./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cdfpl/newton_3_2.i --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_c9ed137d-a770-42df-ba5a-5ff9b1912163/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ed137d-a770-42df-ba5a-5ff9b1912163/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_c9ed137d-a770-42df-ba5a-5ff9b1912163/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ed137d-a770-42df-ba5a-5ff9b1912163/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_3_2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ed137d-a770-42df-ba5a-5ff9b1912163/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_c9ed137d-a770-42df-ba5a-5ff9b1912163/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 c1d4d49264539a089c5128bd7fc98307efecaf11cb51350b8359b7fe239beab3 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:07:06,515 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:07:06,601 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ed137d-a770-42df-ba5a-5ff9b1912163/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 02:07:06,607 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:07:06,607 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:07:06,636 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:07:06,637 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:07:06,637 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:07:06,638 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:07:06,638 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:07:06,639 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:07:06,640 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:07:06,640 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:07:06,640 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:07:06,641 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:07:06,641 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:07:06,641 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:07:06,641 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:07:06,641 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:07:06,641 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:07:06,641 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:07:06,641 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:07:06,642 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:07:06,642 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:07:06,642 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:07:06,642 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:07:06,643 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:07:06,643 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:07:06,643 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:07:06,643 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:07:06,643 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:07:06,644 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:07:06,644 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:07:06,644 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:07:06,644 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:07:06,644 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:07:06,644 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:07:06,644 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:07:06,644 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:07:06,644 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:07:06,644 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:07:06,645 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:07:06,645 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:07:06,645 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:07:06,645 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:07:06,645 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:07:06,645 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:07:06,645 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:07:06,645 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_c9ed137d-a770-42df-ba5a-5ff9b1912163/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 -> c1d4d49264539a089c5128bd7fc98307efecaf11cb51350b8359b7fe239beab3 [2024-11-28 02:07:06,971 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:07:06,982 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:07:06,985 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:07:06,987 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:07:06,987 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:07:06,990 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ed137d-a770-42df-ba5a-5ff9b1912163/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/floats-cdfpl/newton_3_2.i [2024-11-28 02:07:10,201 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ed137d-a770-42df-ba5a-5ff9b1912163/bin/uautomizer-verify-aQ6SnzHsRB/data/16879db0c/5a36122bd3ac4b218acd37dd7c954dbb/FLAGeedb63909 [2024-11-28 02:07:10,458 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:07:10,459 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ed137d-a770-42df-ba5a-5ff9b1912163/sv-benchmarks/c/floats-cdfpl/newton_3_2.i [2024-11-28 02:07:10,466 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ed137d-a770-42df-ba5a-5ff9b1912163/bin/uautomizer-verify-aQ6SnzHsRB/data/16879db0c/5a36122bd3ac4b218acd37dd7c954dbb/FLAGeedb63909 [2024-11-28 02:07:10,481 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ed137d-a770-42df-ba5a-5ff9b1912163/bin/uautomizer-verify-aQ6SnzHsRB/data/16879db0c/5a36122bd3ac4b218acd37dd7c954dbb [2024-11-28 02:07:10,484 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:07:10,486 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:07:10,487 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:07:10,487 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:07:10,492 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:07:10,494 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:07:10" (1/1) ... [2024-11-28 02:07:10,495 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fdb7a1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:10, skipping insertion in model container [2024-11-28 02:07:10,495 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:07:10" (1/1) ... [2024-11-28 02:07:10,512 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:07:10,727 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_c9ed137d-a770-42df-ba5a-5ff9b1912163/sv-benchmarks/c/floats-cdfpl/newton_3_2.i[1764,1777] [2024-11-28 02:07:10,733 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:07:10,750 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:07:10,779 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_c9ed137d-a770-42df-ba5a-5ff9b1912163/sv-benchmarks/c/floats-cdfpl/newton_3_2.i[1764,1777] [2024-11-28 02:07:10,783 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:07:10,804 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:07:10,804 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:10 WrapperNode [2024-11-28 02:07:10,805 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:07:10,807 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:07:10,807 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:07:10,807 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:07:10,816 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:10" (1/1) ... [2024-11-28 02:07:10,827 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:10" (1/1) ... [2024-11-28 02:07:10,852 INFO L138 Inliner]: procedures = 17, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 34 [2024-11-28 02:07:10,852 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:07:10,853 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:07:10,855 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:07:10,855 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:07:10,865 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:10" (1/1) ... [2024-11-28 02:07:10,866 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:10" (1/1) ... [2024-11-28 02:07:10,871 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:10" (1/1) ... [2024-11-28 02:07:10,897 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]. [2024-11-28 02:07:10,897 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:10" (1/1) ... [2024-11-28 02:07:10,897 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:10" (1/1) ... [2024-11-28 02:07:10,904 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:10" (1/1) ... [2024-11-28 02:07:10,908 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:10" (1/1) ... [2024-11-28 02:07:10,911 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:10" (1/1) ... [2024-11-28 02:07:10,914 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:10" (1/1) ... [2024-11-28 02:07:10,915 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:10" (1/1) ... [2024-11-28 02:07:10,916 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:07:10,917 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:07:10,917 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:07:10,917 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:07:10,923 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:10" (1/1) ... [2024-11-28 02:07:10,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:07:10,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ed137d-a770-42df-ba5a-5ff9b1912163/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:07:10,971 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ed137d-a770-42df-ba5a-5ff9b1912163/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:07:10,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ed137d-a770-42df-ba5a-5ff9b1912163/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:07:11,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:07:11,010 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-11-28 02:07:11,010 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-11-28 02:07:11,011 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2024-11-28 02:07:11,011 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2024-11-28 02:07:11,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:07:11,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:07:11,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:07:11,097 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:07:11,101 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:07:11,270 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-28 02:07:11,270 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:07:11,283 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:07:11,284 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 02:07:11,285 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:07:11 BoogieIcfgContainer [2024-11-28 02:07:11,285 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:07:11,287 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:07:11,288 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:07:11,295 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:07:11,295 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:07:10" (1/3) ... [2024-11-28 02:07:11,296 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@329a5259 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:07:11, skipping insertion in model container [2024-11-28 02:07:11,296 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:10" (2/3) ... [2024-11-28 02:07:11,297 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@329a5259 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:07:11, skipping insertion in model container [2024-11-28 02:07:11,298 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:07:11" (3/3) ... [2024-11-28 02:07:11,300 INFO L128 eAbstractionObserver]: Analyzing ICFG newton_3_2.i [2024-11-28 02:07:11,322 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:07:11,325 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG newton_3_2.i that has 3 procedures, 26 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-28 02:07:11,408 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:07:11,426 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;@790f6d26, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:07:11,427 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 02:07:11,432 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 02:07:11,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-28 02:07:11,442 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:11,443 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:11,444 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:11,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:11,450 INFO L85 PathProgramCache]: Analyzing trace with hash 694828395, now seen corresponding path program 1 times [2024-11-28 02:07:11,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:11,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925977350] [2024-11-28 02:07:11,461 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:11,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:11,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:11,651 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-28 02:07:11,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:11,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925977350] [2024-11-28 02:07:11,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925977350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:11,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:11,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:07:11,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272727445] [2024-11-28 02:07:11,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:11,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 02:07:11,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:11,697 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:07:11,697 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:07:11,700 INFO L87 Difference]: Start difference. First operand has 26 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-28 02:07:11,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:07:11,720 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2024-11-28 02:07:11,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:07:11,722 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 33 [2024-11-28 02:07:11,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:07:11,730 INFO L225 Difference]: With dead ends: 49 [2024-11-28 02:07:11,731 INFO L226 Difference]: Without dead ends: 22 [2024-11-28 02:07:11,736 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:07:11,743 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:07:11,744 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:07:11,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2024-11-28 02:07:11,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2024-11-28 02:07:11,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 13 states have (on average 1.0) internal successors, (13), 13 states have internal predecessors, (13), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 02:07:11,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2024-11-28 02:07:11,792 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 33 [2024-11-28 02:07:11,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:07:11,793 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2024-11-28 02:07:11,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-28 02:07:11,793 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2024-11-28 02:07:11,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-28 02:07:11,796 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:11,797 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:11,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 02:07:11,798 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:11,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:11,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1396428269, now seen corresponding path program 1 times [2024-11-28 02:07:11,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:11,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420601567] [2024-11-28 02:07:11,800 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:11,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:11,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:07:11,829 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:07:11,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:07:11,879 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 02:07:11,880 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 02:07:11,881 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 02:07:11,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 02:07:11,886 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-28 02:07:11,909 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 02:07:11,915 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:07:11 BoogieIcfgContainer [2024-11-28 02:07:11,916 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 02:07:11,917 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 02:07:11,917 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 02:07:11,918 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 02:07:11,918 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:07:11" (3/4) ... [2024-11-28 02:07:11,921 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-28 02:07:11,922 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 02:07:11,924 INFO L158 Benchmark]: Toolchain (without parser) took 1437.57ms. Allocated memory is still 117.4MB. Free memory was 91.3MB in the beginning and 44.6MB in the end (delta: 46.7MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2024-11-28 02:07:11,924 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 83.9MB. Free memory is still 39.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:07:11,925 INFO L158 Benchmark]: CACSL2BoogieTranslator took 319.02ms. Allocated memory is still 117.4MB. Free memory was 91.3MB in the beginning and 80.1MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:07:11,925 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.41ms. Allocated memory is still 117.4MB. Free memory was 80.1MB in the beginning and 78.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:07:11,926 INFO L158 Benchmark]: Boogie Preprocessor took 63.84ms. Allocated memory is still 117.4MB. Free memory was 78.9MB in the beginning and 77.4MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:07:11,927 INFO L158 Benchmark]: RCFGBuilder took 367.61ms. Allocated memory is still 117.4MB. Free memory was 77.4MB in the beginning and 67.0MB in the end (delta: 10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:07:11,928 INFO L158 Benchmark]: TraceAbstraction took 628.29ms. Allocated memory is still 117.4MB. Free memory was 66.3MB in the beginning and 44.9MB in the end (delta: 21.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 02:07:11,928 INFO L158 Benchmark]: Witness Printer took 5.09ms. Allocated memory is still 117.4MB. Free memory is still 44.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:07:11,930 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 83.9MB. Free memory is still 39.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 319.02ms. Allocated memory is still 117.4MB. Free memory was 91.3MB in the beginning and 80.1MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.41ms. Allocated memory is still 117.4MB. Free memory was 80.1MB in the beginning and 78.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 63.84ms. Allocated memory is still 117.4MB. Free memory was 78.9MB in the beginning and 77.4MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 367.61ms. Allocated memory is still 117.4MB. Free memory was 77.4MB in the beginning and 67.0MB in the end (delta: 10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 628.29ms. Allocated memory is still 117.4MB. Free memory was 66.3MB in the beginning and 44.9MB in the end (delta: 21.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 5.09ms. Allocated memory is still 117.4MB. Free memory is still 44.6MB. 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: 51]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 40, overapproximation of someBinaryDOUBLEComparisonOperation at line 50, overapproximation of someBinaryArithmeticFLOAToperation at line 42, overapproximation of someBinaryArithmeticFLOAToperation at line 46, overapproximation of someBinaryArithmeticFLOAToperation at line 34, overapproximation of someBinaryArithmeticFLOAToperation at line 29, overapproximation of someBinaryArithmeticFLOAToperation at line 44. Possible FailurePath: [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN > -0.4f && IN < 0.4f) [L24] COND FALSE !(!cond) [L40] RET assume_abort_if_not(IN > -0.4f && IN < 0.4f) [L42] CALL, EXPR f(IN) VAL [\old(x)=53] [L29] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=53] [L42] RET, EXPR f(IN) VAL [IN=53] [L42] CALL, EXPR fp(IN) VAL [\old(x)=53] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=53] [L42] RET, EXPR fp(IN) VAL [IN=53] [L42] float x = IN - f(IN)/fp(IN); [L44] CALL, EXPR f(x) VAL [\old(x)=55] [L29] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=55] [L44] RET, EXPR f(x) VAL [IN=53, x=55] [L44] CALL, EXPR fp(x) VAL [\old(x)=55] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=55] [L44] RET, EXPR fp(x) VAL [IN=53, x=55] [L44] x = x - f(x)/fp(x) [L46] CALL, EXPR f(x) VAL [\old(x)=54] [L29] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=54] [L46] RET, EXPR f(x) VAL [IN=53, x=54] [L46] CALL, EXPR fp(x) VAL [\old(x)=54] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=54] [L46] RET, EXPR fp(x) VAL [IN=53, x=54] [L46] x = x - f(x)/fp(x) [L50] COND TRUE !(x < 0.1) VAL [IN=53] [L51] reach_error() VAL [IN=53] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 29 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 29 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 32 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 18/18 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 [2024-11-28 02:07:11,956 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ed137d-a770-42df-ba5a-5ff9b1912163/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_c9ed137d-a770-42df-ba5a-5ff9b1912163/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ed137d-a770-42df-ba5a-5ff9b1912163/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_c9ed137d-a770-42df-ba5a-5ff9b1912163/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ed137d-a770-42df-ba5a-5ff9b1912163/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_3_2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ed137d-a770-42df-ba5a-5ff9b1912163/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_c9ed137d-a770-42df-ba5a-5ff9b1912163/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 c1d4d49264539a089c5128bd7fc98307efecaf11cb51350b8359b7fe239beab3 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:07:14,906 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:07:15,033 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ed137d-a770-42df-ba5a-5ff9b1912163/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-28 02:07:15,047 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:07:15,048 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:07:15,100 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:07:15,103 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:07:15,103 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:07:15,104 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:07:15,104 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:07:15,105 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:07:15,105 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:07:15,106 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:07:15,106 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:07:15,107 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:07:15,107 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:07:15,107 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:07:15,107 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:07:15,107 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:07:15,107 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:07:15,107 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:07:15,108 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:07:15,108 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:07:15,108 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 02:07:15,108 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 02:07:15,108 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 02:07:15,108 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:07:15,108 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:07:15,108 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:07:15,108 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:07:15,109 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:07:15,109 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:07:15,109 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:07:15,109 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:07:15,109 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:07:15,109 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:07:15,110 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:07:15,110 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:07:15,110 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:07:15,110 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:07:15,110 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:07:15,110 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:07:15,110 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:07:15,110 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:07:15,110 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 02:07:15,111 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 02:07:15,111 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:07:15,111 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:07:15,111 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:07:15,111 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:07:15,111 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_c9ed137d-a770-42df-ba5a-5ff9b1912163/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 -> c1d4d49264539a089c5128bd7fc98307efecaf11cb51350b8359b7fe239beab3 [2024-11-28 02:07:15,461 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:07:15,471 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:07:15,475 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:07:15,478 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:07:15,479 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:07:15,480 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ed137d-a770-42df-ba5a-5ff9b1912163/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/floats-cdfpl/newton_3_2.i [2024-11-28 02:07:18,535 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ed137d-a770-42df-ba5a-5ff9b1912163/bin/uautomizer-verify-aQ6SnzHsRB/data/152fadfb5/7686eb27f5c24b6c819bc8f0715e8a45/FLAG10cc566d9 [2024-11-28 02:07:18,820 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:07:18,824 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ed137d-a770-42df-ba5a-5ff9b1912163/sv-benchmarks/c/floats-cdfpl/newton_3_2.i [2024-11-28 02:07:18,836 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ed137d-a770-42df-ba5a-5ff9b1912163/bin/uautomizer-verify-aQ6SnzHsRB/data/152fadfb5/7686eb27f5c24b6c819bc8f0715e8a45/FLAG10cc566d9 [2024-11-28 02:07:18,853 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ed137d-a770-42df-ba5a-5ff9b1912163/bin/uautomizer-verify-aQ6SnzHsRB/data/152fadfb5/7686eb27f5c24b6c819bc8f0715e8a45 [2024-11-28 02:07:18,855 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:07:18,857 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:07:18,858 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:07:18,858 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:07:18,863 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:07:18,864 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:07:18" (1/1) ... [2024-11-28 02:07:18,865 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29e8b77a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:18, skipping insertion in model container [2024-11-28 02:07:18,865 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:07:18" (1/1) ... [2024-11-28 02:07:18,889 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:07:19,099 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_c9ed137d-a770-42df-ba5a-5ff9b1912163/sv-benchmarks/c/floats-cdfpl/newton_3_2.i[1764,1777] [2024-11-28 02:07:19,103 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:07:19,124 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:07:19,154 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_c9ed137d-a770-42df-ba5a-5ff9b1912163/sv-benchmarks/c/floats-cdfpl/newton_3_2.i[1764,1777] [2024-11-28 02:07:19,156 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:07:19,178 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:07:19,179 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:19 WrapperNode [2024-11-28 02:07:19,179 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:07:19,180 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:07:19,181 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:07:19,182 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:07:19,193 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:19" (1/1) ... [2024-11-28 02:07:19,206 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:19" (1/1) ... [2024-11-28 02:07:19,229 INFO L138 Inliner]: procedures = 18, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2024-11-28 02:07:19,230 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:07:19,230 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:07:19,230 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:07:19,231 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:07:19,241 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:19" (1/1) ... [2024-11-28 02:07:19,241 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:19" (1/1) ... [2024-11-28 02:07:19,245 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:19" (1/1) ... [2024-11-28 02:07:19,269 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]. [2024-11-28 02:07:19,270 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:19" (1/1) ... [2024-11-28 02:07:19,270 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:19" (1/1) ... [2024-11-28 02:07:19,281 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:19" (1/1) ... [2024-11-28 02:07:19,286 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:19" (1/1) ... [2024-11-28 02:07:19,288 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:19" (1/1) ... [2024-11-28 02:07:19,290 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:19" (1/1) ... [2024-11-28 02:07:19,293 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:19" (1/1) ... [2024-11-28 02:07:19,296 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:07:19,301 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:07:19,301 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:07:19,301 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:07:19,302 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:19" (1/1) ... [2024-11-28 02:07:19,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:07:19,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ed137d-a770-42df-ba5a-5ff9b1912163/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:07:19,338 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ed137d-a770-42df-ba5a-5ff9b1912163/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:07:19,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ed137d-a770-42df-ba5a-5ff9b1912163/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:07:19,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:07:19,377 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-11-28 02:07:19,377 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-11-28 02:07:19,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 02:07:19,377 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2024-11-28 02:07:19,377 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2024-11-28 02:07:19,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:07:19,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:07:19,458 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:07:19,461 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:07:35,452 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-11-28 02:07:35,452 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:07:35,463 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:07:35,463 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 02:07:35,464 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:07:35 BoogieIcfgContainer [2024-11-28 02:07:35,464 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:07:35,467 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:07:35,467 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:07:35,472 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:07:35,472 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:07:18" (1/3) ... [2024-11-28 02:07:35,473 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@748381fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:07:35, skipping insertion in model container [2024-11-28 02:07:35,473 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:19" (2/3) ... [2024-11-28 02:07:35,474 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@748381fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:07:35, skipping insertion in model container [2024-11-28 02:07:35,474 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:07:35" (3/3) ... [2024-11-28 02:07:35,476 INFO L128 eAbstractionObserver]: Analyzing ICFG newton_3_2.i [2024-11-28 02:07:35,494 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:07:35,497 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG newton_3_2.i that has 3 procedures, 26 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-28 02:07:35,569 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:07:35,583 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;@7dc4cc62, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:07:35,583 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 02:07:35,588 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 02:07:35,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-28 02:07:35,598 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:35,599 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:35,599 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:35,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:35,607 INFO L85 PathProgramCache]: Analyzing trace with hash 694828395, now seen corresponding path program 1 times [2024-11-28 02:07:35,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:07:35,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [104447404] [2024-11-28 02:07:35,624 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:35,625 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 [2024-11-28 02:07:35,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ed137d-a770-42df-ba5a-5ff9b1912163/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:07:35,628 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ed137d-a770-42df-ba5a-5ff9b1912163/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) [2024-11-28 02:07:35,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ed137d-a770-42df-ba5a-5ff9b1912163/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 [2024-11-28 02:07:39,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:39,464 INFO L256 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 02:07:39,471 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:07:39,505 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-28 02:07:39,506 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:07:39,507 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:07:39,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [104447404] [2024-11-28 02:07:39,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [104447404] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:39,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:39,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:07:39,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144857331] [2024-11-28 02:07:39,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:39,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 02:07:39,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:07:39,543 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:07:39,544 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:07:39,547 INFO L87 Difference]: Start difference. First operand has 26 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-28 02:07:39,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:07:39,572 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2024-11-28 02:07:39,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:07:39,575 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 33 [2024-11-28 02:07:39,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:07:39,583 INFO L225 Difference]: With dead ends: 49 [2024-11-28 02:07:39,584 INFO L226 Difference]: Without dead ends: 22 [2024-11-28 02:07:39,588 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:07:39,595 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:07:39,596 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:07:39,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2024-11-28 02:07:39,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2024-11-28 02:07:39,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 13 states have (on average 1.0) internal successors, (13), 13 states have internal predecessors, (13), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 02:07:39,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2024-11-28 02:07:39,647 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 33 [2024-11-28 02:07:39,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:07:39,648 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2024-11-28 02:07:39,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-28 02:07:39,648 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2024-11-28 02:07:39,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-28 02:07:39,652 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:39,652 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:39,712 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ed137d-a770-42df-ba5a-5ff9b1912163/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 [2024-11-28 02:07:39,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ed137d-a770-42df-ba5a-5ff9b1912163/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 [2024-11-28 02:07:39,853 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:39,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:39,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1396428269, now seen corresponding path program 1 times [2024-11-28 02:07:39,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:07:39,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [837819520] [2024-11-28 02:07:39,855 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:39,855 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 [2024-11-28 02:07:39,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ed137d-a770-42df-ba5a-5ff9b1912163/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:07:39,858 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ed137d-a770-42df-ba5a-5ff9b1912163/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) [2024-11-28 02:07:39,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9ed137d-a770-42df-ba5a-5ff9b1912163/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