./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-24.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_95cc03ff-3b94-4435-aa0a-8dd271807178/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95cc03ff-3b94-4435-aa0a-8dd271807178/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_95cc03ff-3b94-4435-aa0a-8dd271807178/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95cc03ff-3b94-4435-aa0a-8dd271807178/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-24.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95cc03ff-3b94-4435-aa0a-8dd271807178/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_95cc03ff-3b94-4435-aa0a-8dd271807178/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 fbed63e7ceb32b7a0e8cf5dc0c27da185670168d6f706e37fa0256a1876a7a11 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:00:55,205 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:00:55,283 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95cc03ff-3b94-4435-aa0a-8dd271807178/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 08:00:55,289 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:00:55,290 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:00:55,318 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:00:55,318 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:00:55,319 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:00:55,320 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 08:00:55,320 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 08:00:55,321 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:00:55,322 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:00:55,323 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:00:55,323 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:00:55,324 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 08:00:55,325 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 08:00:55,325 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 08:00:55,326 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 08:00:55,326 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:00:55,326 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 08:00:55,327 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 08:00:55,328 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 08:00:55,328 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 08:00:55,328 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 08:00:55,329 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:00:55,329 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:00:55,330 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:00:55,330 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 08:00:55,331 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:00:55,331 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:00:55,331 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 08:00:55,332 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 08:00:55,332 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 08:00:55,332 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 08:00:55,333 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 08:00:55,333 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 08:00:55,333 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 08:00:55,333 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 08:00:55,334 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 08:00:55,334 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_95cc03ff-3b94-4435-aa0a-8dd271807178/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95cc03ff-3b94-4435-aa0a-8dd271807178/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fbed63e7ceb32b7a0e8cf5dc0c27da185670168d6f706e37fa0256a1876a7a11 [2023-11-19 08:00:55,624 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:00:55,656 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:00:55,659 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:00:55,661 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:00:55,661 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:00:55,663 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95cc03ff-3b94-4435-aa0a-8dd271807178/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-24.i [2023-11-19 08:00:58,873 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:00:59,108 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:00:59,108 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95cc03ff-3b94-4435-aa0a-8dd271807178/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-24.i [2023-11-19 08:00:59,121 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95cc03ff-3b94-4435-aa0a-8dd271807178/bin/uautomizer-verify-uCwYo4JHxu/data/146bda7e6/922cd4b837ab4afbb2fcb3a836a9d93d/FLAG4b7a49087 [2023-11-19 08:00:59,140 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95cc03ff-3b94-4435-aa0a-8dd271807178/bin/uautomizer-verify-uCwYo4JHxu/data/146bda7e6/922cd4b837ab4afbb2fcb3a836a9d93d [2023-11-19 08:00:59,143 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:00:59,144 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:00:59,146 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:00:59,146 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:00:59,152 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:00:59,157 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:00:59" (1/1) ... [2023-11-19 08:00:59,158 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dc2db0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:59, skipping insertion in model container [2023-11-19 08:00:59,158 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:00:59" (1/1) ... [2023-11-19 08:00:59,189 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:00:59,356 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_95cc03ff-3b94-4435-aa0a-8dd271807178/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-24.i[916,929] [2023-11-19 08:00:59,411 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:00:59,427 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:00:59,441 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_95cc03ff-3b94-4435-aa0a-8dd271807178/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-24.i[916,929] [2023-11-19 08:00:59,463 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:00:59,482 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:00:59,483 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:59 WrapperNode [2023-11-19 08:00:59,483 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:00:59,484 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:00:59,484 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:00:59,485 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:00:59,493 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:59" (1/1) ... [2023-11-19 08:00:59,517 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:59" (1/1) ... [2023-11-19 08:00:59,551 INFO L138 Inliner]: procedures = 26, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 105 [2023-11-19 08:00:59,557 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:00:59,558 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:00:59,559 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:00:59,559 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:00:59,568 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:59" (1/1) ... [2023-11-19 08:00:59,568 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:59" (1/1) ... [2023-11-19 08:00:59,571 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:59" (1/1) ... [2023-11-19 08:00:59,571 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:59" (1/1) ... [2023-11-19 08:00:59,581 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:59" (1/1) ... [2023-11-19 08:00:59,584 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:59" (1/1) ... [2023-11-19 08:00:59,587 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:59" (1/1) ... [2023-11-19 08:00:59,589 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:59" (1/1) ... [2023-11-19 08:00:59,594 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:00:59,600 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:00:59,601 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:00:59,601 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:00:59,602 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:59" (1/1) ... [2023-11-19 08:00:59,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:00:59,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95cc03ff-3b94-4435-aa0a-8dd271807178/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:00:59,649 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95cc03ff-3b94-4435-aa0a-8dd271807178/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 08:00:59,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95cc03ff-3b94-4435-aa0a-8dd271807178/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 08:00:59,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:00:59,701 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 08:00:59,701 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 08:00:59,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 08:00:59,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:00:59,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:00:59,829 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:00:59,832 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:01:00,175 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:01:00,198 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:01:00,202 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 08:01:00,207 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:01:00 BoogieIcfgContainer [2023-11-19 08:01:00,210 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:01:00,228 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 08:01:00,228 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 08:01:00,231 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 08:01:00,232 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:00:59" (1/3) ... [2023-11-19 08:01:00,232 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b4044d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:01:00, skipping insertion in model container [2023-11-19 08:01:00,232 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:59" (2/3) ... [2023-11-19 08:01:00,233 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b4044d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:01:00, skipping insertion in model container [2023-11-19 08:01:00,233 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:01:00" (3/3) ... [2023-11-19 08:01:00,234 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-24.i [2023-11-19 08:01:00,255 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 08:01:00,255 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 08:01:00,310 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:01:00,317 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;@7cf1fc3c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:01:00,318 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 08:01:00,322 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 30 states have internal predecessors, (38), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-19 08:01:00,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-19 08:01:00,336 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:01:00,337 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:01:00,338 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:01:00,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:00,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1608189602, now seen corresponding path program 1 times [2023-11-19 08:01:00,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:00,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628044677] [2023-11-19 08:01:00,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:00,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:00,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:00,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-19 08:01:00,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:00,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 08:01:00,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:00,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 08:01:00,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:00,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-19 08:01:00,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:00,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-19 08:01:00,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:00,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 08:01:00,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:00,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-19 08:01:00,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:00,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-19 08:01:00,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:00,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-19 08:01:00,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:00,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-19 08:01:00,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:00,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-19 08:01:00,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:00,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-19 08:01:00,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:00,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-19 08:01:00,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:00,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-19 08:01:00,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:00,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-19 08:01:00,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:00,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-19 08:01:00,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:00,735 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-11-19 08:01:00,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:01:00,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628044677] [2023-11-19 08:01:00,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628044677] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:01:00,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:01:00,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:01:00,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161033486] [2023-11-19 08:01:00,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:01:00,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 08:01:00,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:01:00,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 08:01:00,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 08:01:00,781 INFO L87 Difference]: Start difference. First operand has 48 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 30 states have internal predecessors, (38), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-19 08:01:00,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:01:00,815 INFO L93 Difference]: Finished difference Result 89 states and 150 transitions. [2023-11-19 08:01:00,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 08:01:00,818 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 101 [2023-11-19 08:01:00,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:01:00,826 INFO L225 Difference]: With dead ends: 89 [2023-11-19 08:01:00,827 INFO L226 Difference]: Without dead ends: 44 [2023-11-19 08:01:00,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 50 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 08:01:00,835 INFO L413 NwaCegarLoop]: 63 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, 63 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 08:01:00,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:01:00,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2023-11-19 08:01:00,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2023-11-19 08:01:00,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 26 states have internal predecessors, (31), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-19 08:01:00,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 63 transitions. [2023-11-19 08:01:00,898 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 63 transitions. Word has length 101 [2023-11-19 08:01:00,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:01:00,899 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 63 transitions. [2023-11-19 08:01:00,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-19 08:01:00,899 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 63 transitions. [2023-11-19 08:01:00,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-19 08:01:00,905 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:01:00,906 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:01:00,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 08:01:00,907 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:01:00,907 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:00,908 INFO L85 PathProgramCache]: Analyzing trace with hash 296884574, now seen corresponding path program 1 times [2023-11-19 08:01:00,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:00,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192701656] [2023-11-19 08:01:00,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:00,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:01,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:01,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-19 08:01:01,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:01,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 08:01:01,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:01,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 08:01:01,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:01,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-19 08:01:01,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:01,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-19 08:01:01,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:01,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 08:01:01,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:01,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-19 08:01:01,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:01,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-19 08:01:01,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:01,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-19 08:01:01,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:01,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-19 08:01:01,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:01,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-19 08:01:01,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:01,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-19 08:01:01,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:01,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-19 08:01:01,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:01,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-19 08:01:01,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:01,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-19 08:01:01,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:01,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-19 08:01:02,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:02,005 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 15 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-11-19 08:01:02,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:01:02,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192701656] [2023-11-19 08:01:02,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192701656] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 08:01:02,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [526306619] [2023-11-19 08:01:02,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:02,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:01:02,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95cc03ff-3b94-4435-aa0a-8dd271807178/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:01:02,013 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95cc03ff-3b94-4435-aa0a-8dd271807178/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:01:02,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95cc03ff-3b94-4435-aa0a-8dd271807178/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 08:01:02,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:02,182 INFO L262 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-19 08:01:02,195 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:01:02,546 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 242 proven. 24 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2023-11-19 08:01:02,546 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:01:02,784 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 15 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-11-19 08:01:02,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [526306619] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 08:01:02,790 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 08:01:02,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9, 6] total 13 [2023-11-19 08:01:02,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354453506] [2023-11-19 08:01:02,793 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 08:01:02,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-19 08:01:02,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:01:02,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-19 08:01:02,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2023-11-19 08:01:02,801 INFO L87 Difference]: Start difference. First operand 44 states and 63 transitions. Second operand has 13 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 13 states have internal predecessors, (45), 3 states have call successors, (21), 3 states have call predecessors, (21), 5 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-11-19 08:01:03,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:01:03,915 INFO L93 Difference]: Finished difference Result 198 states and 265 transitions. [2023-11-19 08:01:03,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-11-19 08:01:03,917 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 13 states have internal predecessors, (45), 3 states have call successors, (21), 3 states have call predecessors, (21), 5 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 101 [2023-11-19 08:01:03,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:01:03,920 INFO L225 Difference]: With dead ends: 198 [2023-11-19 08:01:03,921 INFO L226 Difference]: Without dead ends: 157 [2023-11-19 08:01:03,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 229 SyntacticMatches, 3 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 374 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=415, Invalid=1067, Unknown=0, NotChecked=0, Total=1482 [2023-11-19 08:01:03,927 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 121 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-19 08:01:03,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 359 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-19 08:01:03,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2023-11-19 08:01:03,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 101. [2023-11-19 08:01:03,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 61 states have (on average 1.1147540983606556) internal successors, (68), 62 states have internal predecessors, (68), 32 states have call successors, (32), 7 states have call predecessors, (32), 7 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-19 08:01:03,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 132 transitions. [2023-11-19 08:01:03,995 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 132 transitions. Word has length 101 [2023-11-19 08:01:03,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:01:03,998 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 132 transitions. [2023-11-19 08:01:03,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 13 states have internal predecessors, (45), 3 states have call successors, (21), 3 states have call predecessors, (21), 5 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-11-19 08:01:03,999 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 132 transitions. [2023-11-19 08:01:04,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-19 08:01:04,007 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:01:04,007 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:01:04,036 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95cc03ff-3b94-4435-aa0a-8dd271807178/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 08:01:04,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95cc03ff-3b94-4435-aa0a-8dd271807178/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-19 08:01:04,229 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:01:04,229 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:04,229 INFO L85 PathProgramCache]: Analyzing trace with hash -512462052, now seen corresponding path program 1 times [2023-11-19 08:01:04,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:04,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582772033] [2023-11-19 08:01:04,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:04,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:04,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:01:04,338 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:01:04,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:01:04,463 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:01:04,463 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 08:01:04,464 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 08:01:04,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 08:01:04,470 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-19 08:01:04,478 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 08:01:04,586 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:01:04 BoogieIcfgContainer [2023-11-19 08:01:04,589 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 08:01:04,590 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 08:01:04,590 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 08:01:04,591 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 08:01:04,591 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:01:00" (3/4) ... [2023-11-19 08:01:04,594 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 08:01:04,595 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 08:01:04,596 INFO L158 Benchmark]: Toolchain (without parser) took 5451.59ms. Allocated memory was 121.6MB in the beginning and 157.3MB in the end (delta: 35.7MB). Free memory was 77.1MB in the beginning and 48.1MB in the end (delta: 29.0MB). Peak memory consumption was 67.8MB. Max. memory is 16.1GB. [2023-11-19 08:01:04,596 INFO L158 Benchmark]: CDTParser took 0.54ms. Allocated memory is still 121.6MB. Free memory is still 92.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:01:04,600 INFO L158 Benchmark]: CACSL2BoogieTranslator took 337.73ms. Allocated memory is still 121.6MB. Free memory was 77.1MB in the beginning and 64.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 08:01:04,601 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.44ms. Allocated memory is still 121.6MB. Free memory was 64.5MB in the beginning and 62.0MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 08:01:04,602 INFO L158 Benchmark]: Boogie Preprocessor took 36.23ms. Allocated memory is still 121.6MB. Free memory was 62.0MB in the beginning and 60.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:01:04,603 INFO L158 Benchmark]: RCFGBuilder took 611.15ms. Allocated memory is still 121.6MB. Free memory was 60.8MB in the beginning and 90.6MB in the end (delta: -29.9MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. [2023-11-19 08:01:04,604 INFO L158 Benchmark]: TraceAbstraction took 4361.43ms. Allocated memory is still 157.3MB. Free memory was 129.0MB in the beginning and 48.1MB in the end (delta: 80.9MB). Peak memory consumption was 80.7MB. Max. memory is 16.1GB. [2023-11-19 08:01:04,606 INFO L158 Benchmark]: Witness Printer took 5.31ms. Allocated memory is still 157.3MB. Free memory is still 48.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:01:04,608 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54ms. Allocated memory is still 121.6MB. Free memory is still 92.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 337.73ms. Allocated memory is still 121.6MB. Free memory was 77.1MB in the beginning and 64.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.44ms. Allocated memory is still 121.6MB. Free memory was 64.5MB in the beginning and 62.0MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.23ms. Allocated memory is still 121.6MB. Free memory was 62.0MB in the beginning and 60.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 611.15ms. Allocated memory is still 121.6MB. Free memory was 60.8MB in the beginning and 90.6MB in the end (delta: -29.9MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. * TraceAbstraction took 4361.43ms. Allocated memory is still 157.3MB. Free memory was 129.0MB in the beginning and 48.1MB in the end (delta: 80.9MB). Peak memory consumption was 80.7MB. Max. memory is 16.1GB. * Witness Printer took 5.31ms. Allocated memory is still 157.3MB. Free memory is still 48.1MB. 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 89, overapproximation of someBinaryDOUBLEComparisonOperation at line 89. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed char var_1_1 = 32; [L23] unsigned char var_1_2 = 0; [L24] signed char var_1_4 = 16; [L25] signed char var_1_5 = 4; [L26] signed char var_1_6 = 0; [L27] unsigned short int var_1_7 = 0; [L28] unsigned short int var_1_10 = 55182; [L29] unsigned char var_1_12 = 0; [L30] unsigned char var_1_14 = 1; [L31] unsigned char var_1_15 = 1; [L32] unsigned char var_1_16 = 100; [L33] signed long int var_1_17 = 2; [L34] signed long int var_1_18 = 199; [L35] signed char var_1_19 = -128; VAL [isInitial=0, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_2=0, var_1_4=16, var_1_5=4, var_1_6=0, var_1_7=0] [L93] isInitial = 1 [L94] FCALL initially() [L95] COND TRUE 1 [L96] FCALL updateLastVariables() [L97] CALL updateVariables() [L61] var_1_2 = __VERIFIER_nondet_uchar() [L62] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_4=16, var_1_5=4, var_1_6=0, var_1_7=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_4=16, var_1_5=4, var_1_6=0, var_1_7=0] [L62] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_4=16, var_1_5=4, var_1_6=0, var_1_7=0] [L63] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=16, var_1_5=4, var_1_6=0, var_1_7=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=16, var_1_5=4, var_1_6=0, var_1_7=0] [L63] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=16, var_1_5=4, var_1_6=0, var_1_7=0] [L64] var_1_4 = __VERIFIER_nondet_char() [L65] CALL assume_abort_if_not(var_1_4 >= -1) VAL [\old(cond)=1, isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=126, var_1_5=4, var_1_6=0, var_1_7=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=126, var_1_5=4, var_1_6=0, var_1_7=0] [L65] RET assume_abort_if_not(var_1_4 >= -1) VAL [isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=126, var_1_5=4, var_1_6=0, var_1_7=0] [L66] CALL assume_abort_if_not(var_1_4 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=126, var_1_5=4, var_1_6=0, var_1_7=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=126, var_1_5=4, var_1_6=0, var_1_7=0] [L66] RET assume_abort_if_not(var_1_4 <= 126) VAL [isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=126, var_1_5=4, var_1_6=0, var_1_7=0] [L67] var_1_5 = __VERIFIER_nondet_char() [L68] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=126, var_1_5=126, var_1_6=0, var_1_7=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=126, var_1_5=126, var_1_6=0, var_1_7=0] [L68] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=126, var_1_5=126, var_1_6=0, var_1_7=0] [L69] CALL assume_abort_if_not(var_1_5 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=126, var_1_5=126, var_1_6=0, var_1_7=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=126, var_1_5=126, var_1_6=0, var_1_7=0] [L69] RET assume_abort_if_not(var_1_5 <= 126) VAL [isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=126, var_1_5=126, var_1_6=0, var_1_7=0] [L70] var_1_6 = __VERIFIER_nondet_char() [L71] CALL assume_abort_if_not(var_1_6 >= -127) VAL [\old(cond)=1, isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=126, var_1_5=126, var_1_6=126, var_1_7=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=126, var_1_5=126, var_1_6=126, var_1_7=0] [L71] RET assume_abort_if_not(var_1_6 >= -127) VAL [isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=126, var_1_5=126, var_1_6=126, var_1_7=0] [L72] CALL assume_abort_if_not(var_1_6 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=126, var_1_5=126, var_1_6=126, var_1_7=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=126, var_1_5=126, var_1_6=126, var_1_7=0] [L72] RET assume_abort_if_not(var_1_6 <= 126) VAL [isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=126, var_1_5=126, var_1_6=126, var_1_7=0] [L73] var_1_10 = __VERIFIER_nondet_ushort() [L74] CALL assume_abort_if_not(var_1_10 >= 32767) VAL [\old(cond)=1, isInitial=1, var_1_10=65534, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=126, var_1_5=126, var_1_6=126, var_1_7=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=65534, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=126, var_1_5=126, var_1_6=126, var_1_7=0] [L74] RET assume_abort_if_not(var_1_10 >= 32767) VAL [isInitial=1, var_1_10=65534, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=126, var_1_5=126, var_1_6=126, var_1_7=0] [L75] CALL assume_abort_if_not(var_1_10 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_10=65534, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=126, var_1_5=126, var_1_6=126, var_1_7=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=65534, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=126, var_1_5=126, var_1_6=126, var_1_7=0] [L75] RET assume_abort_if_not(var_1_10 <= 65534) VAL [isInitial=1, var_1_10=65534, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=126, var_1_5=126, var_1_6=126, var_1_7=0] [L76] var_1_14 = __VERIFIER_nondet_uchar() [L77] CALL assume_abort_if_not(var_1_14 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=65534, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=126, var_1_5=126, var_1_6=126, var_1_7=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=65534, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=126, var_1_5=126, var_1_6=126, var_1_7=0] [L77] RET assume_abort_if_not(var_1_14 >= 1) VAL [isInitial=1, var_1_10=65534, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=126, var_1_5=126, var_1_6=126, var_1_7=0] [L78] CALL assume_abort_if_not(var_1_14 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=65534, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=126, var_1_5=126, var_1_6=126, var_1_7=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=65534, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=126, var_1_5=126, var_1_6=126, var_1_7=0] [L78] RET assume_abort_if_not(var_1_14 <= 1) VAL [isInitial=1, var_1_10=65534, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=126, var_1_5=126, var_1_6=126, var_1_7=0] [L79] var_1_15 = __VERIFIER_nondet_uchar() [L80] CALL assume_abort_if_not(var_1_15 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=65534, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=126, var_1_5=126, var_1_6=126, var_1_7=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=65534, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=126, var_1_5=126, var_1_6=126, var_1_7=0] [L80] RET assume_abort_if_not(var_1_15 >= 1) VAL [isInitial=1, var_1_10=65534, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=126, var_1_5=126, var_1_6=126, var_1_7=0] [L81] CALL assume_abort_if_not(var_1_15 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=65534, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=126, var_1_5=126, var_1_6=126, var_1_7=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=65534, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=126, var_1_5=126, var_1_6=126, var_1_7=0] [L81] RET assume_abort_if_not(var_1_15 <= 1) VAL [isInitial=1, var_1_10=65534, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=126, var_1_5=126, var_1_6=126, var_1_7=0] [L82] var_1_18 = __VERIFIER_nondet_long() [L83] CALL assume_abort_if_not(var_1_18 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_10=65534, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=-1, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=126, var_1_5=126, var_1_6=126, var_1_7=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=65534, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=-1, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=126, var_1_5=126, var_1_6=126, var_1_7=0] [L83] RET assume_abort_if_not(var_1_18 >= -2147483648) VAL [isInitial=1, var_1_10=65534, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=-1, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=126, var_1_5=126, var_1_6=126, var_1_7=0] [L84] CALL assume_abort_if_not(var_1_18 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=65534, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=-1, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=126, var_1_5=126, var_1_6=126, var_1_7=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=65534, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=-1, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=126, var_1_5=126, var_1_6=126, var_1_7=0] [L84] RET assume_abort_if_not(var_1_18 <= 2147483647) VAL [isInitial=1, var_1_10=65534, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=-1, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=126, var_1_5=126, var_1_6=126, var_1_7=0] [L97] RET updateVariables() [L98] CALL step() [L39] COND FALSE !(! var_1_2) [L42] var_1_12 = ((! var_1_15) || (! (! 0))) VAL [isInitial=1, var_1_10=65534, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=-1, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=126, var_1_5=126, var_1_6=126, var_1_7=0] [L44] var_1_16 = var_1_5 [L45] var_1_17 = var_1_18 [L46] var_1_19 = var_1_4 VAL [isInitial=1, var_1_10=65534, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=126, var_1_17=-1, var_1_18=-1, var_1_19=126, var_1_1=32, var_1_2=1, var_1_4=126, var_1_5=126, var_1_6=126, var_1_7=0] [L47] COND FALSE !(var_1_12 || (64.75f < var_1_17)) [L54] var_1_1 = var_1_4 VAL [isInitial=1, var_1_10=65534, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=126, var_1_17=-1, var_1_18=-1, var_1_19=126, var_1_1=126, var_1_2=1, var_1_4=126, var_1_5=126, var_1_6=126, var_1_7=0] [L56] COND FALSE !((((((var_1_17 * 127.75)) > ((var_1_17 / 3.4))) ? ((var_1_17 * 127.75)) : ((var_1_17 / 3.4)))) >= var_1_17) VAL [isInitial=1, var_1_10=65534, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=126, var_1_17=-1, var_1_18=-1, var_1_19=126, var_1_1=126, var_1_2=1, var_1_4=126, var_1_5=126, var_1_6=126, var_1_7=0] [L98] RET step() [L99] CALL, EXPR property() [L89-L90] return ((((((var_1_12 || (64.75f < var_1_17)) ? (var_1_12 ? (var_1_1 == ((signed char) (var_1_4 - var_1_5))) : (var_1_1 == ((signed char) ((((((((var_1_4) > (var_1_5)) ? (var_1_4) : (var_1_5)))) < (var_1_6)) ? (((((var_1_4) > (var_1_5)) ? (var_1_4) : (var_1_5)))) : (var_1_6)))))) : (var_1_1 == ((signed char) var_1_4))) && (((((((var_1_17 * 127.75)) > ((var_1_17 / 3.4))) ? ((var_1_17 * 127.75)) : ((var_1_17 / 3.4)))) >= var_1_17) ? (var_1_7 == ((unsigned short int) (((((var_1_10 - (22925 - var_1_5))) < (var_1_16)) ? ((var_1_10 - (22925 - var_1_5))) : (var_1_16))))) : 1)) && ((! var_1_2) ? (var_1_12 == ((unsigned char) var_1_14)) : (var_1_12 == ((unsigned char) ((! var_1_15) || (! (! 0))))))) && (var_1_16 == ((unsigned char) var_1_5))) && (var_1_17 == ((signed long int) var_1_18))) && (var_1_19 == ((signed char) var_1_4)) ; VAL [\result=0, isInitial=1, var_1_10=65534, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=126, var_1_17=-1, var_1_18=-1, var_1_19=126, var_1_1=126, var_1_2=1, var_1_4=126, var_1_5=126, var_1_6=126, var_1_7=0] [L99] RET, EXPR property() [L99] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=65534, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=126, var_1_17=-1, var_1_18=-1, var_1_19=126, var_1_1=126, var_1_2=1, var_1_4=126, var_1_5=126, var_1_6=126, var_1_7=0] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=65534, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=126, var_1_17=-1, var_1_18=-1, var_1_19=126, var_1_1=126, var_1_2=1, var_1_4=126, var_1_5=126, var_1_6=126, var_1_7=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 48 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.2s, OverallIterations: 3, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 133 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 121 mSDsluCounter, 422 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 283 mSDsCounter, 84 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 471 IncrementalHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 84 mSolverCounterUnsat, 139 mSDtfsCounter, 471 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 319 GetRequests, 279 SyntacticMatches, 3 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 374 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=101occurred in iteration=2, InterpolantAutomatonStates: 36, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 56 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 404 NumberOfCodeBlocks, 404 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 400 ConstructedInterpolants, 0 QuantifiedInterpolants, 1046 SizeOfPredicates, 4 NumberOfNonLiveVariables, 252 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 1866/1920 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 08:01:04,652 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95cc03ff-3b94-4435-aa0a-8dd271807178/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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_95cc03ff-3b94-4435-aa0a-8dd271807178/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95cc03ff-3b94-4435-aa0a-8dd271807178/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_95cc03ff-3b94-4435-aa0a-8dd271807178/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95cc03ff-3b94-4435-aa0a-8dd271807178/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-24.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95cc03ff-3b94-4435-aa0a-8dd271807178/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_95cc03ff-3b94-4435-aa0a-8dd271807178/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 fbed63e7ceb32b7a0e8cf5dc0c27da185670168d6f706e37fa0256a1876a7a11 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:01:07,381 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:01:07,525 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95cc03ff-3b94-4435-aa0a-8dd271807178/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-19 08:01:07,534 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:01:07,535 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:01:07,578 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:01:07,579 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:01:07,580 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:01:07,583 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 08:01:07,588 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 08:01:07,589 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:01:07,589 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:01:07,590 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:01:07,592 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:01:07,592 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 08:01:07,593 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 08:01:07,593 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 08:01:07,594 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:01:07,594 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 08:01:07,595 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 08:01:07,596 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 08:01:07,596 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 08:01:07,597 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 08:01:07,597 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 08:01:07,598 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 08:01:07,598 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 08:01:07,598 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:01:07,599 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:01:07,599 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:01:07,600 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 08:01:07,601 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:01:07,601 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:01:07,602 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 08:01:07,602 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 08:01:07,603 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-19 08:01:07,603 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 08:01:07,603 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 08:01:07,603 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 08:01:07,604 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 08:01:07,604 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 08:01:07,605 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-19 08:01:07,605 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 08:01:07,605 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_95cc03ff-3b94-4435-aa0a-8dd271807178/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95cc03ff-3b94-4435-aa0a-8dd271807178/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fbed63e7ceb32b7a0e8cf5dc0c27da185670168d6f706e37fa0256a1876a7a11 [2023-11-19 08:01:08,039 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:01:08,070 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:01:08,076 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:01:08,077 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:01:08,078 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:01:08,079 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95cc03ff-3b94-4435-aa0a-8dd271807178/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-24.i [2023-11-19 08:01:11,334 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:01:11,629 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:01:11,629 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95cc03ff-3b94-4435-aa0a-8dd271807178/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-24.i [2023-11-19 08:01:11,638 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95cc03ff-3b94-4435-aa0a-8dd271807178/bin/uautomizer-verify-uCwYo4JHxu/data/f135b11df/71f0b2d240a742078ffcc80eb7ffac9f/FLAG7085312c2 [2023-11-19 08:01:11,651 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95cc03ff-3b94-4435-aa0a-8dd271807178/bin/uautomizer-verify-uCwYo4JHxu/data/f135b11df/71f0b2d240a742078ffcc80eb7ffac9f [2023-11-19 08:01:11,653 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:01:11,654 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:01:11,656 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:01:11,656 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:01:11,667 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:01:11,668 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:01:11" (1/1) ... [2023-11-19 08:01:11,669 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ec4e4a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:11, skipping insertion in model container [2023-11-19 08:01:11,669 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:01:11" (1/1) ... [2023-11-19 08:01:11,698 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:01:11,845 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_95cc03ff-3b94-4435-aa0a-8dd271807178/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-24.i[916,929] [2023-11-19 08:01:11,889 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:01:11,914 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:01:11,934 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_95cc03ff-3b94-4435-aa0a-8dd271807178/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-24.i[916,929] [2023-11-19 08:01:11,973 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:01:12,003 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:01:12,003 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:12 WrapperNode [2023-11-19 08:01:12,004 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:01:12,005 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:01:12,005 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:01:12,006 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:01:12,013 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:12" (1/1) ... [2023-11-19 08:01:12,048 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:12" (1/1) ... [2023-11-19 08:01:12,095 INFO L138 Inliner]: procedures = 27, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 101 [2023-11-19 08:01:12,098 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:01:12,099 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:01:12,099 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:01:12,099 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:01:12,110 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:12" (1/1) ... [2023-11-19 08:01:12,110 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:12" (1/1) ... [2023-11-19 08:01:12,117 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:12" (1/1) ... [2023-11-19 08:01:12,118 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:12" (1/1) ... [2023-11-19 08:01:12,138 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:12" (1/1) ... [2023-11-19 08:01:12,142 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:12" (1/1) ... [2023-11-19 08:01:12,145 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:12" (1/1) ... [2023-11-19 08:01:12,146 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:12" (1/1) ... [2023-11-19 08:01:12,150 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:01:12,151 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:01:12,152 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:01:12,152 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:01:12,153 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:12" (1/1) ... [2023-11-19 08:01:12,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:01:12,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95cc03ff-3b94-4435-aa0a-8dd271807178/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:01:12,197 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95cc03ff-3b94-4435-aa0a-8dd271807178/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 08:01:12,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95cc03ff-3b94-4435-aa0a-8dd271807178/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 08:01:12,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:01:12,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 08:01:12,253 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 08:01:12,253 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 08:01:12,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:01:12,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:01:12,378 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:01:12,384 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:01:19,368 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:01:19,379 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:01:19,392 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 08:01:19,396 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:01:19 BoogieIcfgContainer [2023-11-19 08:01:19,401 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:01:19,405 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 08:01:19,406 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 08:01:19,409 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 08:01:19,410 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:01:11" (1/3) ... [2023-11-19 08:01:19,411 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f31c1d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:01:19, skipping insertion in model container [2023-11-19 08:01:19,411 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:12" (2/3) ... [2023-11-19 08:01:19,413 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f31c1d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:01:19, skipping insertion in model container [2023-11-19 08:01:19,414 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:01:19" (3/3) ... [2023-11-19 08:01:19,418 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-24.i [2023-11-19 08:01:19,442 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 08:01:19,442 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 08:01:19,490 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:01:19,496 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;@373924ab, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:01:19,497 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 08:01:19,501 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 30 states have internal predecessors, (38), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-19 08:01:19,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-19 08:01:19,515 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:01:19,516 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:01:19,516 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:01:19,522 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:19,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1608189602, now seen corresponding path program 1 times [2023-11-19 08:01:19,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 08:01:19,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1218864810] [2023-11-19 08:01:19,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:19,537 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 08:01:19,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95cc03ff-3b94-4435-aa0a-8dd271807178/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 08:01:19,547 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95cc03ff-3b94-4435-aa0a-8dd271807178/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 08:01:19,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95cc03ff-3b94-4435-aa0a-8dd271807178/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 08:01:20,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:20,650 INFO L262 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 08:01:20,676 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:01:20,729 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2023-11-19 08:01:20,730 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:01:20,731 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 08:01:20,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1218864810] [2023-11-19 08:01:20,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1218864810] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:01:20,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:01:20,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:01:20,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87567077] [2023-11-19 08:01:20,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:01:20,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 08:01:20,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 08:01:20,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 08:01:20,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 08:01:20,785 INFO L87 Difference]: Start difference. First operand has 48 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 30 states have internal predecessors, (38), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-19 08:01:20,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:01:20,817 INFO L93 Difference]: Finished difference Result 89 states and 150 transitions. [2023-11-19 08:01:20,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 08:01:20,822 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 101 [2023-11-19 08:01:20,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:01:20,830 INFO L225 Difference]: With dead ends: 89 [2023-11-19 08:01:20,830 INFO L226 Difference]: Without dead ends: 44 [2023-11-19 08:01:20,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 100 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 08:01:20,839 INFO L413 NwaCegarLoop]: 63 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, 63 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 08:01:20,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:01:20,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2023-11-19 08:01:20,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2023-11-19 08:01:20,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 26 states have internal predecessors, (31), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-19 08:01:20,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 63 transitions. [2023-11-19 08:01:20,882 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 63 transitions. Word has length 101 [2023-11-19 08:01:20,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:01:20,883 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 63 transitions. [2023-11-19 08:01:20,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-19 08:01:20,884 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 63 transitions. [2023-11-19 08:01:20,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-19 08:01:20,889 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:01:20,889 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:01:20,917 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95cc03ff-3b94-4435-aa0a-8dd271807178/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 08:01:21,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95cc03ff-3b94-4435-aa0a-8dd271807178/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 08:01:21,109 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:01:21,110 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:21,110 INFO L85 PathProgramCache]: Analyzing trace with hash 296884574, now seen corresponding path program 1 times [2023-11-19 08:01:21,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 08:01:21,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1861358614] [2023-11-19 08:01:21,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:21,111 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 08:01:21,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95cc03ff-3b94-4435-aa0a-8dd271807178/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 08:01:21,113 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95cc03ff-3b94-4435-aa0a-8dd271807178/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 08:01:21,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95cc03ff-3b94-4435-aa0a-8dd271807178/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 08:01:22,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:22,172 INFO L262 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 08:01:22,179 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:01:24,279 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 242 proven. 24 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2023-11-19 08:01:24,280 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:01:25,575 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 15 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-11-19 08:01:25,575 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 08:01:25,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1861358614] [2023-11-19 08:01:25,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1861358614] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 08:01:25,576 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 08:01:25,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6] total 12 [2023-11-19 08:01:25,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298139467] [2023-11-19 08:01:25,577 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 08:01:25,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-19 08:01:25,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 08:01:25,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-19 08:01:25,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-11-19 08:01:25,582 INFO L87 Difference]: Start difference. First operand 44 states and 63 transitions. Second operand has 12 states, 12 states have (on average 3.5) internal successors, (42), 12 states have internal predecessors, (42), 3 states have call successors, (21), 3 states have call predecessors, (21), 5 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-11-19 08:01:30,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 08:01:32,815 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 08:01:34,826 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 08:01:36,847 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 08:01:38,855 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 08:01:40,860 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 08:01:42,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 08:01:44,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 08:01:46,815 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 08:01:50,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:01:50,767 INFO L93 Difference]: Finished difference Result 194 states and 262 transitions. [2023-11-19 08:01:50,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-11-19 08:01:50,769 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.5) internal successors, (42), 12 states have internal predecessors, (42), 3 states have call successors, (21), 3 states have call predecessors, (21), 5 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 101 [2023-11-19 08:01:50,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:01:50,774 INFO L225 Difference]: With dead ends: 194 [2023-11-19 08:01:50,774 INFO L226 Difference]: Without dead ends: 153 [2023-11-19 08:01:50,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 193 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=333, Invalid=857, Unknown=0, NotChecked=0, Total=1190 [2023-11-19 08:01:50,784 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 127 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 90 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.6s IncrementalHoareTripleChecker+Time [2023-11-19 08:01:50,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 293 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 342 Invalid, 8 Unknown, 0 Unchecked, 22.6s Time] [2023-11-19 08:01:50,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2023-11-19 08:01:50,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 55. [2023-11-19 08:01:50,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 35 states have (on average 1.1428571428571428) internal successors, (40), 35 states have internal predecessors, (40), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-19 08:01:50,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 72 transitions. [2023-11-19 08:01:50,847 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 72 transitions. Word has length 101 [2023-11-19 08:01:50,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:01:50,851 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 72 transitions. [2023-11-19 08:01:50,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.5) internal successors, (42), 12 states have internal predecessors, (42), 3 states have call successors, (21), 3 states have call predecessors, (21), 5 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-11-19 08:01:50,851 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 72 transitions. [2023-11-19 08:01:50,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-19 08:01:50,860 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:01:50,861 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:01:50,885 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95cc03ff-3b94-4435-aa0a-8dd271807178/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-19 08:01:51,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95cc03ff-3b94-4435-aa0a-8dd271807178/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 08:01:51,076 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:01:51,076 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:51,076 INFO L85 PathProgramCache]: Analyzing trace with hash -512462052, now seen corresponding path program 1 times [2023-11-19 08:01:51,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 08:01:51,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1671809699] [2023-11-19 08:01:51,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:51,078 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 08:01:51,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95cc03ff-3b94-4435-aa0a-8dd271807178/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 08:01:51,079 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95cc03ff-3b94-4435-aa0a-8dd271807178/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 08:01:51,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95cc03ff-3b94-4435-aa0a-8dd271807178/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 08:01:52,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:52,247 INFO L262 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-19 08:01:52,254 INFO L285 TraceCheckSpWp]: Computing forward predicates...