./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-69.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_330432ce-069e-435a-b364-c2f493169126/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330432ce-069e-435a-b364-c2f493169126/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_330432ce-069e-435a-b364-c2f493169126/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330432ce-069e-435a-b364-c2f493169126/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-69.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330432ce-069e-435a-b364-c2f493169126/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_330432ce-069e-435a-b364-c2f493169126/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 be2af847ca6e6b21a33c086089fa377d9cd33581334f785b17b8fcc9e5016299 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:39:05,025 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:39:05,107 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330432ce-069e-435a-b364-c2f493169126/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 07:39:05,113 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:39:05,114 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:39:05,147 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:39:05,148 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:39:05,148 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:39:05,149 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:39:05,149 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:39:05,150 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:39:05,151 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:39:05,151 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:39:05,152 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:39:05,153 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:39:05,153 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:39:05,154 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:39:05,154 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:39:05,155 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:39:05,155 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:39:05,156 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:39:05,157 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:39:05,157 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:39:05,158 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:39:05,158 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:39:05,159 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:39:05,159 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:39:05,160 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:39:05,160 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:39:05,161 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:39:05,161 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:39:05,162 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:39:05,162 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:39:05,163 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:39:05,163 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:39:05,168 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:39:05,169 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:39:05,169 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:39:05,170 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:39:05,170 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_330432ce-069e-435a-b364-c2f493169126/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330432ce-069e-435a-b364-c2f493169126/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be2af847ca6e6b21a33c086089fa377d9cd33581334f785b17b8fcc9e5016299 [2023-11-19 07:39:05,467 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:39:05,500 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:39:05,503 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:39:05,505 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:39:05,505 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:39:05,507 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330432ce-069e-435a-b364-c2f493169126/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-69.i [2023-11-19 07:39:08,606 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:39:08,847 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:39:08,848 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330432ce-069e-435a-b364-c2f493169126/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-69.i [2023-11-19 07:39:08,873 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330432ce-069e-435a-b364-c2f493169126/bin/uautomizer-verify-uCwYo4JHxu/data/18bc9d28f/b8a0f8c0326b420cac9c6f0bccaa8414/FLAGa3239f5a0 [2023-11-19 07:39:08,899 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330432ce-069e-435a-b364-c2f493169126/bin/uautomizer-verify-uCwYo4JHxu/data/18bc9d28f/b8a0f8c0326b420cac9c6f0bccaa8414 [2023-11-19 07:39:08,902 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:39:08,903 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:39:08,905 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:39:08,905 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:39:08,912 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:39:08,913 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:39:08" (1/1) ... [2023-11-19 07:39:08,914 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a7e752c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:08, skipping insertion in model container [2023-11-19 07:39:08,915 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:39:08" (1/1) ... [2023-11-19 07:39:08,942 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:39:09,107 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_330432ce-069e-435a-b364-c2f493169126/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-69.i[915,928] [2023-11-19 07:39:09,138 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:39:09,151 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:39:09,166 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_330432ce-069e-435a-b364-c2f493169126/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-69.i[915,928] [2023-11-19 07:39:09,188 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:39:09,207 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:39:09,208 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:09 WrapperNode [2023-11-19 07:39:09,208 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:39:09,210 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:39:09,210 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:39:09,210 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:39:09,218 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:09" (1/1) ... [2023-11-19 07:39:09,228 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:09" (1/1) ... [2023-11-19 07:39:09,263 INFO L138 Inliner]: procedures = 26, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 76 [2023-11-19 07:39:09,264 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:39:09,264 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:39:09,265 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:39:09,265 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:39:09,276 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:09" (1/1) ... [2023-11-19 07:39:09,276 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:09" (1/1) ... [2023-11-19 07:39:09,279 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:09" (1/1) ... [2023-11-19 07:39:09,279 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:09" (1/1) ... [2023-11-19 07:39:09,293 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:09" (1/1) ... [2023-11-19 07:39:09,295 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:09" (1/1) ... [2023-11-19 07:39:09,297 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:09" (1/1) ... [2023-11-19 07:39:09,298 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:09" (1/1) ... [2023-11-19 07:39:09,301 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:39:09,302 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:39:09,303 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:39:09,303 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:39:09,304 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:09" (1/1) ... [2023-11-19 07:39:09,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:39:09,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330432ce-069e-435a-b364-c2f493169126/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:39:09,338 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330432ce-069e-435a-b364-c2f493169126/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:39:09,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330432ce-069e-435a-b364-c2f493169126/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:39:09,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:39:09,376 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 07:39:09,376 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 07:39:09,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:39:09,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:39:09,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:39:09,483 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:39:09,485 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:39:09,732 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:39:09,741 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:39:09,741 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:39:09,745 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:39:09 BoogieIcfgContainer [2023-11-19 07:39:09,745 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:39:09,749 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:39:09,749 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:39:09,753 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:39:09,753 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:39:08" (1/3) ... [2023-11-19 07:39:09,754 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35f1581e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:39:09, skipping insertion in model container [2023-11-19 07:39:09,754 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:09" (2/3) ... [2023-11-19 07:39:09,754 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35f1581e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:39:09, skipping insertion in model container [2023-11-19 07:39:09,755 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:39:09" (3/3) ... [2023-11-19 07:39:09,756 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-69.i [2023-11-19 07:39:09,778 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:39:09,779 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:39:09,835 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:39:09,842 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;@48a0794, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:39:09,842 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:39:09,846 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 25 states have internal predecessors, (31), 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 07:39:09,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-19 07:39:09,858 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:39:09,858 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] [2023-11-19 07:39:09,859 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:39:09,864 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:09,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1785575530, now seen corresponding path program 1 times [2023-11-19 07:39:09,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:09,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877858953] [2023-11-19 07:39:09,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:09,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:09,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:10,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-19 07:39:10,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:10,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 07:39:10,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:10,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 07:39:10,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:10,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-19 07:39:10,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:10,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-19 07:39:10,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:10,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:39:10,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:10,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-19 07:39:10,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:10,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-19 07:39:10,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:10,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-19 07:39:10,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:10,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-19 07:39:10,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:10,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-19 07:39:10,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:10,226 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 07:39:10,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:10,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877858953] [2023-11-19 07:39:10,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877858953] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:10,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:10,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:39:10,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471547718] [2023-11-19 07:39:10,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:10,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:39:10,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:10,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:39:10,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:39:10,299 INFO L87 Difference]: Start difference. First operand has 38 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 25 states have internal predecessors, (31), 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 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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 07:39:10,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:39:10,331 INFO L93 Difference]: Finished difference Result 69 states and 111 transitions. [2023-11-19 07:39:10,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:39:10,334 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (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 71 [2023-11-19 07:39:10,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:39:10,342 INFO L225 Difference]: With dead ends: 69 [2023-11-19 07:39:10,343 INFO L226 Difference]: Without dead ends: 34 [2023-11-19 07:39:10,346 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 07:39:10,351 INFO L413 NwaCegarLoop]: 46 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, 46 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 07:39:10,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:39:10,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-11-19 07:39:10,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2023-11-19 07:39:10,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 21 states have internal predecessors, (24), 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 07:39:10,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 46 transitions. [2023-11-19 07:39:10,397 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 46 transitions. Word has length 71 [2023-11-19 07:39:10,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:39:10,397 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 46 transitions. [2023-11-19 07:39:10,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (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 07:39:10,398 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 46 transitions. [2023-11-19 07:39:10,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-19 07:39:10,403 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:39:10,403 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] [2023-11-19 07:39:10,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:39:10,404 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:39:10,405 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:10,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1357657816, now seen corresponding path program 1 times [2023-11-19 07:39:10,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:10,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515756641] [2023-11-19 07:39:10,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:10,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:10,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:39:10,540 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:39:10,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:39:10,650 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:39:10,651 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:39:10,653 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 07:39:10,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:39:10,661 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-19 07:39:10,666 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:39:10,751 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:39:10 BoogieIcfgContainer [2023-11-19 07:39:10,751 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:39:10,752 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:39:10,752 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:39:10,753 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:39:10,753 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:39:09" (3/4) ... [2023-11-19 07:39:10,756 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 07:39:10,757 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:39:10,758 INFO L158 Benchmark]: Toolchain (without parser) took 1854.81ms. Allocated memory is still 167.8MB. Free memory was 138.2MB in the beginning and 86.5MB in the end (delta: 51.7MB). Peak memory consumption was 49.6MB. Max. memory is 16.1GB. [2023-11-19 07:39:10,759 INFO L158 Benchmark]: CDTParser took 0.68ms. Allocated memory is still 125.8MB. Free memory is still 97.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:39:10,760 INFO L158 Benchmark]: CACSL2BoogieTranslator took 303.69ms. Allocated memory is still 167.8MB. Free memory was 137.4MB in the beginning and 126.5MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 07:39:10,761 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.14ms. Allocated memory is still 167.8MB. Free memory was 126.5MB in the beginning and 124.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:39:10,761 INFO L158 Benchmark]: Boogie Preprocessor took 37.25ms. Allocated memory is still 167.8MB. Free memory was 124.4MB in the beginning and 122.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:39:10,762 INFO L158 Benchmark]: RCFGBuilder took 443.11ms. Allocated memory is still 167.8MB. Free memory was 122.8MB in the beginning and 128.4MB in the end (delta: -5.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 07:39:10,763 INFO L158 Benchmark]: TraceAbstraction took 1002.86ms. Allocated memory is still 167.8MB. Free memory was 127.6MB in the beginning and 86.5MB in the end (delta: 41.1MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2023-11-19 07:39:10,763 INFO L158 Benchmark]: Witness Printer took 5.45ms. Allocated memory is still 167.8MB. Free memory is still 86.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:39:10,767 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.68ms. Allocated memory is still 125.8MB. Free memory is still 97.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 303.69ms. Allocated memory is still 167.8MB. Free memory was 137.4MB in the beginning and 126.5MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.14ms. Allocated memory is still 167.8MB. Free memory was 126.5MB in the beginning and 124.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.25ms. Allocated memory is still 167.8MB. Free memory was 124.4MB in the beginning and 122.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 443.11ms. Allocated memory is still 167.8MB. Free memory was 122.8MB in the beginning and 128.4MB in the end (delta: -5.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1002.86ms. Allocated memory is still 167.8MB. Free memory was 127.6MB in the beginning and 86.5MB in the end (delta: 41.1MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Witness Printer took 5.45ms. Allocated memory is still 167.8MB. Free memory is still 86.5MB. 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 64. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 0; [L23] unsigned char var_1_3 = 1; [L24] unsigned char var_1_4 = 0; [L25] unsigned char var_1_5 = 0; [L26] unsigned char var_1_6 = 0; [L27] unsigned char var_1_7 = 1; [L28] float var_1_8 = 127.4; [L29] float var_1_9 = 24.75; VAL [isInitial=0, var_1_1=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=637/5, var_1_9=99/4] [L68] isInitial = 1 [L69] FCALL initially() [L70] COND TRUE 1 [L71] FCALL updateLastVariables() [L72] CALL updateVariables() [L43] var_1_3 = __VERIFIER_nondet_uchar() [L44] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=637/5, var_1_9=99/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=637/5, var_1_9=99/4] [L44] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=637/5, var_1_9=99/4] [L45] CALL assume_abort_if_not(var_1_3 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=637/5, var_1_9=99/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=637/5, var_1_9=99/4] [L45] RET assume_abort_if_not(var_1_3 <= 1) VAL [isInitial=1, var_1_1=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=637/5, var_1_9=99/4] [L46] var_1_4 = __VERIFIER_nondet_uchar() [L47] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=637/5, var_1_9=99/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=637/5, var_1_9=99/4] [L47] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_1=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=637/5, var_1_9=99/4] [L48] CALL assume_abort_if_not(var_1_4 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=637/5, var_1_9=99/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=637/5, var_1_9=99/4] [L48] RET assume_abort_if_not(var_1_4 <= 0) VAL [isInitial=1, var_1_1=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=637/5, var_1_9=99/4] [L49] var_1_5 = __VERIFIER_nondet_uchar() [L50] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=637/5, var_1_9=99/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=637/5, var_1_9=99/4] [L50] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_1=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=637/5, var_1_9=99/4] [L51] CALL assume_abort_if_not(var_1_5 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=637/5, var_1_9=99/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=637/5, var_1_9=99/4] [L51] RET assume_abort_if_not(var_1_5 <= 0) VAL [isInitial=1, var_1_1=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=637/5, var_1_9=99/4] [L52] var_1_6 = __VERIFIER_nondet_uchar() [L53] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=637/5, var_1_9=99/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=637/5, var_1_9=99/4] [L53] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_1=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=637/5, var_1_9=99/4] [L54] CALL assume_abort_if_not(var_1_6 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=637/5, var_1_9=99/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=637/5, var_1_9=99/4] [L54] RET assume_abort_if_not(var_1_6 <= 0) VAL [isInitial=1, var_1_1=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=637/5, var_1_9=99/4] [L55] var_1_7 = __VERIFIER_nondet_uchar() [L56] CALL assume_abort_if_not(var_1_7 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=637/5, var_1_9=99/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=637/5, var_1_9=99/4] [L56] RET assume_abort_if_not(var_1_7 >= 1) VAL [isInitial=1, var_1_1=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=637/5, var_1_9=99/4] [L57] CALL assume_abort_if_not(var_1_7 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=637/5, var_1_9=99/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=637/5, var_1_9=99/4] [L57] RET assume_abort_if_not(var_1_7 <= 1) VAL [isInitial=1, var_1_1=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=637/5, var_1_9=99/4] [L58] var_1_9 = __VERIFIER_nondet_float() [L59] CALL assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=637/5, var_1_9=773] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=637/5, var_1_9=773] [L59] RET assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=637/5, var_1_9=773] [L72] RET updateVariables() [L73] CALL step() [L33] var_1_8 = var_1_9 VAL [isInitial=1, var_1_1=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=773, var_1_9=773] [L34] COND FALSE !(1.875f != ((((63.1f) > (var_1_8)) ? (63.1f) : (var_1_8)))) VAL [isInitial=1, var_1_1=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=773, var_1_9=773] [L73] RET step() [L74] CALL, EXPR property() [L64-L65] return ((1.875f != ((((63.1f) > (var_1_8)) ? (63.1f) : (var_1_8)))) ? (var_1_3 ? (var_1_1 == ((unsigned char) ((var_1_4 || var_1_5) || var_1_6))) : (var_1_1 == ((unsigned char) (! var_1_7)))) : 1) && (var_1_8 == ((float) var_1_9)) ; VAL [\result=0, isInitial=1, var_1_1=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=773, var_1_9=773] [L74] RET, EXPR property() [L74] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_1=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=773, var_1_9=773] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_1=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=773, var_1_9=773] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 11, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 46 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 46 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 70 ConstructedInterpolants, 0 QuantifiedInterpolants, 70 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 220/220 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 07:39:10,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330432ce-069e-435a-b364-c2f493169126/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_330432ce-069e-435a-b364-c2f493169126/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330432ce-069e-435a-b364-c2f493169126/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_330432ce-069e-435a-b364-c2f493169126/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330432ce-069e-435a-b364-c2f493169126/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-69.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330432ce-069e-435a-b364-c2f493169126/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_330432ce-069e-435a-b364-c2f493169126/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 be2af847ca6e6b21a33c086089fa377d9cd33581334f785b17b8fcc9e5016299 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:39:13,626 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:39:13,742 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330432ce-069e-435a-b364-c2f493169126/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-19 07:39:13,748 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:39:13,748 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:39:13,781 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:39:13,782 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:39:13,782 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:39:13,783 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:39:13,784 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:39:13,784 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:39:13,785 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:39:13,785 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:39:13,786 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:39:13,787 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:39:13,787 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:39:13,788 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:39:13,788 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:39:13,789 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:39:13,789 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:39:13,790 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:39:13,790 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:39:13,791 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 07:39:13,791 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 07:39:13,791 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:39:13,792 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:39:13,792 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:39:13,793 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:39:13,793 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:39:13,794 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:39:13,794 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:39:13,795 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:39:13,795 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:39:13,795 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:39:13,796 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-19 07:39:13,796 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 07:39:13,797 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:39:13,797 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:39:13,797 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:39:13,798 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:39:13,798 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-19 07:39:13,798 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:39:13,798 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_330432ce-069e-435a-b364-c2f493169126/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330432ce-069e-435a-b364-c2f493169126/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be2af847ca6e6b21a33c086089fa377d9cd33581334f785b17b8fcc9e5016299 [2023-11-19 07:39:14,203 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:39:14,236 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:39:14,239 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:39:14,241 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:39:14,242 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:39:14,244 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330432ce-069e-435a-b364-c2f493169126/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-69.i [2023-11-19 07:39:17,405 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:39:17,632 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:39:17,633 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330432ce-069e-435a-b364-c2f493169126/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-69.i [2023-11-19 07:39:17,640 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330432ce-069e-435a-b364-c2f493169126/bin/uautomizer-verify-uCwYo4JHxu/data/ac114f206/3cf6413b211a4c83ab084c0cf59d90b7/FLAG4d539913e [2023-11-19 07:39:17,653 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330432ce-069e-435a-b364-c2f493169126/bin/uautomizer-verify-uCwYo4JHxu/data/ac114f206/3cf6413b211a4c83ab084c0cf59d90b7 [2023-11-19 07:39:17,655 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:39:17,657 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:39:17,659 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:39:17,659 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:39:17,665 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:39:17,665 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:39:17" (1/1) ... [2023-11-19 07:39:17,667 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48b2cda7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:17, skipping insertion in model container [2023-11-19 07:39:17,667 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:39:17" (1/1) ... [2023-11-19 07:39:17,691 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:39:17,861 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_330432ce-069e-435a-b364-c2f493169126/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-69.i[915,928] [2023-11-19 07:39:17,889 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:39:17,909 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:39:17,927 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_330432ce-069e-435a-b364-c2f493169126/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-69.i[915,928] [2023-11-19 07:39:17,957 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:39:17,981 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:39:17,982 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:17 WrapperNode [2023-11-19 07:39:17,982 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:39:17,983 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:39:17,984 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:39:17,984 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:39:17,992 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:17" (1/1) ... [2023-11-19 07:39:18,012 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:17" (1/1) ... [2023-11-19 07:39:18,051 INFO L138 Inliner]: procedures = 27, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 76 [2023-11-19 07:39:18,051 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:39:18,053 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:39:18,053 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:39:18,053 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:39:18,063 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:17" (1/1) ... [2023-11-19 07:39:18,077 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:17" (1/1) ... [2023-11-19 07:39:18,082 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:17" (1/1) ... [2023-11-19 07:39:18,082 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:17" (1/1) ... [2023-11-19 07:39:18,102 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:17" (1/1) ... [2023-11-19 07:39:18,107 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:17" (1/1) ... [2023-11-19 07:39:18,115 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:17" (1/1) ... [2023-11-19 07:39:18,121 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:17" (1/1) ... [2023-11-19 07:39:18,124 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:39:18,129 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:39:18,129 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:39:18,129 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:39:18,131 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:17" (1/1) ... [2023-11-19 07:39:18,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:39:18,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330432ce-069e-435a-b364-c2f493169126/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:39:18,169 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330432ce-069e-435a-b364-c2f493169126/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:39:18,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330432ce-069e-435a-b364-c2f493169126/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:39:18,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:39:18,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 07:39:18,213 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 07:39:18,213 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 07:39:18,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:39:18,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:39:18,299 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:39:18,301 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:39:18,501 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:39:18,509 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:39:18,509 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:39:18,513 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:39:18 BoogieIcfgContainer [2023-11-19 07:39:18,513 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:39:18,515 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:39:18,515 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:39:18,519 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:39:18,519 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:39:17" (1/3) ... [2023-11-19 07:39:18,520 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ca03bc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:39:18, skipping insertion in model container [2023-11-19 07:39:18,520 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:17" (2/3) ... [2023-11-19 07:39:18,520 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ca03bc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:39:18, skipping insertion in model container [2023-11-19 07:39:18,521 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:39:18" (3/3) ... [2023-11-19 07:39:18,522 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-69.i [2023-11-19 07:39:18,542 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:39:18,543 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:39:18,596 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:39:18,603 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;@4e3457d1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:39:18,603 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:39:18,608 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 25 states have internal predecessors, (31), 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 07:39:18,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-19 07:39:18,619 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:39:18,620 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] [2023-11-19 07:39:18,621 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:39:18,626 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:18,627 INFO L85 PathProgramCache]: Analyzing trace with hash -1785575530, now seen corresponding path program 1 times [2023-11-19 07:39:18,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:39:18,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [348573552] [2023-11-19 07:39:18,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:18,645 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 07:39:18,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330432ce-069e-435a-b364-c2f493169126/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:39:18,652 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330432ce-069e-435a-b364-c2f493169126/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 07:39:18,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330432ce-069e-435a-b364-c2f493169126/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 07:39:18,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:18,905 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 07:39:18,914 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:39:18,960 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2023-11-19 07:39:18,960 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:39:18,961 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:39:18,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [348573552] [2023-11-19 07:39:18,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [348573552] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:18,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:18,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:39:18,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676799861] [2023-11-19 07:39:18,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:18,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:39:18,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:39:19,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:39:19,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:39:19,026 INFO L87 Difference]: Start difference. First operand has 38 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 25 states have internal predecessors, (31), 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 11.5) internal successors, (23), 2 states have internal predecessors, (23), 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 07:39:19,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:39:19,071 INFO L93 Difference]: Finished difference Result 69 states and 111 transitions. [2023-11-19 07:39:19,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:39:19,074 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 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 71 [2023-11-19 07:39:19,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:39:19,082 INFO L225 Difference]: With dead ends: 69 [2023-11-19 07:39:19,083 INFO L226 Difference]: Without dead ends: 34 [2023-11-19 07:39:19,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 70 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 07:39:19,094 INFO L413 NwaCegarLoop]: 45 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, 45 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 07:39:19,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:39:19,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-11-19 07:39:19,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2023-11-19 07:39:19,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 21 states have (on average 1.0952380952380953) internal successors, (23), 21 states have internal predecessors, (23), 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 07:39:19,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 45 transitions. [2023-11-19 07:39:19,139 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 45 transitions. Word has length 71 [2023-11-19 07:39:19,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:39:19,140 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 45 transitions. [2023-11-19 07:39:19,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 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 07:39:19,141 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2023-11-19 07:39:19,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-19 07:39:19,145 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:39:19,145 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] [2023-11-19 07:39:19,153 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330432ce-069e-435a-b364-c2f493169126/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 07:39:19,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330432ce-069e-435a-b364-c2f493169126/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 07:39:19,349 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:39:19,350 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:19,350 INFO L85 PathProgramCache]: Analyzing trace with hash -1097840993, now seen corresponding path program 1 times [2023-11-19 07:39:19,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:39:19,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1521154281] [2023-11-19 07:39:19,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:19,352 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 07:39:19,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330432ce-069e-435a-b364-c2f493169126/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:39:19,354 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330432ce-069e-435a-b364-c2f493169126/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 07:39:19,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330432ce-069e-435a-b364-c2f493169126/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 07:39:19,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:19,530 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-19 07:39:19,543 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:39:23,586 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 170 proven. 27 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-11-19 07:39:23,586 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:39:25,155 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-19 07:39:25,155 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:39:25,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1521154281] [2023-11-19 07:39:25,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1521154281] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-19 07:39:25,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:39:25,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [18] total 25 [2023-11-19 07:39:25,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300702208] [2023-11-19 07:39:25,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:25,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:39:25,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:39:25,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:39:25,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=478, Unknown=0, NotChecked=0, Total=600 [2023-11-19 07:39:25,162 INFO L87 Difference]: Start difference. First operand 34 states and 45 transitions. Second operand has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 8 states have internal predecessors, (23), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-19 07:39:26,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:39:26,149 INFO L93 Difference]: Finished difference Result 88 states and 119 transitions. [2023-11-19 07:39:26,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-19 07:39:26,150 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 8 states have internal predecessors, (23), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 72 [2023-11-19 07:39:26,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:39:26,153 INFO L225 Difference]: With dead ends: 88 [2023-11-19 07:39:26,153 INFO L226 Difference]: Without dead ends: 86 [2023-11-19 07:39:26,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=166, Invalid=704, Unknown=0, NotChecked=0, Total=870 [2023-11-19 07:39:26,155 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 125 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-19 07:39:26,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 253 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-19 07:39:26,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2023-11-19 07:39:26,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 41. [2023-11-19 07:39:26,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 27 states have (on average 1.0740740740740742) internal successors, (29), 27 states have internal predecessors, (29), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-19 07:39:26,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 51 transitions. [2023-11-19 07:39:26,174 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 51 transitions. Word has length 72 [2023-11-19 07:39:26,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:39:26,175 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 51 transitions. [2023-11-19 07:39:26,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 8 states have internal predecessors, (23), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-19 07:39:26,175 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 51 transitions. [2023-11-19 07:39:26,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-19 07:39:26,181 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:39:26,182 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] [2023-11-19 07:39:26,186 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330432ce-069e-435a-b364-c2f493169126/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)] Ended with exit code 0 [2023-11-19 07:39:26,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330432ce-069e-435a-b364-c2f493169126/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 07:39:26,386 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:39:26,387 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:26,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1095993951, now seen corresponding path program 1 times [2023-11-19 07:39:26,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:39:26,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1585699059] [2023-11-19 07:39:26,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:26,388 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 07:39:26,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330432ce-069e-435a-b364-c2f493169126/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:39:26,389 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330432ce-069e-435a-b364-c2f493169126/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 07:39:26,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330432ce-069e-435a-b364-c2f493169126/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 07:39:26,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:26,541 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-19 07:39:26,554 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:39:30,246 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 181 proven. 21 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-19 07:39:30,246 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:39:32,459 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 69 proven. 51 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-11-19 07:39:32,459 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:39:32,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1585699059] [2023-11-19 07:39:32,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1585699059] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:39:32,460 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:39:32,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 37 [2023-11-19 07:39:32,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669088426] [2023-11-19 07:39:32,461 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:39:32,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2023-11-19 07:39:32,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:39:32,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2023-11-19 07:39:32,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=1026, Unknown=0, NotChecked=0, Total=1332 [2023-11-19 07:39:32,465 INFO L87 Difference]: Start difference. First operand 41 states and 51 transitions. Second operand has 37 states, 37 states have (on average 1.7837837837837838) internal successors, (66), 35 states have internal predecessors, (66), 6 states have call successors, (18), 5 states have call predecessors, (18), 14 states have return successors, (19), 8 states have call predecessors, (19), 6 states have call successors, (19) [2023-11-19 07:39:36,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:39:36,656 INFO L93 Difference]: Finished difference Result 98 states and 114 transitions. [2023-11-19 07:39:36,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-11-19 07:39:36,658 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 1.7837837837837838) internal successors, (66), 35 states have internal predecessors, (66), 6 states have call successors, (18), 5 states have call predecessors, (18), 14 states have return successors, (19), 8 states have call predecessors, (19), 6 states have call successors, (19) Word has length 72 [2023-11-19 07:39:36,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:39:36,659 INFO L225 Difference]: With dead ends: 98 [2023-11-19 07:39:36,659 INFO L226 Difference]: Without dead ends: 0 [2023-11-19 07:39:36,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 108 SyntacticMatches, 1 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1545 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=1422, Invalid=4278, Unknown=0, NotChecked=0, Total=5700 [2023-11-19 07:39:36,665 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 108 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:39:36,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 186 Invalid, 730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 651 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-19 07:39:36,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-19 07:39:36,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-19 07:39:36,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:39:36,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-19 07:39:36,667 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 72 [2023-11-19 07:39:36,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:39:36,668 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:39:36,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 1.7837837837837838) internal successors, (66), 35 states have internal predecessors, (66), 6 states have call successors, (18), 5 states have call predecessors, (18), 14 states have return successors, (19), 8 states have call predecessors, (19), 6 states have call successors, (19) [2023-11-19 07:39:36,669 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-19 07:39:36,669 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 07:39:36,672 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 07:39:36,681 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330432ce-069e-435a-b364-c2f493169126/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-11-19 07:39:36,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330432ce-069e-435a-b364-c2f493169126/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 07:39:36,878 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-19 07:39:38,264 INFO L895 garLoopResultBuilder]: At program point L56(line 56) the Hoare annotation is: (and (bvsle ((_ zero_extend 24) ~var_1_5~0) (_ bv0 32)) (bvsle ((_ zero_extend 24) ~var_1_4~0) (_ bv0 32)) (fp.eq ~var_1_9~0 ~var_1_9~0) (bvsle ((_ zero_extend 24) ~var_1_6~0) (_ bv0 32))) [2023-11-19 07:39:38,264 INFO L895 garLoopResultBuilder]: At program point L56-1(line 56) the Hoare annotation is: (and (bvsle ((_ zero_extend 24) ~var_1_5~0) (_ bv0 32)) (bvsle ((_ zero_extend 24) ~var_1_4~0) (_ bv0 32)) (fp.eq ~var_1_9~0 ~var_1_9~0) (bvsle ((_ zero_extend 24) ~var_1_6~0) (_ bv0 32)) (bvsge ((_ zero_extend 24) ~var_1_7~0) (_ bv1 32))) [2023-11-19 07:39:38,265 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-11-19 07:39:38,265 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-11-19 07:39:38,265 INFO L899 garLoopResultBuilder]: For program point L48(line 48) no Hoare annotation was computed. [2023-11-19 07:39:38,265 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-11-19 07:39:38,265 INFO L895 garLoopResultBuilder]: At program point L44(line 44) the Hoare annotation is: (and (bvsle ((_ zero_extend 24) ~var_1_5~0) (_ bv0 32)) (bvsle ((_ zero_extend 24) ~var_1_4~0) (_ bv0 32)) (bvsle ((_ zero_extend 24) ~var_1_6~0) (_ bv0 32)) (bvsge ((_ zero_extend 24) ~var_1_7~0) (_ bv1 32)) (let ((.cse0 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (.cse1 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))) (or (and (fp.geq ~var_1_9~0 (fp.neg .cse0)) (fp.leq ~var_1_9~0 (fp.neg .cse1))) (and (fp.leq ~var_1_9~0 .cse0) (fp.geq ~var_1_9~0 .cse1))))) [2023-11-19 07:39:38,266 INFO L895 garLoopResultBuilder]: At program point L44-1(line 44) the Hoare annotation is: (and (bvsle ((_ zero_extend 24) ~var_1_5~0) (_ bv0 32)) (bvsle ((_ zero_extend 24) ~var_1_4~0) (_ bv0 32)) (bvsle ((_ zero_extend 24) ~var_1_6~0) (_ bv0 32)) (bvsge ((_ zero_extend 24) ~var_1_7~0) (_ bv1 32)) (let ((.cse0 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (.cse1 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))) (or (and (fp.geq ~var_1_9~0 (fp.neg .cse0)) (fp.leq ~var_1_9~0 (fp.neg .cse1))) (and (fp.leq ~var_1_9~0 .cse0) (fp.geq ~var_1_9~0 .cse1))))) [2023-11-19 07:39:38,266 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 67 78) no Hoare annotation was computed. [2023-11-19 07:39:38,266 INFO L899 garLoopResultBuilder]: For program point L32(lines 32 41) no Hoare annotation was computed. [2023-11-19 07:39:38,266 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-19 07:39:38,266 INFO L899 garLoopResultBuilder]: For program point L61(lines 61 62) no Hoare annotation was computed. [2023-11-19 07:39:38,267 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-19 07:39:38,267 INFO L899 garLoopResultBuilder]: For program point L57(line 57) no Hoare annotation was computed. [2023-11-19 07:39:38,267 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-11-19 07:39:38,267 INFO L895 garLoopResultBuilder]: At program point L53(line 53) the Hoare annotation is: (and (bvsle ((_ zero_extend 24) ~var_1_5~0) (_ bv0 32)) (bvsle ((_ zero_extend 24) ~var_1_4~0) (_ bv0 32)) (or (not (= ~var_1_7~0 (_ bv0 8))) (not (= |assume_abort_if_not_#in~cond| (_ bv0 32))) (not (bvsle ((_ zero_extend 24) ~var_1_6~0) (_ bv0 32)))) (fp.eq ~var_1_9~0 ~var_1_9~0)) [2023-11-19 07:39:38,268 INFO L895 garLoopResultBuilder]: At program point L53-1(line 53) the Hoare annotation is: (and (bvsle ((_ zero_extend 24) ~var_1_5~0) (_ bv0 32)) (bvsle ((_ zero_extend 24) ~var_1_4~0) (_ bv0 32)) (or (not (= ~var_1_7~0 (_ bv0 8))) (not (= |assume_abort_if_not_#in~cond| (_ bv0 32))) (not (bvsle ((_ zero_extend 24) ~var_1_6~0) (_ bv0 32)))) (fp.eq ~var_1_9~0 ~var_1_9~0)) [2023-11-19 07:39:38,268 INFO L899 garLoopResultBuilder]: For program point property_returnLabel#1(lines 63 66) no Hoare annotation was computed. [2023-11-19 07:39:38,268 INFO L899 garLoopResultBuilder]: For program point L45(line 45) no Hoare annotation was computed. [2023-11-19 07:39:38,268 INFO L895 garLoopResultBuilder]: At program point L70-2(lines 70 76) the Hoare annotation is: (and (bvsle ((_ zero_extend 24) ~var_1_5~0) (_ bv0 32)) (bvsle ((_ zero_extend 24) ~var_1_4~0) (_ bv0 32)) (bvsle ((_ zero_extend 24) ~var_1_6~0) (_ bv0 32)) (bvsge ((_ zero_extend 24) ~var_1_7~0) (_ bv1 32)) (let ((.cse0 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (.cse1 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))) (or (and (fp.geq ~var_1_9~0 (fp.neg .cse0)) (fp.leq ~var_1_9~0 (fp.neg .cse1))) (and (fp.leq ~var_1_9~0 .cse0) (fp.geq ~var_1_9~0 .cse1))))) [2023-11-19 07:39:38,269 INFO L899 garLoopResultBuilder]: For program point L70-3(lines 70 76) no Hoare annotation was computed. [2023-11-19 07:39:38,269 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-19 07:39:38,269 INFO L899 garLoopResultBuilder]: For program point L54(line 54) no Hoare annotation was computed. [2023-11-19 07:39:38,269 INFO L895 garLoopResultBuilder]: At program point L50(line 50) the Hoare annotation is: (let ((.cse0 (not (bvsle ((_ zero_extend 24) ~var_1_5~0) (_ bv0 32)))) (.cse1 (not (= |assume_abort_if_not_#in~cond| (_ bv0 32))))) (and (or (not (= ~var_1_7~0 (_ bv0 8))) .cse0 .cse1) (or .cse0 .cse1 (bvsle ((_ zero_extend 24) ~var_1_6~0) (_ bv0 32))) (bvsle ((_ zero_extend 24) ~var_1_4~0) (_ bv0 32)) (fp.eq ~var_1_9~0 ~var_1_9~0))) [2023-11-19 07:39:38,270 INFO L895 garLoopResultBuilder]: At program point L50-1(line 50) the Hoare annotation is: (let ((.cse0 (not (bvsle ((_ zero_extend 24) ~var_1_5~0) (_ bv0 32)))) (.cse1 (not (= |assume_abort_if_not_#in~cond| (_ bv0 32))))) (and (or (not (= ~var_1_7~0 (_ bv0 8))) .cse0 .cse1) (or .cse0 .cse1 (bvsle ((_ zero_extend 24) ~var_1_6~0) (_ bv0 32))) (bvsle ((_ zero_extend 24) ~var_1_4~0) (_ bv0 32)) (fp.eq ~var_1_9~0 ~var_1_9~0))) [2023-11-19 07:39:38,270 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-19 07:39:38,270 INFO L899 garLoopResultBuilder]: For program point L34(lines 34 40) no Hoare annotation was computed. [2023-11-19 07:39:38,270 INFO L899 garLoopResultBuilder]: For program point L30(lines 30 31) no Hoare annotation was computed. [2023-11-19 07:39:38,271 INFO L895 garLoopResultBuilder]: At program point L59(line 59) the Hoare annotation is: (and (bvsle ((_ zero_extend 24) ~var_1_5~0) (_ bv0 32)) (bvsle ((_ zero_extend 24) ~var_1_4~0) (_ bv0 32)) (bvsle ((_ zero_extend 24) ~var_1_6~0) (_ bv0 32)) (bvsge ((_ zero_extend 24) ~var_1_7~0) (_ bv1 32))) [2023-11-19 07:39:38,271 INFO L899 garLoopResultBuilder]: For program point L59-1(lines 42 60) no Hoare annotation was computed. [2023-11-19 07:39:38,271 INFO L899 garLoopResultBuilder]: For program point L51(line 51) no Hoare annotation was computed. [2023-11-19 07:39:38,271 INFO L895 garLoopResultBuilder]: At program point L47(line 47) the Hoare annotation is: (let ((.cse0 (not (bvsle ((_ zero_extend 24) ~var_1_4~0) (_ bv0 32)))) (.cse1 (not (= |assume_abort_if_not_#in~cond| (_ bv0 32))))) (and (or (not (= ~var_1_7~0 (_ bv0 8))) .cse0 .cse1) (fp.eq ~var_1_9~0 ~var_1_9~0) (or .cse0 .cse1 (bvsle ((_ zero_extend 24) ~var_1_6~0) (_ bv0 32))) (or .cse0 (bvsle ((_ zero_extend 24) ~var_1_5~0) (_ bv0 32)) .cse1))) [2023-11-19 07:39:38,272 INFO L895 garLoopResultBuilder]: At program point L47-1(line 47) the Hoare annotation is: (let ((.cse0 (not (bvsle ((_ zero_extend 24) ~var_1_4~0) (_ bv0 32)))) (.cse1 (not (= |assume_abort_if_not_#in~cond| (_ bv0 32))))) (and (or (not (= ~var_1_7~0 (_ bv0 8))) .cse0 .cse1) (fp.eq ~var_1_9~0 ~var_1_9~0) (or .cse0 .cse1 (bvsle ((_ zero_extend 24) ~var_1_6~0) (_ bv0 32))) (or .cse0 (bvsle ((_ zero_extend 24) ~var_1_5~0) (_ bv0 32)) .cse1))) [2023-11-19 07:39:38,272 INFO L899 garLoopResultBuilder]: For program point L35(lines 35 39) no Hoare annotation was computed. [2023-11-19 07:39:38,272 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-11-19 07:39:38,272 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-11-19 07:39:38,272 INFO L899 garLoopResultBuilder]: For program point L20-2(line 20) no Hoare annotation was computed. [2023-11-19 07:39:38,273 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-11-19 07:39:38,276 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-19 07:39:38,279 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:39:38,290 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:39:38 BoogieIcfgContainer [2023-11-19 07:39:38,291 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:39:38,291 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:39:38,292 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:39:38,292 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:39:38,293 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:39:18" (3/4) ... [2023-11-19 07:39:38,295 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 07:39:38,298 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-19 07:39:38,303 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-11-19 07:39:38,303 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-19 07:39:38,304 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 07:39:38,304 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 07:39:38,417 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330432ce-069e-435a-b364-c2f493169126/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:39:38,418 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330432ce-069e-435a-b364-c2f493169126/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 07:39:38,418 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:39:38,419 INFO L158 Benchmark]: Toolchain (without parser) took 20761.52ms. Allocated memory was 77.6MB in the beginning and 323.0MB in the end (delta: 245.4MB). Free memory was 49.6MB in the beginning and 148.4MB in the end (delta: -98.8MB). Peak memory consumption was 145.9MB. Max. memory is 16.1GB. [2023-11-19 07:39:38,419 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 77.6MB. Free memory is still 53.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:39:38,420 INFO L158 Benchmark]: CACSL2BoogieTranslator took 323.59ms. Allocated memory is still 77.6MB. Free memory was 49.6MB in the beginning and 37.6MB in the end (delta: 12.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 07:39:38,420 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.67ms. Allocated memory is still 77.6MB. Free memory was 37.6MB in the beginning and 35.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:39:38,420 INFO L158 Benchmark]: Boogie Preprocessor took 75.17ms. Allocated memory is still 77.6MB. Free memory was 35.9MB in the beginning and 55.9MB in the end (delta: -20.1MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2023-11-19 07:39:38,421 INFO L158 Benchmark]: RCFGBuilder took 384.50ms. Allocated memory is still 77.6MB. Free memory was 55.9MB in the beginning and 44.0MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 07:39:38,421 INFO L158 Benchmark]: TraceAbstraction took 19775.55ms. Allocated memory was 77.6MB in the beginning and 323.0MB in the end (delta: 245.4MB). Free memory was 43.4MB in the beginning and 153.7MB in the end (delta: -110.3MB). Peak memory consumption was 134.1MB. Max. memory is 16.1GB. [2023-11-19 07:39:38,422 INFO L158 Benchmark]: Witness Printer took 126.53ms. Allocated memory is still 323.0MB. Free memory was 153.7MB in the beginning and 148.4MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-19 07:39:38,424 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 77.6MB. Free memory is still 53.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 323.59ms. Allocated memory is still 77.6MB. Free memory was 49.6MB in the beginning and 37.6MB in the end (delta: 12.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.67ms. Allocated memory is still 77.6MB. Free memory was 37.6MB in the beginning and 35.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 75.17ms. Allocated memory is still 77.6MB. Free memory was 35.9MB in the beginning and 55.9MB in the end (delta: -20.1MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * RCFGBuilder took 384.50ms. Allocated memory is still 77.6MB. Free memory was 55.9MB in the beginning and 44.0MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 19775.55ms. Allocated memory was 77.6MB in the beginning and 323.0MB in the end (delta: 245.4MB). Free memory was 43.4MB in the beginning and 153.7MB in the end (delta: -110.3MB). Peak memory consumption was 134.1MB. Max. memory is 16.1GB. * Witness Printer took 126.53ms. Allocated memory is still 323.0MB. Free memory was 153.7MB in the beginning and 148.4MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 19.7s, OverallIterations: 3, TraceHistogramMax: 11, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 236 SdHoareTripleChecker+Valid, 2.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 233 mSDsluCounter, 484 SdHoareTripleChecker+Invalid, 1.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 322 mSDsCounter, 118 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 803 IncrementalHoareTripleChecker+Invalid, 921 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 118 mSolverCounterUnsat, 162 mSDtfsCounter, 803 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 402 GetRequests, 299 SyntacticMatches, 1 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1770 ImplicationChecksByTransitivity, 5.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred in iteration=2, InterpolantAutomatonStates: 64, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 45 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 13 LocationsWithAnnotation, 45 PreInvPairs, 69 NumberOfFragments, 396 HoareAnnotationTreeSize, 45 FomulaSimplifications, 258 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 13 FomulaSimplificationsInter, 1782 FormulaSimplificationTreeSizeReductionInter, 1.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 11.6s InterpolantComputationTime, 215 NumberOfCodeBlocks, 215 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 354 ConstructedInterpolants, 0 QuantifiedInterpolants, 2210 SizeOfPredicates, 43 NumberOfNonLiveVariables, 352 ConjunctsInSsa, 43 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 1001/1100 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 70]: Loop Invariant Derived loop invariant: ((((var_1_5 <= 0) && (var_1_4 <= 0)) && (var_1_6 <= 0)) && (var_1_7 >= 1)) RESULT: Ultimate proved your program to be correct! [2023-11-19 07:39:38,472 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330432ce-069e-435a-b364-c2f493169126/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE