./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-29.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa71125-44e0-4a61-b13d-256f65831caf/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa71125-44e0-4a61-b13d-256f65831caf/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa71125-44e0-4a61-b13d-256f65831caf/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa71125-44e0-4a61-b13d-256f65831caf/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-29.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa71125-44e0-4a61-b13d-256f65831caf/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa71125-44e0-4a61-b13d-256f65831caf/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c4d6be02e4d0ebe91e293f792b17ac6753100510b2dffdcc996eb79757e72554 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:48:15,712 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:48:15,828 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa71125-44e0-4a61-b13d-256f65831caf/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 07:48:15,835 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:48:15,835 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:48:15,871 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:48:15,876 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:48:15,877 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:48:15,878 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:48:15,883 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:48:15,884 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:48:15,885 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:48:15,885 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:48:15,887 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:48:15,887 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:48:15,888 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:48:15,888 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:48:15,889 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:48:15,889 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:48:15,889 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:48:15,890 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:48:15,890 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:48:15,891 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:48:15,891 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:48:15,892 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:48:15,893 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:48:15,893 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:48:15,893 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:48:15,894 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:48:15,894 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:48:15,896 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:48:15,896 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:48:15,896 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:48:15,896 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:48:15,897 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:48:15,897 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:48:15,897 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:48:15,897 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:48:15,898 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:48:15,898 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_8fa71125-44e0-4a61-b13d-256f65831caf/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa71125-44e0-4a61-b13d-256f65831caf/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c4d6be02e4d0ebe91e293f792b17ac6753100510b2dffdcc996eb79757e72554 [2023-11-19 07:48:16,145 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:48:16,172 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:48:16,175 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:48:16,176 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:48:16,177 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:48:16,178 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa71125-44e0-4a61-b13d-256f65831caf/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-29.i [2023-11-19 07:48:19,401 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:48:19,622 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:48:19,623 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa71125-44e0-4a61-b13d-256f65831caf/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-29.i [2023-11-19 07:48:19,631 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa71125-44e0-4a61-b13d-256f65831caf/bin/uautomizer-verify-uCwYo4JHxu/data/d1bf6a67c/7c9f3090bfa14c7cac951d2beae16d31/FLAG9c0de0c90 [2023-11-19 07:48:19,644 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa71125-44e0-4a61-b13d-256f65831caf/bin/uautomizer-verify-uCwYo4JHxu/data/d1bf6a67c/7c9f3090bfa14c7cac951d2beae16d31 [2023-11-19 07:48:19,647 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:48:19,648 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:48:19,653 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:48:19,654 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:48:19,660 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:48:19,662 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:48:19" (1/1) ... [2023-11-19 07:48:19,664 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75b09246 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:19, skipping insertion in model container [2023-11-19 07:48:19,664 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:48:19" (1/1) ... [2023-11-19 07:48:19,695 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:48:19,872 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_8fa71125-44e0-4a61-b13d-256f65831caf/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-29.i[915,928] [2023-11-19 07:48:19,937 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:48:19,948 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:48:19,960 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_8fa71125-44e0-4a61-b13d-256f65831caf/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-29.i[915,928] [2023-11-19 07:48:19,982 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:48:20,000 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:48:20,001 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:20 WrapperNode [2023-11-19 07:48:20,001 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:48:20,002 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:48:20,003 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:48:20,003 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:48:20,012 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:20" (1/1) ... [2023-11-19 07:48:20,030 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:20" (1/1) ... [2023-11-19 07:48:20,076 INFO L138 Inliner]: procedures = 26, calls = 23, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 83 [2023-11-19 07:48:20,076 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:48:20,077 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:48:20,077 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:48:20,077 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:48:20,089 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:20" (1/1) ... [2023-11-19 07:48:20,091 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:20" (1/1) ... [2023-11-19 07:48:20,093 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:20" (1/1) ... [2023-11-19 07:48:20,094 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:20" (1/1) ... [2023-11-19 07:48:20,101 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:20" (1/1) ... [2023-11-19 07:48:20,112 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:20" (1/1) ... [2023-11-19 07:48:20,115 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:20" (1/1) ... [2023-11-19 07:48:20,116 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:20" (1/1) ... [2023-11-19 07:48:20,125 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:48:20,126 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:48:20,126 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:48:20,126 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:48:20,127 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:20" (1/1) ... [2023-11-19 07:48:20,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:48:20,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa71125-44e0-4a61-b13d-256f65831caf/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:48:20,167 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa71125-44e0-4a61-b13d-256f65831caf/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:48:20,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa71125-44e0-4a61-b13d-256f65831caf/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:48:20,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:48:20,212 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 07:48:20,213 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 07:48:20,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:48:20,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:48:20,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:48:20,307 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:48:20,311 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:48:20,640 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:48:20,648 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:48:20,648 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:48:20,652 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:48:20 BoogieIcfgContainer [2023-11-19 07:48:20,652 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:48:20,655 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:48:20,655 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:48:20,659 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:48:20,659 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:48:19" (1/3) ... [2023-11-19 07:48:20,659 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a2417ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:48:20, skipping insertion in model container [2023-11-19 07:48:20,660 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:20" (2/3) ... [2023-11-19 07:48:20,660 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a2417ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:48:20, skipping insertion in model container [2023-11-19 07:48:20,660 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:48:20" (3/3) ... [2023-11-19 07:48:20,662 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-29.i [2023-11-19 07:48:20,682 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:48:20,682 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:48:20,734 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:48:20,741 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@24e264cd, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:48:20,741 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:48:20,746 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 30 states have internal predecessors, (40), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-19 07:48:20,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-19 07:48:20,757 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:48:20,759 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:20,760 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:48:20,766 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:20,766 INFO L85 PathProgramCache]: Analyzing trace with hash 2027500392, now seen corresponding path program 1 times [2023-11-19 07:48:20,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:20,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562325942] [2023-11-19 07:48:20,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:20,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:20,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:20,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-19 07:48:20,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:21,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 07:48:21,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:21,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 07:48:21,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:21,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-19 07:48:21,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:21,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-19 07:48:21,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:21,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-19 07:48:21,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:21,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-19 07:48:21,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:21,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-19 07:48:21,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:21,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-19 07:48:21,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:21,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-19 07:48:21,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:21,126 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-19 07:48:21,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:21,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562325942] [2023-11-19 07:48:21,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562325942] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:48:21,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:48:21,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:48:21,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631099563] [2023-11-19 07:48:21,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:48:21,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:48:21,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:21,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:48:21,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:48:21,169 INFO L87 Difference]: Start difference. First operand has 42 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 30 states have internal predecessors, (40), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-19 07:48:21,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:48:21,195 INFO L93 Difference]: Finished difference Result 77 states and 124 transitions. [2023-11-19 07:48:21,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:48:21,197 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 69 [2023-11-19 07:48:21,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:48:21,205 INFO L225 Difference]: With dead ends: 77 [2023-11-19 07:48:21,205 INFO L226 Difference]: Without dead ends: 38 [2023-11-19 07:48:21,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:48:21,213 INFO L413 NwaCegarLoop]: 53 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, 53 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:48:21,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:48:21,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2023-11-19 07:48:21,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2023-11-19 07:48:21,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 26 states have internal predecessors, (33), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-19 07:48:21,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 53 transitions. [2023-11-19 07:48:21,258 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 53 transitions. Word has length 69 [2023-11-19 07:48:21,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:48:21,258 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 53 transitions. [2023-11-19 07:48:21,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-19 07:48:21,259 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 53 transitions. [2023-11-19 07:48:21,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-19 07:48:21,262 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:48:21,263 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:21,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:48:21,263 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:48:21,264 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:21,264 INFO L85 PathProgramCache]: Analyzing trace with hash -606886932, now seen corresponding path program 1 times [2023-11-19 07:48:21,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:21,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754738766] [2023-11-19 07:48:21,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:21,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:21,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:48:21,394 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:48:21,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:48:21,502 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:48:21,504 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:48:21,506 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 07:48:21,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:48:21,512 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-19 07:48:21,515 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:48:21,598 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:48:21 BoogieIcfgContainer [2023-11-19 07:48:21,598 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:48:21,599 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:48:21,599 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:48:21,599 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:48:21,600 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:48:20" (3/4) ... [2023-11-19 07:48:21,602 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 07:48:21,603 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:48:21,607 INFO L158 Benchmark]: Toolchain (without parser) took 1955.15ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 96.1MB in the beginning and 98.1MB in the end (delta: -2.1MB). Peak memory consumption was 29.1MB. Max. memory is 16.1GB. [2023-11-19 07:48:21,609 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 104.9MB. Free memory is still 54.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:48:21,612 INFO L158 Benchmark]: CACSL2BoogieTranslator took 348.77ms. Allocated memory is still 144.7MB. Free memory was 95.8MB in the beginning and 83.9MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 07:48:21,614 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.84ms. Allocated memory is still 144.7MB. Free memory was 83.5MB in the beginning and 81.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:48:21,616 INFO L158 Benchmark]: Boogie Preprocessor took 48.21ms. Allocated memory is still 144.7MB. Free memory was 81.4MB in the beginning and 79.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:48:21,616 INFO L158 Benchmark]: RCFGBuilder took 526.27ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 79.7MB in the beginning and 141.1MB in the end (delta: -61.4MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. [2023-11-19 07:48:21,617 INFO L158 Benchmark]: TraceAbstraction took 943.65ms. Allocated memory is still 174.1MB. Free memory was 140.2MB in the beginning and 98.5MB in the end (delta: 41.8MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2023-11-19 07:48:21,617 INFO L158 Benchmark]: Witness Printer took 4.00ms. Allocated memory is still 174.1MB. Free memory was 98.5MB in the beginning and 98.1MB in the end (delta: 316.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:48:21,624 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 104.9MB. Free memory is still 54.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 348.77ms. Allocated memory is still 144.7MB. Free memory was 95.8MB in the beginning and 83.9MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.84ms. Allocated memory is still 144.7MB. Free memory was 83.5MB in the beginning and 81.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.21ms. Allocated memory is still 144.7MB. Free memory was 81.4MB in the beginning and 79.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 526.27ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 79.7MB in the beginning and 141.1MB in the end (delta: -61.4MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. * TraceAbstraction took 943.65ms. Allocated memory is still 174.1MB. Free memory was 140.2MB in the beginning and 98.5MB in the end (delta: 41.8MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Witness Printer took 4.00ms. Allocated memory is still 174.1MB. Free memory was 98.5MB in the beginning and 98.1MB in the end (delta: 316.5kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 76, overapproximation of someBinaryDOUBLEComparisonOperation at line 76. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] float var_1_1 = 2.5; [L23] unsigned char var_1_2 = 0; [L24] float var_1_3 = 9.3; [L25] float var_1_4 = 3.4; [L26] unsigned short int var_1_5 = 32; [L27] unsigned short int var_1_6 = 10; [L28] unsigned short int var_1_7 = 64; [L29] unsigned short int var_1_8 = 16; [L30] unsigned short int var_1_9 = 1; VAL [isInitial=0, var_1_1=5/2, var_1_2=0, var_1_3=93/10, var_1_4=17/5, var_1_5=32, var_1_6=10, var_1_7=64, var_1_8=16, var_1_9=1] [L80] isInitial = 1 [L81] FCALL initially() [L82] COND TRUE 1 [L83] FCALL updateLastVariables() [L84] CALL updateVariables() [L56] var_1_2 = __VERIFIER_nondet_uchar() [L57] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_3=93/10, var_1_4=17/5, var_1_5=32, var_1_6=10, var_1_7=64, var_1_8=16, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=5/2, var_1_3=93/10, var_1_4=17/5, var_1_5=32, var_1_6=10, var_1_7=64, var_1_8=16, var_1_9=1] [L57] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_1=5/2, var_1_3=93/10, var_1_4=17/5, var_1_5=32, var_1_6=10, var_1_7=64, var_1_8=16, var_1_9=1] [L58] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_3=93/10, var_1_4=17/5, var_1_5=32, var_1_6=10, var_1_7=64, var_1_8=16, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_3=93/10, var_1_4=17/5, var_1_5=32, var_1_6=10, var_1_7=64, var_1_8=16, var_1_9=1] [L58] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_1=5/2, var_1_2=1, var_1_3=93/10, var_1_4=17/5, var_1_5=32, var_1_6=10, var_1_7=64, var_1_8=16, var_1_9=1] [L59] var_1_3 = __VERIFIER_nondet_float() [L60] CALL assume_abort_if_not((var_1_3 >= -922337.2036854765600e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854765600e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_3=98309, var_1_4=17/5, var_1_5=32, var_1_6=10, var_1_7=64, var_1_8=16, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_3=98309, var_1_4=17/5, var_1_5=32, var_1_6=10, var_1_7=64, var_1_8=16, var_1_9=1] [L60] RET assume_abort_if_not((var_1_3 >= -922337.2036854765600e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854765600e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=5/2, var_1_2=1, var_1_3=98309, var_1_4=17/5, var_1_5=32, var_1_6=10, var_1_7=64, var_1_8=16, var_1_9=1] [L61] var_1_4 = __VERIFIER_nondet_float() [L62] CALL assume_abort_if_not((var_1_4 >= -922337.2036854776000e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854776000e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_3=98309, var_1_4=98308, var_1_5=32, var_1_6=10, var_1_7=64, var_1_8=16, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_3=98309, var_1_4=98308, var_1_5=32, var_1_6=10, var_1_7=64, var_1_8=16, var_1_9=1] [L62] RET assume_abort_if_not((var_1_4 >= -922337.2036854776000e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854776000e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=5/2, var_1_2=1, var_1_3=98309, var_1_4=98308, var_1_5=32, var_1_6=10, var_1_7=64, var_1_8=16, var_1_9=1] [L63] var_1_6 = __VERIFIER_nondet_ushort() [L64] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_3=98309, var_1_4=98308, var_1_5=32, var_1_6=32767, var_1_7=64, var_1_8=16, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_3=98309, var_1_4=98308, var_1_5=32, var_1_6=32767, var_1_7=64, var_1_8=16, var_1_9=1] [L64] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_1=5/2, var_1_2=1, var_1_3=98309, var_1_4=98308, var_1_5=32, var_1_6=32767, var_1_7=64, var_1_8=16, var_1_9=1] [L65] CALL assume_abort_if_not(var_1_6 <= 32767) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_3=98309, var_1_4=98308, var_1_5=32, var_1_6=32767, var_1_7=64, var_1_8=16, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_3=98309, var_1_4=98308, var_1_5=32, var_1_6=32767, var_1_7=64, var_1_8=16, var_1_9=1] [L65] RET assume_abort_if_not(var_1_6 <= 32767) VAL [isInitial=1, var_1_1=5/2, var_1_2=1, var_1_3=98309, var_1_4=98308, var_1_5=32, var_1_6=32767, var_1_7=64, var_1_8=16, var_1_9=1] [L66] var_1_7 = __VERIFIER_nondet_ushort() [L67] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_3=98309, var_1_4=98308, var_1_5=32, var_1_6=32767, var_1_7=32767, var_1_8=16, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_3=98309, var_1_4=98308, var_1_5=32, var_1_6=32767, var_1_7=32767, var_1_8=16, var_1_9=1] [L67] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, var_1_1=5/2, var_1_2=1, var_1_3=98309, var_1_4=98308, var_1_5=32, var_1_6=32767, var_1_7=32767, var_1_8=16, var_1_9=1] [L68] CALL assume_abort_if_not(var_1_7 <= 32767) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_3=98309, var_1_4=98308, var_1_5=32, var_1_6=32767, var_1_7=32767, var_1_8=16, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_3=98309, var_1_4=98308, var_1_5=32, var_1_6=32767, var_1_7=32767, var_1_8=16, var_1_9=1] [L68] RET assume_abort_if_not(var_1_7 <= 32767) VAL [isInitial=1, var_1_1=5/2, var_1_2=1, var_1_3=98309, var_1_4=98308, var_1_5=32, var_1_6=32767, var_1_7=32767, var_1_8=16, var_1_9=1] [L69] var_1_8 = __VERIFIER_nondet_ushort() [L70] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_3=98309, var_1_4=98308, var_1_5=32, var_1_6=32767, var_1_7=32767, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_3=98309, var_1_4=98308, var_1_5=32, var_1_6=32767, var_1_7=32767, var_1_8=0, var_1_9=1] [L70] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, var_1_1=5/2, var_1_2=1, var_1_3=98309, var_1_4=98308, var_1_5=32, var_1_6=32767, var_1_7=32767, var_1_8=0, var_1_9=1] [L71] CALL assume_abort_if_not(var_1_8 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_3=98309, var_1_4=98308, var_1_5=32, var_1_6=32767, var_1_7=32767, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_3=98309, var_1_4=98308, var_1_5=32, var_1_6=32767, var_1_7=32767, var_1_8=0, var_1_9=1] [L71] RET assume_abort_if_not(var_1_8 <= 65534) VAL [isInitial=1, var_1_1=5/2, var_1_2=1, var_1_3=98309, var_1_4=98308, var_1_5=32, var_1_6=32767, var_1_7=32767, var_1_8=0, var_1_9=1] [L84] RET updateVariables() [L85] CALL step() [L34] COND TRUE \read(var_1_2) [L35] var_1_1 = var_1_3 VAL [isInitial=1, var_1_1=98309, var_1_2=1, var_1_3=98309, var_1_4=98308, var_1_5=32, var_1_6=32767, var_1_7=32767, var_1_8=0, var_1_9=1] [L41] COND FALSE !((var_1_1 + 8.125) > (var_1_1 * var_1_3)) [L44] var_1_5 = var_1_8 VAL [isInitial=1, var_1_1=98309, var_1_2=1, var_1_3=98309, var_1_4=98308, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=0, var_1_9=1] [L46] signed long int stepLocal_0 = 5 * var_1_8; VAL [isInitial=1, stepLocal_0=0, var_1_1=98309, var_1_2=1, var_1_3=98309, var_1_4=98308, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=0, var_1_9=1] [L47] COND FALSE !(((((var_1_3) < (var_1_1)) ? (var_1_3) : (var_1_1))) == var_1_1) VAL [isInitial=1, stepLocal_0=0, var_1_1=98309, var_1_2=1, var_1_3=98309, var_1_4=98308, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=0, var_1_9=1] [L85] RET step() [L86] CALL, EXPR property() [L76-L77] return ((var_1_2 ? (var_1_1 == ((float) var_1_3)) : ((! (var_1_3 < var_1_4)) ? (var_1_1 == ((float) ((((var_1_3) < 0 ) ? -(var_1_3) : (var_1_3))))) : 1)) && (((var_1_1 + 8.125) > (var_1_1 * var_1_3)) ? (var_1_5 == ((unsigned short int) (((((var_1_6 + var_1_7)) > (var_1_8)) ? ((var_1_6 + var_1_7)) : (var_1_8))))) : (var_1_5 == ((unsigned short int) var_1_8)))) && ((((((var_1_3) < (var_1_1)) ? (var_1_3) : (var_1_1))) == var_1_1) ? ((var_1_6 > (5 * var_1_8)) ? ((var_1_1 < (var_1_1 * 256.5f)) ? (var_1_9 == ((unsigned short int) var_1_6)) : 1) : 1) : 1) ; VAL [\result=0, isInitial=1, var_1_1=98309, var_1_2=1, var_1_3=98309, var_1_4=98308, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=0, var_1_9=1] [L86] RET, EXPR property() [L86] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_1=98309, var_1_2=1, var_1_3=98309, var_1_4=98308, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=0, var_1_9=1] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_1=98309, var_1_2=1, var_1_3=98309, var_1_4=98308, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=0, var_1_9=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 10, 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, 53 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, 53 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 138 NumberOfCodeBlocks, 138 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 68 ConstructedInterpolants, 0 QuantifiedInterpolants, 68 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 180/180 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 07:48:21,668 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa71125-44e0-4a61-b13d-256f65831caf/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa71125-44e0-4a61-b13d-256f65831caf/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa71125-44e0-4a61-b13d-256f65831caf/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa71125-44e0-4a61-b13d-256f65831caf/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa71125-44e0-4a61-b13d-256f65831caf/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-29.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa71125-44e0-4a61-b13d-256f65831caf/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa71125-44e0-4a61-b13d-256f65831caf/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c4d6be02e4d0ebe91e293f792b17ac6753100510b2dffdcc996eb79757e72554 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:48:24,498 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:48:24,658 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa71125-44e0-4a61-b13d-256f65831caf/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-19 07:48:24,668 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:48:24,669 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:48:24,717 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:48:24,718 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:48:24,719 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:48:24,720 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:48:24,726 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:48:24,727 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:48:24,727 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:48:24,728 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:48:24,730 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:48:24,731 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:48:24,732 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:48:24,732 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:48:24,733 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:48:24,733 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:48:24,734 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:48:24,734 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:48:24,735 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:48:24,735 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 07:48:24,736 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 07:48:24,736 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:48:24,737 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:48:24,737 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:48:24,738 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:48:24,738 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:48:24,739 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:48:24,740 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:48:24,741 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:48:24,741 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:48:24,741 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:48:24,742 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-19 07:48:24,742 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 07:48:24,742 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:48:24,742 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:48:24,743 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:48:24,744 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:48:24,744 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-19 07:48:24,745 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:48:24,745 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_8fa71125-44e0-4a61-b13d-256f65831caf/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa71125-44e0-4a61-b13d-256f65831caf/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c4d6be02e4d0ebe91e293f792b17ac6753100510b2dffdcc996eb79757e72554 [2023-11-19 07:48:25,197 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:48:25,219 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:48:25,222 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:48:25,223 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:48:25,224 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:48:25,225 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa71125-44e0-4a61-b13d-256f65831caf/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-29.i [2023-11-19 07:48:28,346 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:48:28,684 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:48:28,685 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa71125-44e0-4a61-b13d-256f65831caf/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-29.i [2023-11-19 07:48:28,695 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa71125-44e0-4a61-b13d-256f65831caf/bin/uautomizer-verify-uCwYo4JHxu/data/e3031ef92/d34e6b47ee0942fc98ec5ed9c19b82f0/FLAG2c0a9a625 [2023-11-19 07:48:28,710 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa71125-44e0-4a61-b13d-256f65831caf/bin/uautomizer-verify-uCwYo4JHxu/data/e3031ef92/d34e6b47ee0942fc98ec5ed9c19b82f0 [2023-11-19 07:48:28,713 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:48:28,715 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:48:28,717 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:48:28,717 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:48:28,723 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:48:28,724 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:48:28" (1/1) ... [2023-11-19 07:48:28,725 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73cea5be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:28, skipping insertion in model container [2023-11-19 07:48:28,725 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:48:28" (1/1) ... [2023-11-19 07:48:28,751 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:48:28,937 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_8fa71125-44e0-4a61-b13d-256f65831caf/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-29.i[915,928] [2023-11-19 07:48:28,976 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:48:28,993 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:48:29,007 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_8fa71125-44e0-4a61-b13d-256f65831caf/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-29.i[915,928] [2023-11-19 07:48:29,028 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:48:29,048 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:48:29,049 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:29 WrapperNode [2023-11-19 07:48:29,049 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:48:29,050 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:48:29,050 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:48:29,051 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:48:29,059 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:29" (1/1) ... [2023-11-19 07:48:29,071 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:29" (1/1) ... [2023-11-19 07:48:29,097 INFO L138 Inliner]: procedures = 27, calls = 23, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 83 [2023-11-19 07:48:29,097 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:48:29,098 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:48:29,098 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:48:29,099 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:48:29,108 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:29" (1/1) ... [2023-11-19 07:48:29,108 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:29" (1/1) ... [2023-11-19 07:48:29,112 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:29" (1/1) ... [2023-11-19 07:48:29,113 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:29" (1/1) ... [2023-11-19 07:48:29,124 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:29" (1/1) ... [2023-11-19 07:48:29,140 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:29" (1/1) ... [2023-11-19 07:48:29,142 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:29" (1/1) ... [2023-11-19 07:48:29,144 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:29" (1/1) ... [2023-11-19 07:48:29,148 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:48:29,149 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:48:29,149 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:48:29,149 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:48:29,150 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:29" (1/1) ... [2023-11-19 07:48:29,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:48:29,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa71125-44e0-4a61-b13d-256f65831caf/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:48:29,192 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa71125-44e0-4a61-b13d-256f65831caf/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:48:29,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa71125-44e0-4a61-b13d-256f65831caf/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:48:29,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:48:29,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 07:48:29,247 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 07:48:29,247 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 07:48:29,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:48:29,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:48:29,348 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:48:29,350 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:48:35,940 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:48:35,955 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:48:35,964 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:48:35,969 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:48:35 BoogieIcfgContainer [2023-11-19 07:48:35,969 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:48:35,972 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:48:35,973 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:48:35,977 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:48:35,978 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:48:28" (1/3) ... [2023-11-19 07:48:35,979 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d58ccc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:48:35, skipping insertion in model container [2023-11-19 07:48:35,979 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:29" (2/3) ... [2023-11-19 07:48:35,982 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d58ccc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:48:35, skipping insertion in model container [2023-11-19 07:48:35,983 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:48:35" (3/3) ... [2023-11-19 07:48:36,003 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-29.i [2023-11-19 07:48:36,026 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:48:36,026 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:48:36,108 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:48:36,119 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1ef0ac66, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:48:36,120 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:48:36,126 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 30 states have internal predecessors, (40), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-19 07:48:36,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-19 07:48:36,142 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:48:36,144 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:36,149 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:48:36,156 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:36,156 INFO L85 PathProgramCache]: Analyzing trace with hash 2027500392, now seen corresponding path program 1 times [2023-11-19 07:48:36,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:48:36,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1965961823] [2023-11-19 07:48:36,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:36,179 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:48:36,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa71125-44e0-4a61-b13d-256f65831caf/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:48:36,183 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa71125-44e0-4a61-b13d-256f65831caf/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 07:48:36,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa71125-44e0-4a61-b13d-256f65831caf/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-19 07:48:36,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:36,739 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 07:48:36,749 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:48:36,793 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2023-11-19 07:48:36,794 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:48:36,795 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:48:36,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1965961823] [2023-11-19 07:48:36,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1965961823] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:48:36,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:48:36,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:48:36,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109829306] [2023-11-19 07:48:36,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:48:36,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:48:36,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:48:36,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:48:36,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:48:36,855 INFO L87 Difference]: Start difference. First operand has 42 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 30 states have internal predecessors, (40), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-19 07:48:36,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:48:36,903 INFO L93 Difference]: Finished difference Result 77 states and 124 transitions. [2023-11-19 07:48:36,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:48:36,907 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) Word has length 69 [2023-11-19 07:48:36,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:48:36,918 INFO L225 Difference]: With dead ends: 77 [2023-11-19 07:48:36,918 INFO L226 Difference]: Without dead ends: 38 [2023-11-19 07:48:36,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:48:36,929 INFO L413 NwaCegarLoop]: 53 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, 53 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:48:36,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:48:36,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2023-11-19 07:48:36,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2023-11-19 07:48:36,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 26 states have internal predecessors, (33), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-19 07:48:36,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 53 transitions. [2023-11-19 07:48:36,996 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 53 transitions. Word has length 69 [2023-11-19 07:48:36,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:48:36,997 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 53 transitions. [2023-11-19 07:48:36,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-19 07:48:36,998 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 53 transitions. [2023-11-19 07:48:37,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-19 07:48:37,002 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:48:37,003 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:37,020 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa71125-44e0-4a61-b13d-256f65831caf/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:48:37,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa71125-44e0-4a61-b13d-256f65831caf/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:48:37,213 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:48:37,214 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:37,215 INFO L85 PathProgramCache]: Analyzing trace with hash -606886932, now seen corresponding path program 1 times [2023-11-19 07:48:37,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:48:37,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1061116328] [2023-11-19 07:48:37,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:37,216 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:48:37,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa71125-44e0-4a61-b13d-256f65831caf/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:48:37,219 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa71125-44e0-4a61-b13d-256f65831caf/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 07:48:37,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa71125-44e0-4a61-b13d-256f65831caf/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-19 07:48:37,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:37,617 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:48:37,623 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:48:40,053 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 6 proven. 84 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-11-19 07:48:40,053 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:48:40,760 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 6 proven. 21 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2023-11-19 07:48:40,760 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:48:40,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1061116328] [2023-11-19 07:48:40,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1061116328] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:48:40,761 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:48:40,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-19 07:48:40,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63616222] [2023-11-19 07:48:40,762 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:48:40,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-19 07:48:40,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:48:40,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 07:48:40,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-11-19 07:48:40,766 INFO L87 Difference]: Start difference. First operand 38 states and 53 transitions. Second operand has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 4 states have call successors, (20), 3 states have call predecessors, (20), 5 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2023-11-19 07:48:44,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 07:48:46,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 07:48:48,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 07:48:50,327 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 07:48:52,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 07:48:54,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 07:48:56,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 07:48:58,720 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 07:49:01,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 07:49:03,058 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 07:49:04,323 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 07:49:05,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:49:05,114 INFO L93 Difference]: Finished difference Result 118 states and 153 transitions. [2023-11-19 07:49:05,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-19 07:49:05,116 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 4 states have call successors, (20), 3 states have call predecessors, (20), 5 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 69 [2023-11-19 07:49:05,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:49:05,119 INFO L225 Difference]: With dead ends: 118 [2023-11-19 07:49:05,120 INFO L226 Difference]: Without dead ends: 83 [2023-11-19 07:49:05,121 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=195, Invalid=357, Unknown=0, NotChecked=0, Total=552 [2023-11-19 07:49:05,123 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 167 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 47 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:49:05,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 111 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 140 Invalid, 7 Unknown, 0 Unchecked, 23.0s Time] [2023-11-19 07:49:05,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2023-11-19 07:49:05,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 57. [2023-11-19 07:49:05,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 41 states have (on average 1.2195121951219512) internal successors, (50), 42 states have internal predecessors, (50), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-19 07:49:05,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 74 transitions. [2023-11-19 07:49:05,151 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 74 transitions. Word has length 69 [2023-11-19 07:49:05,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:49:05,153 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 74 transitions. [2023-11-19 07:49:05,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 4 states have call successors, (20), 3 states have call predecessors, (20), 5 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2023-11-19 07:49:05,154 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 74 transitions. [2023-11-19 07:49:05,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-19 07:49:05,158 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:49:05,158 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:49:05,169 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa71125-44e0-4a61-b13d-256f65831caf/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-19 07:49:05,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa71125-44e0-4a61-b13d-256f65831caf/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:49:05,369 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:49:05,370 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:05,370 INFO L85 PathProgramCache]: Analyzing trace with hash -2039113878, now seen corresponding path program 1 times [2023-11-19 07:49:05,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:49:05,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1284252325] [2023-11-19 07:49:05,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:05,371 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:49:05,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa71125-44e0-4a61-b13d-256f65831caf/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:49:05,375 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa71125-44e0-4a61-b13d-256f65831caf/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 07:49:05,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa71125-44e0-4a61-b13d-256f65831caf/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-19 07:49:05,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:05,874 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 07:49:05,887 INFO L285 TraceCheckSpWp]: Computing forward predicates...