./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/water_pid.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5596fb52-fc7c-4ed6-bb2e-ce31cedb9d69/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5596fb52-fc7c-4ed6-bb2e-ce31cedb9d69/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5596fb52-fc7c-4ed6-bb2e-ce31cedb9d69/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5596fb52-fc7c-4ed6-bb2e-ce31cedb9d69/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/water_pid.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5596fb52-fc7c-4ed6-bb2e-ce31cedb9d69/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5596fb52-fc7c-4ed6-bb2e-ce31cedb9d69/bin/uautomizer-verify-aQ6SnzHsRB --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 934622c50be6b43827f31f94ee6f464812ea7c1827ffb5fb855e650934cdada0 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 23:28:29,123 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:28:29,193 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5596fb52-fc7c-4ed6-bb2e-ce31cedb9d69/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-27 23:28:29,198 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:28:29,202 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:28:29,247 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:28:29,248 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:28:29,248 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:28:29,249 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 23:28:29,249 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 23:28:29,250 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 23:28:29,250 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 23:28:29,251 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:28:29,251 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:28:29,252 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:28:29,252 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:28:29,252 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 23:28:29,253 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 23:28:29,253 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 23:28:29,253 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 23:28:29,253 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:28:29,253 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 23:28:29,253 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 23:28:29,253 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 23:28:29,254 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 23:28:29,254 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 23:28:29,254 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:28:29,254 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:28:29,254 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 23:28:29,254 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:28:29,254 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:28:29,254 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:28:29,255 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:28:29,255 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:28:29,255 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:28:29,255 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:28:29,255 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:28:29,255 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:28:29,255 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:28:29,255 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 23:28:29,255 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 23:28:29,255 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 23:28:29,255 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 23:28:29,256 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 23:28:29,256 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 23:28:29,256 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 23:28:29,256 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 23:28:29,256 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 23:28:29,256 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_5596fb52-fc7c-4ed6-bb2e-ce31cedb9d69/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 934622c50be6b43827f31f94ee6f464812ea7c1827ffb5fb855e650934cdada0 [2024-11-27 23:28:29,544 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:28:29,553 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:28:29,555 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:28:29,557 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:28:29,557 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:28:29,558 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5596fb52-fc7c-4ed6-bb2e-ce31cedb9d69/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/float-benchs/water_pid.c [2024-11-27 23:28:32,606 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5596fb52-fc7c-4ed6-bb2e-ce31cedb9d69/bin/uautomizer-verify-aQ6SnzHsRB/data/5f98979af/9d5eef37af864a0ca080255e93e00da6/FLAG4732f8d31 [2024-11-27 23:28:32,953 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:28:32,958 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5596fb52-fc7c-4ed6-bb2e-ce31cedb9d69/sv-benchmarks/c/float-benchs/water_pid.c [2024-11-27 23:28:32,973 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5596fb52-fc7c-4ed6-bb2e-ce31cedb9d69/bin/uautomizer-verify-aQ6SnzHsRB/data/5f98979af/9d5eef37af864a0ca080255e93e00da6/FLAG4732f8d31 [2024-11-27 23:28:32,992 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5596fb52-fc7c-4ed6-bb2e-ce31cedb9d69/bin/uautomizer-verify-aQ6SnzHsRB/data/5f98979af/9d5eef37af864a0ca080255e93e00da6 [2024-11-27 23:28:32,995 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:28:32,999 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:28:33,001 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:28:33,001 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:28:33,010 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:28:33,011 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:28:32" (1/1) ... [2024-11-27 23:28:33,020 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33646a77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:28:33, skipping insertion in model container [2024-11-27 23:28:33,021 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:28:32" (1/1) ... [2024-11-27 23:28:33,036 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:28:33,227 WARN L250 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_5596fb52-fc7c-4ed6-bb2e-ce31cedb9d69/sv-benchmarks/c/float-benchs/water_pid.c[452,465] [2024-11-27 23:28:33,263 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:28:33,275 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 23:28:33,290 WARN L250 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_5596fb52-fc7c-4ed6-bb2e-ce31cedb9d69/sv-benchmarks/c/float-benchs/water_pid.c[452,465] [2024-11-27 23:28:33,298 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:28:33,318 INFO L204 MainTranslator]: Completed translation [2024-11-27 23:28:33,319 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:28:33 WrapperNode [2024-11-27 23:28:33,320 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 23:28:33,322 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 23:28:33,322 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 23:28:33,322 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 23:28:33,334 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:28:33" (1/1) ... [2024-11-27 23:28:33,341 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:28:33" (1/1) ... [2024-11-27 23:28:33,358 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 54 [2024-11-27 23:28:33,358 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 23:28:33,359 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 23:28:33,359 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 23:28:33,359 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 23:28:33,369 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:28:33" (1/1) ... [2024-11-27 23:28:33,369 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:28:33" (1/1) ... [2024-11-27 23:28:33,371 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:28:33" (1/1) ... [2024-11-27 23:28:33,382 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-27 23:28:33,382 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:28:33" (1/1) ... [2024-11-27 23:28:33,382 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:28:33" (1/1) ... [2024-11-27 23:28:33,386 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:28:33" (1/1) ... [2024-11-27 23:28:33,387 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:28:33" (1/1) ... [2024-11-27 23:28:33,390 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:28:33" (1/1) ... [2024-11-27 23:28:33,391 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:28:33" (1/1) ... [2024-11-27 23:28:33,391 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:28:33" (1/1) ... [2024-11-27 23:28:33,393 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 23:28:33,394 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 23:28:33,394 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 23:28:33,395 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 23:28:33,396 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:28:33" (1/1) ... [2024-11-27 23:28:33,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:28:33,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5596fb52-fc7c-4ed6-bb2e-ce31cedb9d69/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:28:33,436 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5596fb52-fc7c-4ed6-bb2e-ce31cedb9d69/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 23:28:33,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5596fb52-fc7c-4ed6-bb2e-ce31cedb9d69/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 23:28:33,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 23:28:33,475 INFO L130 BoogieDeclarations]: Found specification of procedure y [2024-11-27 23:28:33,475 INFO L138 BoogieDeclarations]: Found implementation of procedure y [2024-11-27 23:28:33,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 23:28:33,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 23:28:33,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 23:28:33,551 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 23:28:33,552 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 23:28:33,665 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-11-27 23:28:33,666 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 23:28:33,677 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 23:28:33,677 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-27 23:28:33,678 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:28:33 BoogieIcfgContainer [2024-11-27 23:28:33,678 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 23:28:33,682 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 23:28:33,682 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 23:28:33,688 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 23:28:33,688 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:28:32" (1/3) ... [2024-11-27 23:28:33,689 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@634881a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:28:33, skipping insertion in model container [2024-11-27 23:28:33,690 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:28:33" (2/3) ... [2024-11-27 23:28:33,690 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@634881a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:28:33, skipping insertion in model container [2024-11-27 23:28:33,690 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:28:33" (3/3) ... [2024-11-27 23:28:33,692 INFO L128 eAbstractionObserver]: Analyzing ICFG water_pid.c [2024-11-27 23:28:33,711 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 23:28:33,714 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG water_pid.c that has 2 procedures, 18 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-27 23:28:33,773 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 23:28:33,787 INFO L333 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, 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;@d43b5d0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 23:28:33,787 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 23:28:33,792 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 14 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:28:33,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-27 23:28:33,799 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:28:33,800 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:28:33,800 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:28:33,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:28:33,806 INFO L85 PathProgramCache]: Analyzing trace with hash -1121688662, now seen corresponding path program 1 times [2024-11-27 23:28:33,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:28:33,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956180020] [2024-11-27 23:28:33,815 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:28:33,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:28:33,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:28:33,925 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:28:33,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:28:33,978 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-27 23:28:33,980 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-27 23:28:33,983 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-27 23:28:33,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 23:28:33,993 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-11-27 23:28:34,016 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-27 23:28:34,020 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 11:28:34 BoogieIcfgContainer [2024-11-27 23:28:34,020 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-27 23:28:34,021 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 23:28:34,021 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 23:28:34,021 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 23:28:34,022 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:28:33" (3/4) ... [2024-11-27 23:28:34,025 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-27 23:28:34,026 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 23:28:34,027 INFO L158 Benchmark]: Toolchain (without parser) took 1030.95ms. Allocated memory is still 167.8MB. Free memory was 131.4MB in the beginning and 93.2MB in the end (delta: 38.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-27 23:28:34,028 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 167.8MB. Free memory is still 104.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:28:34,028 INFO L158 Benchmark]: CACSL2BoogieTranslator took 320.22ms. Allocated memory is still 167.8MB. Free memory was 131.4MB in the beginning and 120.2MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 23:28:34,029 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.68ms. Allocated memory is still 167.8MB. Free memory was 120.2MB in the beginning and 119.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:28:34,029 INFO L158 Benchmark]: Boogie Preprocessor took 34.54ms. Allocated memory is still 167.8MB. Free memory was 119.1MB in the beginning and 117.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:28:34,030 INFO L158 Benchmark]: RCFGBuilder took 284.72ms. Allocated memory is still 167.8MB. Free memory was 117.7MB in the beginning and 107.4MB in the end (delta: 10.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 23:28:34,030 INFO L158 Benchmark]: TraceAbstraction took 337.77ms. Allocated memory is still 167.8MB. Free memory was 106.7MB in the beginning and 93.2MB in the end (delta: 13.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 23:28:34,030 INFO L158 Benchmark]: Witness Printer took 5.41ms. Allocated memory is still 167.8MB. Free memory is still 93.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:28:34,033 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 167.8MB. Free memory is still 104.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 320.22ms. Allocated memory is still 167.8MB. Free memory was 131.4MB in the beginning and 120.2MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.68ms. Allocated memory is still 167.8MB. Free memory was 120.2MB in the beginning and 119.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 34.54ms. Allocated memory is still 167.8MB. Free memory was 119.1MB in the beginning and 117.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 284.72ms. Allocated memory is still 167.8MB. Free memory was 117.7MB in the beginning and 107.4MB in the end (delta: 10.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 337.77ms. Allocated memory is still 167.8MB. Free memory was 106.7MB in the beginning and 93.2MB in the end (delta: 13.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Witness Printer took 5.41ms. Allocated memory is still 167.8MB. Free memory is still 93.2MB. 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: 8]: 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 someBinaryArithmeticDOUBLEoperation at line 41, overapproximation of someBinaryArithmeticDOUBLEoperation at line 37, overapproximation of someBinaryArithmeticDOUBLEoperation at line 18, overapproximation of someBinaryDOUBLEComparisonOperation at line 46, overapproximation of to_real at line 31, overapproximation of to_real at line 12. Possible FailurePath: [L12] static NUM yn = 0; [L14] NUM ui = 0; [L24] NUM yi, yc; [L25] NUM K; [L26] NUM T; [L27] NUM taui; [L28] NUM taud; [L29] NUM ei, sumej, epi; [L30] int i; [L31] T = 1 [L32] taui = 1 [L33] taud = 1 [L34] K = .5 [L35] yc = .5 [L36] CALL, EXPR y(0) VAL [\old(i)=0, \old(yn)=54, yn=54] [L18] yn += ui [L19] return yn; VAL [\old(i)=0, \old(yn)=54, \result=53, yn=53] [L36] RET, EXPR y(0) VAL [yn=53] [L36] yi = y(0) [L37] epi = yc-yi [L38] sumej = epi [L39] i=0 VAL [i=0, yn=53] [L39] COND TRUE i<120 VAL [i=0, yn=53] [L40] CALL, EXPR y(i) VAL [\old(i)=0, \old(yn)=53, yn=53] [L18] yn += ui [L19] return yn; VAL [\old(i)=0, \old(yn)=53, \result=55, yn=55] [L40] RET, EXPR y(i) VAL [i=0, yn=55] [L40] yi = y(i) [L41] ei = yc-yi [L42] sumej = sumej+ei [L43] ui = K*(ei+sumej*T/taui+taud/T*(ei-epi)) [L44] epi = ei [L46] CALL __VERIFIER_assert(epi >= -1. && epi <= 1.) [L8] COND TRUE !(cond) VAL [yn=55] [L8] reach_error() VAL [yn=55] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 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, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-27 23:28:34,054 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5596fb52-fc7c-4ed6-bb2e-ce31cedb9d69/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5596fb52-fc7c-4ed6-bb2e-ce31cedb9d69/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5596fb52-fc7c-4ed6-bb2e-ce31cedb9d69/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5596fb52-fc7c-4ed6-bb2e-ce31cedb9d69/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5596fb52-fc7c-4ed6-bb2e-ce31cedb9d69/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/water_pid.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5596fb52-fc7c-4ed6-bb2e-ce31cedb9d69/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5596fb52-fc7c-4ed6-bb2e-ce31cedb9d69/bin/uautomizer-verify-aQ6SnzHsRB --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 934622c50be6b43827f31f94ee6f464812ea7c1827ffb5fb855e650934cdada0 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 23:28:36,809 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:28:36,917 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5596fb52-fc7c-4ed6-bb2e-ce31cedb9d69/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-27 23:28:36,935 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:28:36,936 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:28:36,963 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:28:36,963 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:28:36,964 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:28:36,964 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 23:28:36,964 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 23:28:36,964 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 23:28:36,965 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 23:28:36,965 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:28:36,965 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:28:36,966 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:28:36,966 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:28:36,966 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 23:28:36,967 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 23:28:36,967 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 23:28:36,967 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:28:36,967 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 23:28:36,967 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 23:28:36,967 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 23:28:36,967 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-27 23:28:36,968 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-27 23:28:36,968 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-27 23:28:36,968 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 23:28:36,968 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 23:28:36,968 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:28:36,968 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:28:36,969 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 23:28:36,969 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:28:36,969 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:28:36,969 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:28:36,969 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:28:36,970 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:28:36,970 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:28:36,970 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:28:36,970 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:28:36,970 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:28:36,971 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:28:36,971 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 23:28:36,971 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 23:28:36,971 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 23:28:36,971 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-27 23:28:36,972 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-27 23:28:36,972 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 23:28:36,972 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 23:28:36,972 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 23:28:36,972 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 23:28:36,972 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_5596fb52-fc7c-4ed6-bb2e-ce31cedb9d69/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 934622c50be6b43827f31f94ee6f464812ea7c1827ffb5fb855e650934cdada0 [2024-11-27 23:28:37,294 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:28:37,305 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:28:37,308 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:28:37,310 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:28:37,311 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:28:37,312 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5596fb52-fc7c-4ed6-bb2e-ce31cedb9d69/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/float-benchs/water_pid.c [2024-11-27 23:28:40,337 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5596fb52-fc7c-4ed6-bb2e-ce31cedb9d69/bin/uautomizer-verify-aQ6SnzHsRB/data/cdd36ef6b/d7e9bb859c5c4941b4e5f7cfeaf33e23/FLAG051c38de0 [2024-11-27 23:28:40,608 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:28:40,609 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5596fb52-fc7c-4ed6-bb2e-ce31cedb9d69/sv-benchmarks/c/float-benchs/water_pid.c [2024-11-27 23:28:40,618 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5596fb52-fc7c-4ed6-bb2e-ce31cedb9d69/bin/uautomizer-verify-aQ6SnzHsRB/data/cdd36ef6b/d7e9bb859c5c4941b4e5f7cfeaf33e23/FLAG051c38de0 [2024-11-27 23:28:40,635 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5596fb52-fc7c-4ed6-bb2e-ce31cedb9d69/bin/uautomizer-verify-aQ6SnzHsRB/data/cdd36ef6b/d7e9bb859c5c4941b4e5f7cfeaf33e23 [2024-11-27 23:28:40,638 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:28:40,640 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:28:40,642 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:28:40,642 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:28:40,647 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:28:40,649 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:28:40" (1/1) ... [2024-11-27 23:28:40,650 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c49dd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:28:40, skipping insertion in model container [2024-11-27 23:28:40,650 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:28:40" (1/1) ... [2024-11-27 23:28:40,667 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:28:40,809 WARN L250 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_5596fb52-fc7c-4ed6-bb2e-ce31cedb9d69/sv-benchmarks/c/float-benchs/water_pid.c[452,465] [2024-11-27 23:28:40,832 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:28:40,848 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 23:28:40,862 WARN L250 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_5596fb52-fc7c-4ed6-bb2e-ce31cedb9d69/sv-benchmarks/c/float-benchs/water_pid.c[452,465] [2024-11-27 23:28:40,869 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:28:40,886 INFO L204 MainTranslator]: Completed translation [2024-11-27 23:28:40,886 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:28:40 WrapperNode [2024-11-27 23:28:40,887 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 23:28:40,888 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 23:28:40,888 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 23:28:40,888 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 23:28:40,894 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:28:40" (1/1) ... [2024-11-27 23:28:40,903 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:28:40" (1/1) ... [2024-11-27 23:28:40,920 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 55 [2024-11-27 23:28:40,920 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 23:28:40,921 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 23:28:40,921 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 23:28:40,921 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 23:28:40,931 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:28:40" (1/1) ... [2024-11-27 23:28:40,931 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:28:40" (1/1) ... [2024-11-27 23:28:40,933 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:28:40" (1/1) ... [2024-11-27 23:28:40,942 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-27 23:28:40,943 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:28:40" (1/1) ... [2024-11-27 23:28:40,943 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:28:40" (1/1) ... [2024-11-27 23:28:40,950 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:28:40" (1/1) ... [2024-11-27 23:28:40,951 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:28:40" (1/1) ... [2024-11-27 23:28:40,954 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:28:40" (1/1) ... [2024-11-27 23:28:40,955 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:28:40" (1/1) ... [2024-11-27 23:28:40,956 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:28:40" (1/1) ... [2024-11-27 23:28:40,959 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 23:28:40,959 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 23:28:40,960 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 23:28:40,960 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 23:28:40,961 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:28:40" (1/1) ... [2024-11-27 23:28:40,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:28:40,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5596fb52-fc7c-4ed6-bb2e-ce31cedb9d69/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:28:40,996 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5596fb52-fc7c-4ed6-bb2e-ce31cedb9d69/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 23:28:41,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5596fb52-fc7c-4ed6-bb2e-ce31cedb9d69/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 23:28:41,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 23:28:41,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-27 23:28:41,030 INFO L130 BoogieDeclarations]: Found specification of procedure y [2024-11-27 23:28:41,030 INFO L138 BoogieDeclarations]: Found implementation of procedure y [2024-11-27 23:28:41,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 23:28:41,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 23:28:41,122 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 23:28:41,124 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 23:28:46,770 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-27 23:28:46,770 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 23:28:46,781 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 23:28:46,782 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-27 23:28:46,782 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:28:46 BoogieIcfgContainer [2024-11-27 23:28:46,782 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 23:28:46,785 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 23:28:46,785 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 23:28:46,791 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 23:28:46,791 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:28:40" (1/3) ... [2024-11-27 23:28:46,792 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fb818fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:28:46, skipping insertion in model container [2024-11-27 23:28:46,792 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:28:40" (2/3) ... [2024-11-27 23:28:46,793 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fb818fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:28:46, skipping insertion in model container [2024-11-27 23:28:46,793 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:28:46" (3/3) ... [2024-11-27 23:28:46,794 INFO L128 eAbstractionObserver]: Analyzing ICFG water_pid.c [2024-11-27 23:28:46,811 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 23:28:46,812 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG water_pid.c that has 2 procedures, 18 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-27 23:28:46,872 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 23:28:46,904 INFO L333 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, 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;@5ec3bfa1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 23:28:46,906 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 23:28:46,910 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 14 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:28:46,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-27 23:28:46,919 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:28:46,920 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:28:46,920 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:28:46,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:28:46,928 INFO L85 PathProgramCache]: Analyzing trace with hash -1121688662, now seen corresponding path program 1 times [2024-11-27 23:28:46,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:28:46,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1781494690] [2024-11-27 23:28:46,941 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:28:46,942 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 [2024-11-27 23:28:46,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5596fb52-fc7c-4ed6-bb2e-ce31cedb9d69/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:28:46,947 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5596fb52-fc7c-4ed6-bb2e-ce31cedb9d69/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-27 23:28:46,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5596fb52-fc7c-4ed6-bb2e-ce31cedb9d69/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-27 23:28:49,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:28:49,847 INFO L256 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-27 23:28:49,854 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:28:59,998 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 23:28:59,998 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:28:59,999 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:29:00,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1781494690] [2024-11-27 23:29:00,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1781494690] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:29:00,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:29:00,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 23:29:00,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831704833] [2024-11-27 23:29:00,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:29:00,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 23:29:00,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:29:00,039 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 23:29:00,040 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:29:00,042 INFO L87 Difference]: Start difference. First operand has 18 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 14 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 6 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 23:29:07,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.99s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-27 23:29:11,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-27 23:29:15,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-27 23:29:19,703 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-27 23:29:23,716 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-27 23:29:27,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-27 23:29:31,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-27 23:29:37,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.99s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-27 23:29:41,759 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-27 23:29:45,762 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-27 23:29:49,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-27 23:29:53,770 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-27 23:29:57,773 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-27 23:30:01,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-27 23:30:02,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:02,210 INFO L93 Difference]: Finished difference Result 43 states and 50 transitions. [2024-11-27 23:30:02,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 23:30:02,213 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 6 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2024-11-27 23:30:02,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:02,220 INFO L225 Difference]: With dead ends: 43 [2024-11-27 23:30:02,221 INFO L226 Difference]: Without dead ends: 21 [2024-11-27 23:30:02,224 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-27 23:30:02,231 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 6 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 7 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 59.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 60.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:02,234 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 70 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 49 Invalid, 14 Unknown, 0 Unchecked, 60.7s Time] [2024-11-27 23:30:02,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2024-11-27 23:30:02,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2024-11-27 23:30:02,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 15 states have internal predecessors, (16), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-27 23:30:02,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2024-11-27 23:30:02,309 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 15 [2024-11-27 23:30:02,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:02,310 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2024-11-27 23:30:02,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 6 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 23:30:02,310 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2024-11-27 23:30:02,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-27 23:30:02,311 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:02,312 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:30:02,351 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5596fb52-fc7c-4ed6-bb2e-ce31cedb9d69/bin/uautomizer-verify-aQ6SnzHsRB/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)] Ended with exit code 0 [2024-11-27 23:30:02,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5596fb52-fc7c-4ed6-bb2e-ce31cedb9d69/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-27 23:30:02,512 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:30:02,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:02,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1030218674, now seen corresponding path program 1 times [2024-11-27 23:30:02,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:30:02,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [363480807] [2024-11-27 23:30:02,513 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:02,514 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 [2024-11-27 23:30:02,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5596fb52-fc7c-4ed6-bb2e-ce31cedb9d69/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:30:02,516 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5596fb52-fc7c-4ed6-bb2e-ce31cedb9d69/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-27 23:30:02,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5596fb52-fc7c-4ed6-bb2e-ce31cedb9d69/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-27 23:30:06,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:07,118 WARN L254 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-27 23:30:07,123 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:30:33,690 WARN L286 SmtUtils]: Spent 8.38s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 23:30:41,979 WARN L286 SmtUtils]: Spent 8.29s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 23:30:50,357 WARN L286 SmtUtils]: Spent 8.38s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 23:30:54,446 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (let ((.cse0 (fp.add c_currentRoundingMode .cse1 .cse1)) (.cse2 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 2.0)))) (and (= c_~yn~0 (fp.add c_currentRoundingMode .cse0 .cse1)) (= (fp.mul c_currentRoundingMode .cse2 (let ((.cse5 ((_ to_fp 11 53) c_currentRoundingMode (_ bv1 32))) (.cse3 (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~yc~0#1| c_~yn~0)) (.cse4 (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~yc~0#1| .cse0))) (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode .cse3 (fp.div c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.add c_currentRoundingMode .cse4 .cse3) .cse5) .cse5)) (fp.mul c_currentRoundingMode (fp.div c_currentRoundingMode .cse5 .cse5) (fp.sub c_currentRoundingMode .cse3 .cse4))))) c_~ui~0) (= |c_ULTIMATE.start_main_~yc~0#1| .cse2) (= c_currentRoundingMode roundNearestTiesToEven)))) is different from false [2024-11-27 23:30:58,490 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (let ((.cse0 (fp.add c_currentRoundingMode .cse1 .cse1)) (.cse2 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 2.0)))) (and (= c_~yn~0 (fp.add c_currentRoundingMode .cse0 .cse1)) (= (fp.mul c_currentRoundingMode .cse2 (let ((.cse5 ((_ to_fp 11 53) c_currentRoundingMode (_ bv1 32))) (.cse3 (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~yc~0#1| c_~yn~0)) (.cse4 (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~yc~0#1| .cse0))) (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode .cse3 (fp.div c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.add c_currentRoundingMode .cse4 .cse3) .cse5) .cse5)) (fp.mul c_currentRoundingMode (fp.div c_currentRoundingMode .cse5 .cse5) (fp.sub c_currentRoundingMode .cse3 .cse4))))) c_~ui~0) (= |c_ULTIMATE.start_main_~yc~0#1| .cse2) (= c_currentRoundingMode roundNearestTiesToEven)))) is different from true [2024-11-27 23:31:06,864 WARN L286 SmtUtils]: Spent 8.31s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 23:31:15,129 WARN L286 SmtUtils]: Spent 8.26s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 23:31:23,428 WARN L286 SmtUtils]: Spent 8.30s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 23:31:31,828 WARN L286 SmtUtils]: Spent 8.33s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 23:31:40,179 WARN L286 SmtUtils]: Spent 8.35s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 23:31:48,455 WARN L286 SmtUtils]: Spent 8.28s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 23:31:56,811 WARN L286 SmtUtils]: Spent 8.29s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 23:32:05,040 WARN L286 SmtUtils]: Spent 8.23s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 23:32:13,330 WARN L286 SmtUtils]: Spent 8.29s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 23:33:24,889 WARN L286 SmtUtils]: Spent 7.38s on a formula simplification. DAG size of input: 32 DAG size of output: 1 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 23:33:33,322 WARN L286 SmtUtils]: Spent 8.35s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 23:33:37,436 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 2.0)))) (and (= |c_ULTIMATE.start_main_~yc~0#1| .cse0) (= c_currentRoundingMode roundNearestTiesToEven) (= (let ((.cse6 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (let ((.cse5 (fp.add c_currentRoundingMode .cse6 .cse6))) (let ((.cse1 (fp.add c_currentRoundingMode .cse5 .cse6))) (fp.add c_currentRoundingMode .cse1 (fp.mul c_currentRoundingMode .cse0 (let ((.cse4 ((_ to_fp 11 53) c_currentRoundingMode (_ bv1 32))) (.cse2 (fp.sub c_currentRoundingMode .cse0 .cse1)) (.cse3 (fp.sub c_currentRoundingMode .cse0 .cse5))) (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode .cse2 (fp.div c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.add c_currentRoundingMode .cse3 .cse2) .cse4) .cse4)) (fp.mul c_currentRoundingMode (fp.div c_currentRoundingMode .cse4 .cse4) (fp.sub c_currentRoundingMode .cse2 .cse3))))))))) |c_ULTIMATE.start_main_#t~ret5#1|))) is different from false [2024-11-27 23:33:38,698 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 4 not checked. [2024-11-27 23:33:38,698 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:34:04,223 WARN L286 SmtUtils]: Spent 7.11s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 23:34:56,846 WARN L286 SmtUtils]: Spent 7.46s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 23:35:02,751 WARN L286 SmtUtils]: Spent 5.90s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 23:35:10,823 WARN L286 SmtUtils]: Spent 8.07s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 23:35:18,102 WARN L286 SmtUtils]: Spent 7.28s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 23:35:26,133 WARN L286 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 23:35:34,231 WARN L286 SmtUtils]: Spent 8.10s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 23:35:38,324 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (let ((.cse2 (fp.neg .cse0)) (.cse3 (fp.add c_currentRoundingMode |c_old(~yn~0)| c_~ui~0))) (and (forall ((|v_ULTIMATE.start_main_~yc~0#1_BEFORE_CALL_6| (_ FloatingPoint 11 53))) (let ((.cse1 (fp.sub c_currentRoundingMode |v_ULTIMATE.start_main_~yc~0#1_BEFORE_CALL_6| .cse3))) (or (fp.leq (fp.sub c_currentRoundingMode |v_ULTIMATE.start_main_~yc~0#1_BEFORE_CALL_6| |c_y_#res|) .cse0) (not (fp.geq .cse1 .cse2)) (not (fp.leq .cse1 .cse0))))) (forall ((|v_ULTIMATE.start_main_~yc~0#1_BEFORE_CALL_6| (_ FloatingPoint 11 53))) (let ((.cse4 (fp.sub c_currentRoundingMode |v_ULTIMATE.start_main_~yc~0#1_BEFORE_CALL_6| .cse3))) (or (fp.geq (fp.sub c_currentRoundingMode |v_ULTIMATE.start_main_~yc~0#1_BEFORE_CALL_6| |c_y_#res|) .cse2) (not (fp.geq .cse4 .cse2)) (not (fp.leq .cse4 .cse0)))))))) is different from true [2024-11-27 23:35:46,439 WARN L286 SmtUtils]: Spent 8.11s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 23:35:53,878 WARN L286 SmtUtils]: Spent 7.44s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 23:36:01,946 WARN L286 SmtUtils]: Spent 8.07s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 23:36:09,020 WARN L286 SmtUtils]: Spent 7.07s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 23:36:17,100 WARN L286 SmtUtils]: Spent 8.08s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 23:36:24,611 WARN L286 SmtUtils]: Spent 7.51s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 23:36:32,782 WARN L286 SmtUtils]: Spent 8.16s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 23:36:40,902 WARN L286 SmtUtils]: Spent 8.12s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 23:36:48,992 WARN L286 SmtUtils]: Spent 8.09s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 23:36:57,102 WARN L286 SmtUtils]: Spent 8.11s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 23:37:05,189 WARN L286 SmtUtils]: Spent 8.09s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 23:37:13,306 WARN L286 SmtUtils]: Spent 8.12s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 23:37:17,391 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (let ((.cse0 (fp.add c_currentRoundingMode c_~yn~0 c_~ui~0)) (.cse3 (fp.neg .cse1)) (.cse4 (fp.add c_currentRoundingMode |c_old(~yn~0)| c_~ui~0))) (and (forall ((|v_ULTIMATE.start_main_~yc~0#1_BEFORE_CALL_6| (_ FloatingPoint 11 53))) (let ((.cse2 (fp.sub c_currentRoundingMode |v_ULTIMATE.start_main_~yc~0#1_BEFORE_CALL_6| .cse4))) (or (fp.leq (fp.sub c_currentRoundingMode |v_ULTIMATE.start_main_~yc~0#1_BEFORE_CALL_6| .cse0) .cse1) (not (fp.geq .cse2 .cse3)) (not (fp.leq .cse2 .cse1))))) (forall ((|v_ULTIMATE.start_main_~yc~0#1_BEFORE_CALL_6| (_ FloatingPoint 11 53))) (let ((.cse5 (fp.sub c_currentRoundingMode |v_ULTIMATE.start_main_~yc~0#1_BEFORE_CALL_6| .cse4))) (or (fp.geq (fp.sub c_currentRoundingMode |v_ULTIMATE.start_main_~yc~0#1_BEFORE_CALL_6| .cse0) .cse3) (not (fp.geq .cse5 .cse3)) (not (fp.leq .cse5 .cse1)))))))) is different from true [2024-11-27 23:37:38,806 WARN L286 SmtUtils]: Spent 5.06s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 23:37:48,458 WARN L286 SmtUtils]: Spent 9.63s on a formula simplification that was a NOOP. DAG size: 25 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 23:37:58,031 WARN L286 SmtUtils]: Spent 9.57s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 23:38:02,478 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~yc~0#1| (fp.add c_currentRoundingMode c_~yn~0 (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~K~0#1| (let ((.cse2 (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~yc~0#1| |c_ULTIMATE.start_main_#t~ret5#1|))) (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode .cse2 (fp.div c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.add c_currentRoundingMode |c_ULTIMATE.start_main_~sumej~0#1| .cse2) |c_ULTIMATE.start_main_~T~0#1|) |c_ULTIMATE.start_main_~taui~0#1|)) (fp.mul c_currentRoundingMode (fp.div c_currentRoundingMode |c_ULTIMATE.start_main_~taud~0#1| |c_ULTIMATE.start_main_~T~0#1|) (fp.sub c_currentRoundingMode .cse2 |c_ULTIMATE.start_main_~epi~0#1|)))))))) (.cse1 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (and (fp.geq .cse0 (fp.neg .cse1)) (fp.leq .cse0 .cse1))) is different from false [2024-11-27 23:38:06,926 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~yc~0#1| (fp.add c_currentRoundingMode c_~yn~0 (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~K~0#1| (let ((.cse2 (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~yc~0#1| |c_ULTIMATE.start_main_#t~ret5#1|))) (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode .cse2 (fp.div c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.add c_currentRoundingMode |c_ULTIMATE.start_main_~sumej~0#1| .cse2) |c_ULTIMATE.start_main_~T~0#1|) |c_ULTIMATE.start_main_~taui~0#1|)) (fp.mul c_currentRoundingMode (fp.div c_currentRoundingMode |c_ULTIMATE.start_main_~taud~0#1| |c_ULTIMATE.start_main_~T~0#1|) (fp.sub c_currentRoundingMode .cse2 |c_ULTIMATE.start_main_~epi~0#1|)))))))) (.cse1 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (and (fp.geq .cse0 (fp.neg .cse1)) (fp.leq .cse0 .cse1))) is different from true [2024-11-27 23:38:24,122 WARN L286 SmtUtils]: Spent 9.72s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 23:38:33,802 WARN L286 SmtUtils]: Spent 9.68s on a formula simplification that was a NOOP. DAG size: 27 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 23:38:38,270 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~yc~0#1| (let ((.cse2 (fp.add c_currentRoundingMode c_~yn~0 c_~ui~0))) (fp.add c_currentRoundingMode .cse2 (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~K~0#1| (let ((.cse3 (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~yc~0#1| .cse2))) (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode .cse3 (fp.div c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.add c_currentRoundingMode |c_ULTIMATE.start_main_~sumej~0#1| .cse3) |c_ULTIMATE.start_main_~T~0#1|) |c_ULTIMATE.start_main_~taui~0#1|)) (fp.mul c_currentRoundingMode (fp.div c_currentRoundingMode |c_ULTIMATE.start_main_~taud~0#1| |c_ULTIMATE.start_main_~T~0#1|) (fp.sub c_currentRoundingMode .cse3 |c_ULTIMATE.start_main_~epi~0#1|))))))))) (.cse1 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (and (fp.leq .cse0 .cse1) (fp.geq .cse0 (fp.neg .cse1)))) is different from false [2024-11-27 23:38:42,706 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~yc~0#1| (let ((.cse2 (fp.add c_currentRoundingMode c_~yn~0 c_~ui~0))) (fp.add c_currentRoundingMode .cse2 (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~K~0#1| (let ((.cse3 (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~yc~0#1| .cse2))) (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode .cse3 (fp.div c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.add c_currentRoundingMode |c_ULTIMATE.start_main_~sumej~0#1| .cse3) |c_ULTIMATE.start_main_~T~0#1|) |c_ULTIMATE.start_main_~taui~0#1|)) (fp.mul c_currentRoundingMode (fp.div c_currentRoundingMode |c_ULTIMATE.start_main_~taud~0#1| |c_ULTIMATE.start_main_~T~0#1|) (fp.sub c_currentRoundingMode .cse3 |c_ULTIMATE.start_main_~epi~0#1|))))))))) (.cse1 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (and (fp.leq .cse0 .cse1) (fp.geq .cse0 (fp.neg .cse1)))) is different from true [2024-11-27 23:38:55,343 WARN L286 SmtUtils]: Spent 12.62s on a formula simplification that was a NOOP. DAG size: 27 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 23:39:05,831 WARN L286 SmtUtils]: Spent 10.49s on a formula simplification that was a NOOP. DAG size: 25 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 23:39:16,792 WARN L286 SmtUtils]: Spent 10.96s on a formula simplification that was a NOOP. DAG size: 28 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 23:39:27,224 WARN L286 SmtUtils]: Spent 10.43s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 23:39:38,172 WARN L286 SmtUtils]: Spent 10.95s on a formula simplification that was a NOOP. DAG size: 27 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 23:39:49,088 WARN L286 SmtUtils]: Spent 10.92s on a formula simplification that was a NOOP. DAG size: 28 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 23:39:52,242 WARN L249 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5596fb52-fc7c-4ed6-bb2e-ce31cedb9d69/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) stderr output: (error "out of memory") [2024-11-27 23:39:52,242 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:39:52,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [363480807] [2024-11-27 23:39:52,243 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2024-11-27 23:39:52,244 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5596fb52-fc7c-4ed6-bb2e-ce31cedb9d69/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 101 [2024-11-27 23:39:52,314 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5596fb52-fc7c-4ed6-bb2e-ce31cedb9d69/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-27 23:39:52,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5596fb52-fc7c-4ed6-bb2e-ce31cedb9d69/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-27 23:39:52,445 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5596fb52-fc7c-4ed6-bb2e-ce31cedb9d69/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:281) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:85) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:864) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:786) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:374) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:323) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:555) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:416) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:395) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:267) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:325) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:181) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:210) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:317) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:428) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:314) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:275) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:132) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 45 more [2024-11-27 23:39:52,451 INFO L158 Benchmark]: Toolchain (without parser) took 671811.37ms. Allocated memory is still 83.9MB. Free memory was 59.4MB in the beginning and 47.6MB in the end (delta: 11.8MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2024-11-27 23:39:52,452 INFO L158 Benchmark]: CDTParser took 0.47ms. Allocated memory is still 83.9MB. Free memory was 63.4MB in the beginning and 63.3MB in the end (delta: 16.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:39:52,453 INFO L158 Benchmark]: CACSL2BoogieTranslator took 245.30ms. Allocated memory is still 83.9MB. Free memory was 59.3MB in the beginning and 47.6MB in the end (delta: 11.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 23:39:52,453 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.80ms. Allocated memory is still 83.9MB. Free memory was 47.6MB in the beginning and 46.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:39:52,453 INFO L158 Benchmark]: Boogie Preprocessor took 37.95ms. Allocated memory is still 83.9MB. Free memory was 46.3MB in the beginning and 44.8MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 23:39:52,454 INFO L158 Benchmark]: RCFGBuilder took 5823.01ms. Allocated memory is still 83.9MB. Free memory was 44.8MB in the beginning and 34.7MB in the end (delta: 10.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 23:39:52,454 INFO L158 Benchmark]: TraceAbstraction took 665665.25ms. Allocated memory is still 83.9MB. Free memory was 34.1MB in the beginning and 47.6MB in the end (delta: -13.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:39:52,456 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47ms. Allocated memory is still 83.9MB. Free memory was 63.4MB in the beginning and 63.3MB in the end (delta: 16.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 245.30ms. Allocated memory is still 83.9MB. Free memory was 59.3MB in the beginning and 47.6MB in the end (delta: 11.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.80ms. Allocated memory is still 83.9MB. Free memory was 47.6MB in the beginning and 46.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 37.95ms. Allocated memory is still 83.9MB. Free memory was 46.3MB in the beginning and 44.8MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 5823.01ms. Allocated memory is still 83.9MB. Free memory was 44.8MB in the beginning and 34.7MB in the end (delta: 10.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 665665.25ms. Allocated memory is still 83.9MB. Free memory was 34.1MB in the beginning and 47.6MB in the end (delta: -13.5MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5596fb52-fc7c-4ed6-bb2e-ce31cedb9d69/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5596fb52-fc7c-4ed6-bb2e-ce31cedb9d69/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5596fb52-fc7c-4ed6-bb2e-ce31cedb9d69/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory")