617 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:49:24,853 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:49:24,862 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:49:24,862 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:49:24,866 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:49:24 BoogieIcfgContainer [2023-11-19 07:49:24,866 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:49:24,868 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:49:24,869 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:49:24,872 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:49:24,872 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:49:22" (1/3) ... [2023-11-19 07:49:24,873 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@644cbd1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:49:24, skipping insertion in model container [2023-11-19 07:49:24,874 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:23" (2/3) ... [2023-11-19 07:49:24,874 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@644cbd1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:49:24, skipping insertion in model container [2023-11-19 07:49:24,874 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:49:24" (3/3) ... [2023-11-19 07:49:24,876 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-84.i [2023-11-19 07:49:24,897 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:49:24,897 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:49:24,948 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:49:24,955 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;@da11ebb, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:49:24,955 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:49:24,960 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 31 states have internal predecessors, (40), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-19 07:49:24,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-19 07:49:24,972 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:49:24,973 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:49:24,974 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:49:24,979 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:24,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1290669553, now seen corresponding path program 1 times [2023-11-19 07:49:24,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:49:24,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1237385685] [2023-11-19 07:49:24,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:24,996 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:49:24,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c8c351-47bd-4ec9-8039-92af632cbb28/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:49:25,004 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c8c351-47bd-4ec9-8039-92af632cbb28/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 07:49:25,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c8c351-47bd-4ec9-8039-92af632cbb28/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-19 07:49:25,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:25,365 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 07:49:25,373 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:49:25,427 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2023-11-19 07:49:25,427 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:49:25,428 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:49:25,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1237385685] [2023-11-19 07:49:25,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1237385685] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:49:25,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:49:25,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:49:25,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747964002] [2023-11-19 07:49:25,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:49:25,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:49:25,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:49:25,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:49:25,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:49:25,472 INFO L87 Difference]: Start difference. First operand has 44 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 31 states have internal predecessors, (40), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-19 07:49:25,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:49:25,515 INFO L93 Difference]: Finished difference Result 81 states and 129 transitions. [2023-11-19 07:49:25,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:49:25,518 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 76 [2023-11-19 07:49:25,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:49:25,527 INFO L225 Difference]: With dead ends: 81 [2023-11-19 07:49:25,527 INFO L226 Difference]: Without dead ends: 40 [2023-11-19 07:49:25,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 75 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 07:49:25,539 INFO L413 NwaCegarLoop]: 55 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, 55 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 07:49:25,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:49:25,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-11-19 07:49:25,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2023-11-19 07:49:25,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 27 states have internal predecessors, (33), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-19 07:49:25,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 55 transitions. [2023-11-19 07:49:25,608 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 55 transitions. Word has length 76 [2023-11-19 07:49:25,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:49:25,609 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 55 transitions. [2023-11-19 07:49:25,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-19 07:49:25,610 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 55 transitions. [2023-11-19 07:49:25,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-19 07:49:25,618 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:49:25,618 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:49:25,631 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c8c351-47bd-4ec9-8039-92af632cbb28/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:49:25,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c8c351-47bd-4ec9-8039-92af632cbb28/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:49:25,825 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:49:25,826 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:25,826 INFO L85 PathProgramCache]: Analyzing trace with hash -311629705, now seen corresponding path program 1 times [2023-11-19 07:49:25,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:49:25,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [551127433] [2023-11-19 07:49:25,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:25,828 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:49:25,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c8c351-47bd-4ec9-8039-92af632cbb28/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:49:25,829 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c8c351-47bd-4ec9-8039-92af632cbb28/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 07:49:25,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c8c351-47bd-4ec9-8039-92af632cbb28/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-19 07:49:26,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:26,158 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:49:26,165 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:49:26,246 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-19 07:49:26,247 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:49:26,247 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:49:26,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [551127433] [2023-11-19 07:49:26,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [551127433] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:49:26,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:49:26,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:49:26,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920391342] [2023-11-19 07:49:26,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:49:26,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:49:26,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:49:26,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:49:26,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:49:26,253 INFO L87 Difference]: Start difference. First operand 40 states and 55 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-19 07:49:26,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:49:26,567 INFO L93 Difference]: Finished difference Result 77 states and 107 transitions. [2023-11-19 07:49:26,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:49:26,576 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 76 [2023-11-19 07:49:26,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:49:26,578 INFO L225 Difference]: With dead ends: 77 [2023-11-19 07:49:26,579 INFO L226 Difference]: Without dead ends: 40 [2023-11-19 07:49:26,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 74 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 07:49:26,581 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 8 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:49:26,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 94 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:49:26,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-11-19 07:49:26,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2023-11-19 07:49:26,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 27 states have internal predecessors, (32), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-19 07:49:26,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 54 transitions. [2023-11-19 07:49:26,595 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 54 transitions. Word has length 76 [2023-11-19 07:49:26,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:49:26,597 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 54 transitions. [2023-11-19 07:49:26,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-19 07:49:26,598 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 54 transitions. [2023-11-19 07:49:26,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-19 07:49:26,600 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:49:26,600 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:49:26,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c8c351-47bd-4ec9-8039-92af632cbb28/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:49:26,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c8c351-47bd-4ec9-8039-92af632cbb28/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:49:26,808 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:49:26,808 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:26,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1463377657, now seen corresponding path program 1 times [2023-11-19 07:49:26,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:49:26,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [393756000] [2023-11-19 07:49:26,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:26,810 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:49:26,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c8c351-47bd-4ec9-8039-92af632cbb28/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:49:26,811 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c8c351-47bd-4ec9-8039-92af632cbb28/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 07:49:26,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84c8c351-47bd-4ec9-8039-92af632cbb28/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-19 07:49:27,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:27,192 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-19 07:49:27,204 INFO L285 TraceCheckSpWp]: Computing forward predicates...