./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-25.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b 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_5e338799-1223-4968-952d-3f65e2dc1f08/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e338799-1223-4968-952d-3f65e2dc1f08/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e338799-1223-4968-952d-3f65e2dc1f08/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e338799-1223-4968-952d-3f65e2dc1f08/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-25.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e338799-1223-4968-952d-3f65e2dc1f08/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e338799-1223-4968-952d-3f65e2dc1f08/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 942fc1721d9d68198092543c6d2644725032e77c472db86e1b213e7c4933ab1c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:58:53,701 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:58:53,776 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e338799-1223-4968-952d-3f65e2dc1f08/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-06 22:58:53,792 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:58:53,793 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:58:53,832 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:58:53,832 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:58:53,833 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:58:53,834 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:58:53,839 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:58:53,840 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:58:53,840 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:58:53,840 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:58:53,842 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:58:53,842 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:58:53,843 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:58:53,843 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:58:53,844 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:58:53,844 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:58:53,844 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:58:53,845 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:58:53,845 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:58:53,845 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:58:53,847 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:58:53,847 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:58:53,848 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:58:53,849 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:58:53,849 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:58:53,849 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:58:53,850 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:58:53,851 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:58:53,851 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:58:53,851 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:58:53,852 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:58:53,852 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:58:53,852 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:58:53,852 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:58:53,852 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:58:53,853 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:58:53,853 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_5e338799-1223-4968-952d-3f65e2dc1f08/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e338799-1223-4968-952d-3f65e2dc1f08/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 942fc1721d9d68198092543c6d2644725032e77c472db86e1b213e7c4933ab1c [2023-11-06 22:58:54,176 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:58:54,198 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:58:54,203 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:58:54,204 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:58:54,205 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:58:54,206 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e338799-1223-4968-952d-3f65e2dc1f08/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-25.i [2023-11-06 22:58:57,231 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:58:57,548 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:58:57,549 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e338799-1223-4968-952d-3f65e2dc1f08/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-25.i [2023-11-06 22:58:57,557 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e338799-1223-4968-952d-3f65e2dc1f08/bin/uautomizer-verify-WvqO1wxjHP/data/8784c6704/961086f4daa048139e754f486bf33a5b/FLAGf5a6a426c [2023-11-06 22:58:57,581 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e338799-1223-4968-952d-3f65e2dc1f08/bin/uautomizer-verify-WvqO1wxjHP/data/8784c6704/961086f4daa048139e754f486bf33a5b [2023-11-06 22:58:57,588 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:58:57,592 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:58:57,599 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:58:57,599 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:58:57,604 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:58:57,608 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:58:57" (1/1) ... [2023-11-06 22:58:57,609 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10656fcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:57, skipping insertion in model container [2023-11-06 22:58:57,610 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:58:57" (1/1) ... [2023-11-06 22:58:57,635 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:58:57,800 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_5e338799-1223-4968-952d-3f65e2dc1f08/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-25.i[915,928] [2023-11-06 22:58:57,824 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:58:57,835 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:58:57,846 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_5e338799-1223-4968-952d-3f65e2dc1f08/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-25.i[915,928] [2023-11-06 22:58:57,857 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:58:57,876 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:58:57,877 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:57 WrapperNode [2023-11-06 22:58:57,877 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:58:57,878 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:58:57,878 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:58:57,878 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:58:57,886 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:57" (1/1) ... [2023-11-06 22:58:57,894 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:57" (1/1) ... [2023-11-06 22:58:57,917 INFO L138 Inliner]: procedures = 26, calls = 19, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 65 [2023-11-06 22:58:57,918 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:58:57,918 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:58:57,919 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:58:57,919 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:58:57,929 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:57" (1/1) ... [2023-11-06 22:58:57,929 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:57" (1/1) ... [2023-11-06 22:58:57,931 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:57" (1/1) ... [2023-11-06 22:58:57,932 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:57" (1/1) ... [2023-11-06 22:58:57,938 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:57" (1/1) ... [2023-11-06 22:58:57,942 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:57" (1/1) ... [2023-11-06 22:58:57,943 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:57" (1/1) ... [2023-11-06 22:58:57,945 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:57" (1/1) ... [2023-11-06 22:58:57,947 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:58:57,948 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:58:57,948 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:58:57,949 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:58:57,950 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:57" (1/1) ... [2023-11-06 22:58:57,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:58:57,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e338799-1223-4968-952d-3f65e2dc1f08/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:58:58,008 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e338799-1223-4968-952d-3f65e2dc1f08/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:58:58,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e338799-1223-4968-952d-3f65e2dc1f08/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:58:58,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:58:58,053 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 22:58:58,054 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 22:58:58,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:58:58,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:58:58,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:58:58,126 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:58:58,129 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:58:58,313 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:58:58,319 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:58:58,319 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:58:58,321 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:58:58 BoogieIcfgContainer [2023-11-06 22:58:58,321 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:58:58,324 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:58:58,324 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:58:58,326 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:58:58,327 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:58:57" (1/3) ... [2023-11-06 22:58:58,327 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@599327ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:58:58, skipping insertion in model container [2023-11-06 22:58:58,327 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:57" (2/3) ... [2023-11-06 22:58:58,328 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@599327ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:58:58, skipping insertion in model container [2023-11-06 22:58:58,328 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:58:58" (3/3) ... [2023-11-06 22:58:58,329 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-25.i [2023-11-06 22:58:58,344 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:58:58,344 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:58:58,394 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:58:58,401 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=LoopsAndPotentialCycles, 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;@23cce1df, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:58:58,401 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:58:58,405 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 24 states have (on average 1.375) internal successors, (33), 25 states have internal predecessors, (33), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-06 22:58:58,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-06 22:58:58,415 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:58:58,415 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:58:58,416 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:58:58,421 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:58:58,422 INFO L85 PathProgramCache]: Analyzing trace with hash 941058505, now seen corresponding path program 1 times [2023-11-06 22:58:58,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:58:58,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946567085] [2023-11-06 22:58:58,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:58:58,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:58:58,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:58,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-06 22:58:58,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:58,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-06 22:58:58,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:58,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:58:58,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:58,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-06 22:58:58,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:58,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-06 22:58:58,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:58,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-06 22:58:58,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:58,646 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-06 22:58:58,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:58:58,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946567085] [2023-11-06 22:58:58,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946567085] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:58:58,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:58:58,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:58:58,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314560869] [2023-11-06 22:58:58,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:58:58,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:58:58,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:58:58,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:58:58,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:58:58,688 INFO L87 Difference]: Start difference. First operand has 33 states, 24 states have (on average 1.375) internal successors, (33), 25 states have internal predecessors, (33), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-06 22:58:58,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:58:58,711 INFO L93 Difference]: Finished difference Result 59 states and 90 transitions. [2023-11-06 22:58:58,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:58:58,713 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) Word has length 44 [2023-11-06 22:58:58,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:58:58,719 INFO L225 Difference]: With dead ends: 59 [2023-11-06 22:58:58,720 INFO L226 Difference]: Without dead ends: 29 [2023-11-06 22:58:58,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:58:58,726 INFO L413 NwaCegarLoop]: 38 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, 38 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 [2023-11-06 22:58:58,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:58:58,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2023-11-06 22:58:58,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2023-11-06 22:58:58,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 21 states have internal predecessors, (26), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-06 22:58:58,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 38 transitions. [2023-11-06 22:58:58,763 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 38 transitions. Word has length 44 [2023-11-06 22:58:58,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:58:58,764 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 38 transitions. [2023-11-06 22:58:58,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-06 22:58:58,764 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 38 transitions. [2023-11-06 22:58:58,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-06 22:58:58,767 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:58:58,767 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:58:58,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:58:58,768 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:58:58,768 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:58:58,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1760285773, now seen corresponding path program 1 times [2023-11-06 22:58:58,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:58:58,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638694115] [2023-11-06 22:58:58,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:58:58,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:58:58,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:58:58,845 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:58:58,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:58:58,938 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:58:58,938 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 22:58:58,940 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-06 22:58:58,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:58:58,946 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-06 22:58:58,949 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:58:58,984 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:58:58 BoogieIcfgContainer [2023-11-06 22:58:58,984 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:58:58,985 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:58:58,985 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:58:58,985 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:58:58,986 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:58:58" (3/4) ... [2023-11-06 22:58:58,988 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-06 22:58:58,989 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:58:58,990 INFO L158 Benchmark]: Toolchain (without parser) took 1397.97ms. Allocated memory is still 151.0MB. Free memory was 119.8MB in the beginning and 116.4MB in the end (delta: 3.4MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2023-11-06 22:58:58,990 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 119.5MB. Free memory is still 93.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:58:58,991 INFO L158 Benchmark]: CACSL2BoogieTranslator took 278.69ms. Allocated memory is still 151.0MB. Free memory was 119.5MB in the beginning and 108.7MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 22:58:58,992 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.80ms. Allocated memory is still 151.0MB. Free memory was 108.7MB in the beginning and 106.8MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:58:58,992 INFO L158 Benchmark]: Boogie Preprocessor took 28.93ms. Allocated memory is still 151.0MB. Free memory was 106.8MB in the beginning and 105.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:58:58,993 INFO L158 Benchmark]: RCFGBuilder took 372.88ms. Allocated memory is still 151.0MB. Free memory was 105.3MB in the beginning and 94.1MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 22:58:58,994 INFO L158 Benchmark]: TraceAbstraction took 660.39ms. Allocated memory is still 151.0MB. Free memory was 93.4MB in the beginning and 116.4MB in the end (delta: -23.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:58:58,994 INFO L158 Benchmark]: Witness Printer took 4.27ms. Allocated memory is still 151.0MB. Free memory is still 116.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:58:58,997 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 119.5MB. Free memory is still 93.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 278.69ms. Allocated memory is still 151.0MB. Free memory was 119.5MB in the beginning and 108.7MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.80ms. Allocated memory is still 151.0MB. Free memory was 108.7MB in the beginning and 106.8MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.93ms. Allocated memory is still 151.0MB. Free memory was 106.8MB in the beginning and 105.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 372.88ms. Allocated memory is still 151.0MB. Free memory was 105.3MB in the beginning and 94.1MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 660.39ms. Allocated memory is still 151.0MB. Free memory was 93.4MB in the beginning and 116.4MB in the end (delta: -23.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.27ms. Allocated memory is still 151.0MB. Free memory is still 116.4MB. 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 someBinaryDOUBLEComparisonOperation at line 61. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] double var_1_1 = 0.742; [L23] unsigned char var_1_2 = 1; [L24] unsigned char var_1_3 = 0; [L25] double var_1_4 = 1.625; [L26] double var_1_5 = 8.25; VAL [isInitial=0, var_1_1=371/500, var_1_2=1, var_1_3=0, var_1_4=13/8, var_1_5=33/4] [L65] isInitial = 1 [L66] FCALL initially() [L67] COND TRUE 1 [L68] FCALL updateLastVariables() [L69] CALL updateVariables() [L47] var_1_2 = __VERIFIER_nondet_uchar() [L48] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=371/500, var_1_3=0, var_1_4=13/8, var_1_5=33/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=371/500, var_1_3=0, var_1_4=13/8, var_1_5=33/4] [L48] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_1=371/500, var_1_3=0, var_1_4=13/8, var_1_5=33/4] [L49] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_1=371/500, var_1_2=0, var_1_3=0, var_1_4=13/8, var_1_5=33/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=371/500, var_1_2=0, var_1_3=0, var_1_4=13/8, var_1_5=33/4] [L49] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_1=371/500, var_1_2=0, var_1_3=0, var_1_4=13/8, var_1_5=33/4] [L50] var_1_3 = __VERIFIER_nondet_uchar() [L51] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=371/500, var_1_2=0, var_1_3=1, var_1_4=13/8, var_1_5=33/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=371/500, var_1_2=0, var_1_3=1, var_1_4=13/8, var_1_5=33/4] [L51] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_1=371/500, var_1_2=0, var_1_3=1, var_1_4=13/8, var_1_5=33/4] [L52] CALL assume_abort_if_not(var_1_3 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_1=371/500, var_1_2=0, var_1_3=1, var_1_4=13/8, var_1_5=33/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=371/500, var_1_2=0, var_1_3=1, var_1_4=13/8, var_1_5=33/4] [L52] RET assume_abort_if_not(var_1_3 <= 1) VAL [isInitial=1, var_1_1=371/500, var_1_2=0, var_1_3=1, var_1_4=13/8, var_1_5=33/4] [L53] var_1_4 = __VERIFIER_nondet_double() [L54] CALL assume_abort_if_not((var_1_4 >= -922337.2036854765600e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854765600e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=371/500, var_1_2=0, var_1_3=1, var_1_4=262, var_1_5=33/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=371/500, var_1_2=0, var_1_3=1, var_1_4=262, var_1_5=33/4] [L54] RET assume_abort_if_not((var_1_4 >= -922337.2036854765600e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854765600e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=371/500, var_1_2=0, var_1_3=1, var_1_4=262, var_1_5=33/4] [L55] var_1_5 = __VERIFIER_nondet_double() [L56] CALL assume_abort_if_not((var_1_5 >= -922337.2036854765600e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854765600e+12F && var_1_5 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=371/500, var_1_2=0, var_1_3=1, var_1_4=262, var_1_5=263] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=371/500, var_1_2=0, var_1_3=1, var_1_4=262, var_1_5=263] [L56] RET assume_abort_if_not((var_1_5 >= -922337.2036854765600e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854765600e+12F && var_1_5 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=371/500, var_1_2=0, var_1_3=1, var_1_4=262, var_1_5=263] [L69] RET updateVariables() [L70] CALL step() [L30] COND FALSE !(\read(var_1_2)) [L43] var_1_1 = var_1_5 VAL [isInitial=1, var_1_1=263, var_1_2=0, var_1_3=1, var_1_4=262, var_1_5=263] [L70] RET step() [L71] CALL, EXPR property() [L61-L62] return var_1_2 ? ((! var_1_3) ? (var_1_3 ? (var_1_1 == ((double) ((((var_1_4) < (((((var_1_5) < 0 ) ? -(var_1_5) : (var_1_5))))) ? (var_1_4) : (((((var_1_5) < 0 ) ? -(var_1_5) : (var_1_5)))))))) : 1) : ((var_1_5 <= var_1_4) ? (var_1_1 == ((double) var_1_4)) : (var_1_1 == ((double) 199.5)))) : (var_1_1 == ((double) var_1_5)) ; VAL [\result=0, isInitial=1, var_1_1=263, var_1_2=0, var_1_3=1, var_1_4=262, var_1_5=263] [L71] RET, EXPR property() [L71] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_1=263, var_1_2=0, var_1_3=1, var_1_4=262, var_1_5=263] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_1=263, var_1_2=0, var_1_3=1, var_1_4=262, var_1_5=263] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 6, 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, 38 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, 38 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred 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, 0.1s InterpolantComputationTime, 88 NumberOfCodeBlocks, 88 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 43 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 60/60 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 [2023-11-06 22:58:59,022 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e338799-1223-4968-952d-3f65e2dc1f08/bin/uautomizer-verify-WvqO1wxjHP/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_5e338799-1223-4968-952d-3f65e2dc1f08/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e338799-1223-4968-952d-3f65e2dc1f08/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e338799-1223-4968-952d-3f65e2dc1f08/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e338799-1223-4968-952d-3f65e2dc1f08/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-25.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e338799-1223-4968-952d-3f65e2dc1f08/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e338799-1223-4968-952d-3f65e2dc1f08/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 942fc1721d9d68198092543c6d2644725032e77c472db86e1b213e7c4933ab1c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:59:01,641 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:59:01,728 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e338799-1223-4968-952d-3f65e2dc1f08/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-06 22:59:01,735 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:59:01,735 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:59:01,766 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:59:01,766 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:59:01,767 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:59:01,768 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:59:01,768 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:59:01,769 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:59:01,770 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:59:01,770 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:59:01,771 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:59:01,772 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:59:01,772 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:59:01,773 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:59:01,773 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:59:01,774 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:59:01,774 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:59:01,775 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:59:01,776 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 22:59:01,776 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 22:59:01,776 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 22:59:01,777 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:59:01,777 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:59:01,778 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:59:01,778 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:59:01,778 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:59:01,779 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:59:01,779 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:59:01,780 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:59:01,780 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:59:01,780 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:59:01,780 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-06 22:59:01,781 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 22:59:01,781 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:59:01,781 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:59:01,781 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:59:01,782 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:59:01,782 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-06 22:59:01,782 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:59:01,782 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_5e338799-1223-4968-952d-3f65e2dc1f08/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e338799-1223-4968-952d-3f65e2dc1f08/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 942fc1721d9d68198092543c6d2644725032e77c472db86e1b213e7c4933ab1c [2023-11-06 22:59:02,174 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:59:02,199 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:59:02,203 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:59:02,205 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:59:02,205 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:59:02,207 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e338799-1223-4968-952d-3f65e2dc1f08/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-25.i [2023-11-06 22:59:05,375 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:59:05,707 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:59:05,708 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e338799-1223-4968-952d-3f65e2dc1f08/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-25.i [2023-11-06 22:59:05,716 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e338799-1223-4968-952d-3f65e2dc1f08/bin/uautomizer-verify-WvqO1wxjHP/data/952ebef0b/b01f9c794f5a4135a01c71da238f7cd5/FLAGdf52a97bf [2023-11-06 22:59:05,730 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e338799-1223-4968-952d-3f65e2dc1f08/bin/uautomizer-verify-WvqO1wxjHP/data/952ebef0b/b01f9c794f5a4135a01c71da238f7cd5 [2023-11-06 22:59:05,733 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:59:05,737 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:59:05,739 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:59:05,739 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:59:05,748 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:59:05,749 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:59:05" (1/1) ... [2023-11-06 22:59:05,753 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@544051d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:05, skipping insertion in model container [2023-11-06 22:59:05,754 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:59:05" (1/1) ... [2023-11-06 22:59:05,782 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:59:05,965 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_5e338799-1223-4968-952d-3f65e2dc1f08/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-25.i[915,928] [2023-11-06 22:59:05,993 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:59:06,010 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:59:06,024 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_5e338799-1223-4968-952d-3f65e2dc1f08/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-25.i[915,928] [2023-11-06 22:59:06,036 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:59:06,055 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:59:06,056 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:06 WrapperNode [2023-11-06 22:59:06,056 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:59:06,057 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:59:06,057 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:59:06,058 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:59:06,065 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:06" (1/1) ... [2023-11-06 22:59:06,076 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:06" (1/1) ... [2023-11-06 22:59:06,100 INFO L138 Inliner]: procedures = 27, calls = 19, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 65 [2023-11-06 22:59:06,100 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:59:06,101 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:59:06,101 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:59:06,102 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:59:06,111 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:06" (1/1) ... [2023-11-06 22:59:06,113 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:06" (1/1) ... [2023-11-06 22:59:06,118 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:06" (1/1) ... [2023-11-06 22:59:06,120 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:06" (1/1) ... [2023-11-06 22:59:06,130 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:06" (1/1) ... [2023-11-06 22:59:06,145 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:06" (1/1) ... [2023-11-06 22:59:06,149 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:06" (1/1) ... [2023-11-06 22:59:06,152 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:06" (1/1) ... [2023-11-06 22:59:06,164 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:59:06,165 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:59:06,165 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:59:06,165 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:59:06,166 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:06" (1/1) ... [2023-11-06 22:59:06,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:59:06,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e338799-1223-4968-952d-3f65e2dc1f08/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:59:06,202 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e338799-1223-4968-952d-3f65e2dc1f08/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:59:06,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e338799-1223-4968-952d-3f65e2dc1f08/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:59:06,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:59:06,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 22:59:06,257 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 22:59:06,258 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 22:59:06,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:59:06,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:59:06,340 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:59:06,342 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:59:06,558 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:59:06,565 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:59:06,565 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:59:06,567 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:59:06 BoogieIcfgContainer [2023-11-06 22:59:06,568 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:59:06,570 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:59:06,570 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:59:06,573 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:59:06,574 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:59:05" (1/3) ... [2023-11-06 22:59:06,574 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57241ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:59:06, skipping insertion in model container [2023-11-06 22:59:06,575 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:06" (2/3) ... [2023-11-06 22:59:06,575 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57241ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:59:06, skipping insertion in model container [2023-11-06 22:59:06,575 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:59:06" (3/3) ... [2023-11-06 22:59:06,578 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-25.i [2023-11-06 22:59:06,599 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:59:06,600 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:59:06,673 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:59:06,681 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=LoopsAndPotentialCycles, 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;@5a79eb70, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:59:06,682 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:59:06,687 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 24 states have (on average 1.375) internal successors, (33), 25 states have internal predecessors, (33), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-06 22:59:06,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-06 22:59:06,699 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:06,700 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:59:06,703 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:59:06,709 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:06,710 INFO L85 PathProgramCache]: Analyzing trace with hash 941058505, now seen corresponding path program 1 times [2023-11-06 22:59:06,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:59:06,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [346433976] [2023-11-06 22:59:06,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:06,728 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 [2023-11-06 22:59:06,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e338799-1223-4968-952d-3f65e2dc1f08/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:59:06,740 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e338799-1223-4968-952d-3f65e2dc1f08/bin/uautomizer-verify-WvqO1wxjHP/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) [2023-11-06 22:59:06,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e338799-1223-4968-952d-3f65e2dc1f08/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:59:06,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:06,968 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-06 22:59:06,975 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:59:07,021 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-06 22:59:07,023 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:59:07,024 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:59:07,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [346433976] [2023-11-06 22:59:07,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [346433976] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:59:07,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:59:07,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:59:07,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684109098] [2023-11-06 22:59:07,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:59:07,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:59:07,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:59:07,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:59:07,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:59:07,096 INFO L87 Difference]: Start difference. First operand has 33 states, 24 states have (on average 1.375) internal successors, (33), 25 states have internal predecessors, (33), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-06 22:59:07,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:07,134 INFO L93 Difference]: Finished difference Result 59 states and 90 transitions. [2023-11-06 22:59:07,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:59:07,137 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 44 [2023-11-06 22:59:07,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:07,146 INFO L225 Difference]: With dead ends: 59 [2023-11-06 22:59:07,146 INFO L226 Difference]: Without dead ends: 29 [2023-11-06 22:59:07,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:59:07,157 INFO L413 NwaCegarLoop]: 38 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, 38 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 [2023-11-06 22:59:07,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:59:07,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2023-11-06 22:59:07,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2023-11-06 22:59:07,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 21 states have internal predecessors, (26), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-06 22:59:07,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 38 transitions. [2023-11-06 22:59:07,207 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 38 transitions. Word has length 44 [2023-11-06 22:59:07,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:07,207 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 38 transitions. [2023-11-06 22:59:07,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-06 22:59:07,208 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 38 transitions. [2023-11-06 22:59:07,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-06 22:59:07,211 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:07,211 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:59:07,230 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e338799-1223-4968-952d-3f65e2dc1f08/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:59:07,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e338799-1223-4968-952d-3f65e2dc1f08/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:59:07,425 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:59:07,425 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:07,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1760285773, now seen corresponding path program 1 times [2023-11-06 22:59:07,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:59:07,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [785574781] [2023-11-06 22:59:07,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:07,427 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 [2023-11-06 22:59:07,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e338799-1223-4968-952d-3f65e2dc1f08/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:59:07,457 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e338799-1223-4968-952d-3f65e2dc1f08/bin/uautomizer-verify-WvqO1wxjHP/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) [2023-11-06 22:59:07,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e338799-1223-4968-952d-3f65e2dc1f08/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:59:07,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:07,577 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-06 22:59:07,582 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:59:22,461 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-06 22:59:22,461 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:59:22,462 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:59:22,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [785574781] [2023-11-06 22:59:22,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [785574781] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:59:22,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:59:22,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 22:59:22,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030765604] [2023-11-06 22:59:22,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:59:22,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:59:22,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:59:22,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:59:22,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:59:22,466 INFO L87 Difference]: Start difference. First operand 29 states and 38 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-06 22:59:26,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:26,043 INFO L93 Difference]: Finished difference Result 59 states and 77 transitions. [2023-11-06 22:59:26,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-06 22:59:26,047 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 44 [2023-11-06 22:59:26,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:26,048 INFO L225 Difference]: With dead ends: 59 [2023-11-06 22:59:26,049 INFO L226 Difference]: Without dead ends: 57 [2023-11-06 22:59:26,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2023-11-06 22:59:26,051 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 62 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-06 22:59:26,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 177 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-06 22:59:26,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2023-11-06 22:59:26,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 36. [2023-11-06 22:59:26,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 27 states have internal predecessors, (32), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-06 22:59:26,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions. [2023-11-06 22:59:26,065 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 44 [2023-11-06 22:59:26,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:26,066 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions. [2023-11-06 22:59:26,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-06 22:59:26,066 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2023-11-06 22:59:26,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-06 22:59:26,068 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:26,069 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:59:26,088 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e338799-1223-4968-952d-3f65e2dc1f08/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:59:26,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e338799-1223-4968-952d-3f65e2dc1f08/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:59:26,283 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:59:26,284 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:26,284 INFO L85 PathProgramCache]: Analyzing trace with hash -796364099, now seen corresponding path program 1 times [2023-11-06 22:59:26,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:59:26,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1917389616] [2023-11-06 22:59:26,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:26,285 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 [2023-11-06 22:59:26,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e338799-1223-4968-952d-3f65e2dc1f08/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:59:26,286 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e338799-1223-4968-952d-3f65e2dc1f08/bin/uautomizer-verify-WvqO1wxjHP/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) [2023-11-06 22:59:26,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e338799-1223-4968-952d-3f65e2dc1f08/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:59:26,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:26,398 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:59:26,401 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:59:26,411 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-06 22:59:26,412 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:59:26,412 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:59:26,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1917389616] [2023-11-06 22:59:26,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1917389616] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:59:26,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:59:26,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:59:26,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817420392] [2023-11-06 22:59:26,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:59:26,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:59:26,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:59:26,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:59:26,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:59:26,415 INFO L87 Difference]: Start difference. First operand 36 states and 44 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-06 22:59:26,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:26,473 INFO L93 Difference]: Finished difference Result 84 states and 101 transitions. [2023-11-06 22:59:26,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:59:26,475 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 46 [2023-11-06 22:59:26,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:26,478 INFO L225 Difference]: With dead ends: 84 [2023-11-06 22:59:26,478 INFO L226 Difference]: Without dead ends: 51 [2023-11-06 22:59:26,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:59:26,483 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 18 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:59:26,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 66 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:59:26,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2023-11-06 22:59:26,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 48. [2023-11-06 22:59:26,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 36 states have (on average 1.1388888888888888) internal successors, (41), 37 states have internal predecessors, (41), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-06 22:59:26,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 57 transitions. [2023-11-06 22:59:26,508 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 57 transitions. Word has length 46 [2023-11-06 22:59:26,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:26,509 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 57 transitions. [2023-11-06 22:59:26,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-06 22:59:26,509 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 57 transitions. [2023-11-06 22:59:26,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-06 22:59:26,514 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:26,514 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:59:26,527 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e338799-1223-4968-952d-3f65e2dc1f08/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:59:26,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e338799-1223-4968-952d-3f65e2dc1f08/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:59:26,727 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:59:26,728 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:26,728 INFO L85 PathProgramCache]: Analyzing trace with hash -794517057, now seen corresponding path program 1 times [2023-11-06 22:59:26,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:59:26,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2107753411] [2023-11-06 22:59:26,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:26,729 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 [2023-11-06 22:59:26,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e338799-1223-4968-952d-3f65e2dc1f08/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:59:26,731 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e338799-1223-4968-952d-3f65e2dc1f08/bin/uautomizer-verify-WvqO1wxjHP/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) [2023-11-06 22:59:26,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e338799-1223-4968-952d-3f65e2dc1f08/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-06 22:59:26,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:26,839 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-06 22:59:26,842 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:59:30,342 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-06 22:59:30,342 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:59:30,342 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:59:30,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2107753411] [2023-11-06 22:59:30,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2107753411] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:59:30,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:59:30,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:59:30,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451500287] [2023-11-06 22:59:30,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:59:30,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:59:30,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:59:30,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:59:30,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:59:30,346 INFO L87 Difference]: Start difference. First operand 48 states and 57 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-06 22:59:30,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:30,581 INFO L93 Difference]: Finished difference Result 72 states and 89 transitions. [2023-11-06 22:59:30,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:59:30,582 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 46 [2023-11-06 22:59:30,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:30,585 INFO L225 Difference]: With dead ends: 72 [2023-11-06 22:59:30,585 INFO L226 Difference]: Without dead ends: 70 [2023-11-06 22:59:30,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:59:30,587 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 34 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:59:30,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 235 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:59:30,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2023-11-06 22:59:30,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 48. [2023-11-06 22:59:30,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 36 states have (on average 1.1111111111111112) internal successors, (40), 37 states have internal predecessors, (40), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-06 22:59:30,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 56 transitions. [2023-11-06 22:59:30,599 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 56 transitions. Word has length 46 [2023-11-06 22:59:30,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:30,600 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 56 transitions. [2023-11-06 22:59:30,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-06 22:59:30,600 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 56 transitions. [2023-11-06 22:59:30,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-06 22:59:30,601 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:30,602 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:59:30,617 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e338799-1223-4968-952d-3f65e2dc1f08/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-11-06 22:59:30,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e338799-1223-4968-952d-3f65e2dc1f08/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:59:30,815 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:59:30,815 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:30,815 INFO L85 PathProgramCache]: Analyzing trace with hash -559942723, now seen corresponding path program 1 times [2023-11-06 22:59:30,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:59:30,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [623473386] [2023-11-06 22:59:30,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:30,816 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 [2023-11-06 22:59:30,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e338799-1223-4968-952d-3f65e2dc1f08/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:59:30,818 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e338799-1223-4968-952d-3f65e2dc1f08/bin/uautomizer-verify-WvqO1wxjHP/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) [2023-11-06 22:59:30,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e338799-1223-4968-952d-3f65e2dc1f08/bin/uautomizer-verify-WvqO1wxjHP/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 (6)] Waiting until timeout for monitored process [2023-11-06 22:59:30,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:30,889 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-06 22:59:30,892 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:59:34,725 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 29 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-06 22:59:34,725 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:59:37,277 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-06 22:59:37,278 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:59:37,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [623473386] [2023-11-06 22:59:37,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [623473386] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-06 22:59:37,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:59:37,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 15 [2023-11-06 22:59:37,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304253094] [2023-11-06 22:59:37,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:59:37,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:59:37,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:59:37,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:59:37,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2023-11-06 22:59:37,281 INFO L87 Difference]: Start difference. First operand 48 states and 56 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-06 22:59:40,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:40,560 INFO L93 Difference]: Finished difference Result 79 states and 96 transitions. [2023-11-06 22:59:40,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-06 22:59:40,562 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 46 [2023-11-06 22:59:40,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:40,563 INFO L225 Difference]: With dead ends: 79 [2023-11-06 22:59:40,563 INFO L226 Difference]: Without dead ends: 77 [2023-11-06 22:59:40,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=75, Invalid=305, Unknown=0, NotChecked=0, Total=380 [2023-11-06 22:59:40,565 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 37 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:59:40,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 217 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-06 22:59:40,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2023-11-06 22:59:40,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 48. [2023-11-06 22:59:40,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 36 states have (on average 1.1111111111111112) internal successors, (40), 37 states have internal predecessors, (40), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-06 22:59:40,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 56 transitions. [2023-11-06 22:59:40,579 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 56 transitions. Word has length 46 [2023-11-06 22:59:40,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:40,580 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 56 transitions. [2023-11-06 22:59:40,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-06 22:59:40,581 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 56 transitions. [2023-11-06 22:59:40,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-06 22:59:40,582 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:40,582 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:59:40,601 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e338799-1223-4968-952d-3f65e2dc1f08/bin/uautomizer-verify-WvqO1wxjHP/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 (6)] Forceful destruction successful, exit code 0 [2023-11-06 22:59:40,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e338799-1223-4968-952d-3f65e2dc1f08/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:59:40,797 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:59:40,797 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:40,797 INFO L85 PathProgramCache]: Analyzing trace with hash -558095681, now seen corresponding path program 1 times [2023-11-06 22:59:40,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:59:40,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [837049246] [2023-11-06 22:59:40,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:40,798 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 [2023-11-06 22:59:40,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e338799-1223-4968-952d-3f65e2dc1f08/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:59:40,800 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e338799-1223-4968-952d-3f65e2dc1f08/bin/uautomizer-verify-WvqO1wxjHP/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) [2023-11-06 22:59:40,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e338799-1223-4968-952d-3f65e2dc1f08/bin/uautomizer-verify-WvqO1wxjHP/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 (7)] Waiting until timeout for monitored process [2023-11-06 22:59:40,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:40,884 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-06 22:59:40,887 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:59:42,678 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-06 22:59:42,678 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:59:42,678 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:59:42,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [837049246] [2023-11-06 22:59:42,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [837049246] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:59:42,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:59:42,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:59:42,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690603153] [2023-11-06 22:59:42,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:59:42,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:59:42,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:59:42,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:59:42,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:59:42,680 INFO L87 Difference]: Start difference. First operand 48 states and 56 transitions. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-06 22:59:43,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:43,123 INFO L93 Difference]: Finished difference Result 75 states and 92 transitions. [2023-11-06 22:59:43,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-06 22:59:43,124 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 46 [2023-11-06 22:59:43,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:43,125 INFO L225 Difference]: With dead ends: 75 [2023-11-06 22:59:43,125 INFO L226 Difference]: Without dead ends: 0 [2023-11-06 22:59:43,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:59:43,127 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 38 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:59:43,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 220 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:59:43,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-06 22:59:43,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-06 22:59:43,129 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) [2023-11-06 22:59:43,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-06 22:59:43,129 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 46 [2023-11-06 22:59:43,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:43,129 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 22:59:43,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-06 22:59:43,130 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-06 22:59:43,130 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-06 22:59:43,132 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-06 22:59:43,151 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e338799-1223-4968-952d-3f65e2dc1f08/bin/uautomizer-verify-WvqO1wxjHP/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 (7)] Ended with exit code 0 [2023-11-06 22:59:43,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e338799-1223-4968-952d-3f65e2dc1f08/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:59:43,348 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-06 22:59:50,622 INFO L899 garLoopResultBuilder]: For program point L31(lines 31 41) no Hoare annotation was computed. [2023-11-06 22:59:50,623 INFO L899 garLoopResultBuilder]: For program point L27(lines 27 28) no Hoare annotation was computed. [2023-11-06 22:59:50,623 INFO L902 garLoopResultBuilder]: At program point L56(line 56) the Hoare annotation is: true [2023-11-06 22:59:50,623 INFO L899 garLoopResultBuilder]: For program point L56-1(lines 46 57) no Hoare annotation was computed. [2023-11-06 22:59:50,623 INFO L899 garLoopResultBuilder]: For program point L52(line 52) no Hoare annotation was computed. [2023-11-06 22:59:50,623 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-11-06 22:59:50,623 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-11-06 22:59:50,624 INFO L895 garLoopResultBuilder]: At program point L48(line 48) the Hoare annotation is: (let ((.cse0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0))) (.cse1 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0))) (or (and (fp.leq ~var_1_5~0 ((_ to_fp 11 53) currentRoundingMode (fp.neg .cse0))) (fp.geq ~var_1_5~0 ((_ to_fp 11 53) currentRoundingMode (fp.neg .cse1)))) (and (fp.geq ~var_1_5~0 ((_ to_fp 11 53) currentRoundingMode .cse0)) (fp.leq ~var_1_5~0 ((_ to_fp 11 53) currentRoundingMode .cse1))))) [2023-11-06 22:59:50,624 INFO L895 garLoopResultBuilder]: At program point L19-3(line 19) the Hoare annotation is: (and (not (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32))) (let ((.cse0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0))) (.cse1 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0))) (or (and (fp.leq ~var_1_5~0 ((_ to_fp 11 53) currentRoundingMode (fp.neg .cse0))) (fp.geq ~var_1_5~0 ((_ to_fp 11 53) currentRoundingMode (fp.neg .cse1)))) (and (fp.geq ~var_1_5~0 ((_ to_fp 11 53) currentRoundingMode .cse0)) (fp.leq ~var_1_5~0 ((_ to_fp 11 53) currentRoundingMode .cse1)))))) [2023-11-06 22:59:50,624 INFO L895 garLoopResultBuilder]: At program point L48-1(line 48) the Hoare annotation is: (let ((.cse0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0))) (.cse1 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0))) (or (and (fp.leq ~var_1_5~0 ((_ to_fp 11 53) currentRoundingMode (fp.neg .cse0))) (fp.geq ~var_1_5~0 ((_ to_fp 11 53) currentRoundingMode (fp.neg .cse1)))) (and (fp.geq ~var_1_5~0 ((_ to_fp 11 53) currentRoundingMode .cse0)) (fp.leq ~var_1_5~0 ((_ to_fp 11 53) currentRoundingMode .cse1))))) [2023-11-06 22:59:50,624 INFO L895 garLoopResultBuilder]: At program point main_returnLabel#1(lines 64 75) the Hoare annotation is: false [2023-11-06 22:59:50,624 INFO L899 garLoopResultBuilder]: For program point L36(lines 36 40) no Hoare annotation was computed. [2023-11-06 22:59:50,624 INFO L899 garLoopResultBuilder]: For program point L32(lines 32 34) no Hoare annotation was computed. [2023-11-06 22:59:50,625 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-06 22:59:50,625 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-06 22:59:50,625 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-11-06 22:59:50,625 INFO L899 garLoopResultBuilder]: For program point L49(line 49) no Hoare annotation was computed. [2023-11-06 22:59:50,625 INFO L895 garLoopResultBuilder]: At program point property_returnLabel#1(lines 60 63) the Hoare annotation is: (let ((.cse0 (= ~var_1_2~0 (_ bv0 8)))) (let ((.cse1 (let ((.cse5 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0))) (.cse6 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0))) (or (and (fp.leq ~var_1_5~0 ((_ to_fp 11 53) currentRoundingMode (fp.neg .cse5))) (fp.geq ~var_1_5~0 ((_ to_fp 11 53) currentRoundingMode (fp.neg .cse6)))) (and (fp.geq ~var_1_5~0 ((_ to_fp 11 53) currentRoundingMode .cse5)) (fp.leq ~var_1_5~0 ((_ to_fp 11 53) currentRoundingMode .cse6)))))) (.cse3 (not (= |ULTIMATE.start_property_#res#1| (_ bv0 32)))) (.cse4 (not .cse0))) (or (and .cse0 (= ~var_1_1~0 ~var_1_5~0) (= |ULTIMATE.start_property_#res#1| (_ bv1 32)) .cse1) (let ((.cse2 (fp.leq ~var_1_5~0 ~var_1_4~0))) (and (or (not .cse2) (fp.eq ~var_1_1~0 ~var_1_4~0)) (or .cse2 (fp.eq ~var_1_1~0 ((_ to_fp 11 53) currentRoundingMode (/ 399.0 2.0)))) .cse1 .cse3 .cse4)) (and (= ~var_1_3~0 (_ bv0 8)) .cse1 .cse3 .cse4)))) [2023-11-06 22:59:50,625 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-06 22:59:50,625 INFO L899 garLoopResultBuilder]: For program point L29(lines 29 45) no Hoare annotation was computed. [2023-11-06 22:59:50,626 INFO L899 garLoopResultBuilder]: For program point L58(lines 58 59) no Hoare annotation was computed. [2023-11-06 22:59:50,626 INFO L895 garLoopResultBuilder]: At program point L54(line 54) the Hoare annotation is: (let ((.cse0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0))) (.cse1 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0))) (or (and (fp.leq ~var_1_5~0 ((_ to_fp 11 53) currentRoundingMode (fp.neg .cse0))) (fp.geq ~var_1_5~0 ((_ to_fp 11 53) currentRoundingMode (fp.neg .cse1)))) (and (fp.geq ~var_1_5~0 ((_ to_fp 11 53) currentRoundingMode .cse0)) (fp.leq ~var_1_5~0 ((_ to_fp 11 53) currentRoundingMode .cse1))))) [2023-11-06 22:59:50,626 INFO L899 garLoopResultBuilder]: For program point L54-1(line 54) no Hoare annotation was computed. [2023-11-06 22:59:50,626 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-06 22:59:50,626 INFO L895 garLoopResultBuilder]: At program point L67-2(lines 67 73) the Hoare annotation is: (let ((.cse0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0))) (.cse1 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0))) (or (and (fp.leq ~var_1_5~0 ((_ to_fp 11 53) currentRoundingMode (fp.neg .cse0))) (fp.geq ~var_1_5~0 ((_ to_fp 11 53) currentRoundingMode (fp.neg .cse1)))) (and (fp.geq ~var_1_5~0 ((_ to_fp 11 53) currentRoundingMode .cse0)) (fp.leq ~var_1_5~0 ((_ to_fp 11 53) currentRoundingMode .cse1))))) [2023-11-06 22:59:50,626 INFO L899 garLoopResultBuilder]: For program point L67-3(lines 67 73) no Hoare annotation was computed. [2023-11-06 22:59:50,626 INFO L899 garLoopResultBuilder]: For program point L30(lines 30 44) no Hoare annotation was computed. [2023-11-06 22:59:50,626 INFO L895 garLoopResultBuilder]: At program point L51(line 51) the Hoare annotation is: (let ((.cse0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0))) (.cse1 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0))) (or (and (fp.leq ~var_1_5~0 ((_ to_fp 11 53) currentRoundingMode (fp.neg .cse0))) (fp.geq ~var_1_5~0 ((_ to_fp 11 53) currentRoundingMode (fp.neg .cse1)))) (and (fp.geq ~var_1_5~0 ((_ to_fp 11 53) currentRoundingMode .cse0)) (fp.leq ~var_1_5~0 ((_ to_fp 11 53) currentRoundingMode .cse1))))) [2023-11-06 22:59:50,627 INFO L895 garLoopResultBuilder]: At program point L51-1(line 51) the Hoare annotation is: (let ((.cse0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0))) (.cse1 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0))) (or (and (fp.leq ~var_1_5~0 ((_ to_fp 11 53) currentRoundingMode (fp.neg .cse0))) (fp.geq ~var_1_5~0 ((_ to_fp 11 53) currentRoundingMode (fp.neg .cse1)))) (and (fp.geq ~var_1_5~0 ((_ to_fp 11 53) currentRoundingMode .cse0)) (fp.leq ~var_1_5~0 ((_ to_fp 11 53) currentRoundingMode .cse1))))) [2023-11-06 22:59:50,627 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-11-06 22:59:50,627 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-11-06 22:59:50,627 INFO L899 garLoopResultBuilder]: For program point L20-2(line 20) no Hoare annotation was computed. [2023-11-06 22:59:50,627 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-11-06 22:59:50,631 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-11-06 22:59:50,634 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:59:50,645 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~fp.leq~64 [2023-11-06 22:59:50,646 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~fp.eq~64 [2023-11-06 22:59:50,646 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~fp.leq~64 [2023-11-06 22:59:50,648 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~fp.leq~64 [2023-11-06 22:59:50,648 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~fp.eq~64 [2023-11-06 22:59:50,649 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~fp.leq~64 [2023-11-06 22:59:50,650 ERROR L462 ceAbstractionStarter]: Failed to backtranslate (let ((.cse0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0))) (.cse1 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0))) (or (and (fp.leq ~var_1_5~0 ((_ to_fp 11 53) currentRoundingMode (fp.neg .cse0))) (fp.geq ~var_1_5~0 ((_ to_fp 11 53) currentRoundingMode (fp.neg .cse1)))) (and (fp.geq ~var_1_5~0 ((_ to_fp 11 53) currentRoundingMode .cse0)) (fp.leq ~var_1_5~0 ((_ to_fp 11 53) currentRoundingMode .cse1))))) [2023-11-06 22:59:50,651 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:59:50 BoogieIcfgContainer [2023-11-06 22:59:50,651 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:59:50,652 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:59:50,652 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:59:50,652 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:59:50,653 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:59:06" (3/4) ... [2023-11-06 22:59:50,654 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 22:59:50,657 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-06 22:59:50,661 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-11-06 22:59:50,661 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-06 22:59:50,662 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 22:59:50,662 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 22:59:50,687 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((var_1_2 == 0) && (var_1_1 == var_1_5)) && (\result == 1)) || (!((\result == 0)) && !((var_1_2 == 0)))) || (((var_1_3 == 0) && !((\result == 0))) && !((var_1_2 == 0)))) [2023-11-06 22:59:50,706 WARN L115 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((var_1_2 == 0) && (var_1_1 == var_1_5)) && (\result == 1)) || (!((\result == 0)) && !((var_1_2 == 0)))) || (((var_1_3 == 0) && !((\result == 0))) && !((var_1_2 == 0)))) [2023-11-06 22:59:50,719 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e338799-1223-4968-952d-3f65e2dc1f08/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 22:59:50,720 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e338799-1223-4968-952d-3f65e2dc1f08/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 22:59:50,720 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:59:50,721 INFO L158 Benchmark]: Toolchain (without parser) took 44986.44ms. Allocated memory was 98.6MB in the beginning and 362.8MB in the end (delta: 264.2MB). Free memory was 74.1MB in the beginning and 290.8MB in the end (delta: -216.6MB). Peak memory consumption was 48.8MB. Max. memory is 16.1GB. [2023-11-06 22:59:50,721 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 60.8MB. Free memory is still 37.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:59:50,721 INFO L158 Benchmark]: CACSL2BoogieTranslator took 317.63ms. Allocated memory is still 98.6MB. Free memory was 74.1MB in the beginning and 62.5MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-06 22:59:50,722 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.22ms. Allocated memory is still 98.6MB. Free memory was 62.5MB in the beginning and 60.7MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:59:50,722 INFO L158 Benchmark]: Boogie Preprocessor took 63.31ms. Allocated memory is still 98.6MB. Free memory was 60.7MB in the beginning and 59.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:59:50,723 INFO L158 Benchmark]: RCFGBuilder took 402.76ms. Allocated memory is still 98.6MB. Free memory was 59.0MB in the beginning and 74.8MB in the end (delta: -15.7MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. [2023-11-06 22:59:50,723 INFO L158 Benchmark]: TraceAbstraction took 44081.41ms. Allocated memory was 98.6MB in the beginning and 362.8MB in the end (delta: 264.2MB). Free memory was 74.2MB in the beginning and 295.0MB in the end (delta: -220.8MB). Peak memory consumption was 214.6MB. Max. memory is 16.1GB. [2023-11-06 22:59:50,724 INFO L158 Benchmark]: Witness Printer took 68.23ms. Allocated memory is still 362.8MB. Free memory was 295.0MB in the beginning and 290.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:59:50,726 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 60.8MB. Free memory is still 37.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 317.63ms. Allocated memory is still 98.6MB. Free memory was 74.1MB in the beginning and 62.5MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.22ms. Allocated memory is still 98.6MB. Free memory was 62.5MB in the beginning and 60.7MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 63.31ms. Allocated memory is still 98.6MB. Free memory was 60.7MB in the beginning and 59.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 402.76ms. Allocated memory is still 98.6MB. Free memory was 59.0MB in the beginning and 74.8MB in the end (delta: -15.7MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. * TraceAbstraction took 44081.41ms. Allocated memory was 98.6MB in the beginning and 362.8MB in the end (delta: 264.2MB). Free memory was 74.2MB in the beginning and 295.0MB in the end (delta: -220.8MB). Peak memory consumption was 214.6MB. Max. memory is 16.1GB. * Witness Printer took 68.23ms. Allocated memory is still 362.8MB. Free memory was 295.0MB in the beginning and 290.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~fp.leq~64 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~fp.eq~64 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~fp.leq~64 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~fp.leq~64 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~fp.eq~64 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~fp.leq~64 * 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, 33 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 44.0s, OverallIterations: 6, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 7.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 7.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 213 SdHoareTripleChecker+Valid, 3.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 189 mSDsluCounter, 953 SdHoareTripleChecker+Invalid, 3.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 642 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 388 IncrementalHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 311 mSDtfsCounter, 388 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 336 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 6.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred in iteration=3, InterpolantAutomatonStates: 46, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 75 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 36 PreInvPairs, 62 NumberOfFragments, 387 HoareAnnotationTreeSize, 36 FomulaSimplifications, 4310 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 11 FomulaSimplificationsInter, 2738 FormulaSimplificationTreeSizeReductionInter, 7.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 26.7s InterpolantComputationTime, 272 NumberOfCodeBlocks, 272 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 311 ConstructedInterpolants, 2 QuantifiedInterpolants, 1065 SizeOfPredicates, 40 NumberOfNonLiveVariables, 469 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 417/420 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: 64]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 60]: Loop Invariant [2023-11-06 22:59:50,737 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~fp.leq~64 [2023-11-06 22:59:50,737 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~fp.eq~64 [2023-11-06 22:59:50,737 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~fp.leq~64 [2023-11-06 22:59:50,739 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~fp.leq~64 [2023-11-06 22:59:50,739 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~fp.eq~64 [2023-11-06 22:59:50,739 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~fp.leq~64 Derived loop invariant: (((((var_1_2 == 0) && (var_1_1 == var_1_5)) && (\result == 1)) || (!((\result == 0)) && !((var_1_2 == 0)))) || (((var_1_3 == 0) && !((\result == 0))) && !((var_1_2 == 0)))) - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: NULL - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: !((cond == 0)) RESULT: Ultimate proved your program to be correct! [2023-11-06 22:59:50,799 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e338799-1223-4968-952d-3f65e2dc1f08/bin/uautomizer-verify-WvqO1wxjHP/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