./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-18.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_b7c4e97d-1dac-40ee-b5cf-9710262468d5/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c4e97d-1dac-40ee-b5cf-9710262468d5/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_b7c4e97d-1dac-40ee-b5cf-9710262468d5/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c4e97d-1dac-40ee-b5cf-9710262468d5/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-18.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c4e97d-1dac-40ee-b5cf-9710262468d5/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_b7c4e97d-1dac-40ee-b5cf-9710262468d5/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 20590a3b952f77870c005ea22da4ee2c3e5fa42d319fcea291376108e5b76f76 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:53:42,924 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:53:43,001 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c4e97d-1dac-40ee-b5cf-9710262468d5/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 02:53:43,013 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:53:43,013 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:53:43,064 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:53:43,065 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:53:43,066 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:53:43,067 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:53:43,067 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:53:43,068 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:53:43,068 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:53:43,069 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:53:43,069 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:53:43,069 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:53:43,069 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:53:43,069 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:53:43,069 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:53:43,070 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:53:43,070 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:53:43,070 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:53:43,071 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:53:43,071 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:53:43,071 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:53:43,071 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:53:43,071 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:53:43,071 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:53:43,071 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:53:43,072 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:53:43,072 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:53:43,072 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:53:43,072 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:53:43,072 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:53:43,072 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:53:43,073 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:53:43,074 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:53:43,074 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:53:43,074 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:53:43,074 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:53:43,074 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:53:43,074 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:53:43,075 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:53:43,075 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:53:43,075 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:53:43,075 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:53:43,075 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:53:43,075 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:53:43,075 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:53:43,075 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_b7c4e97d-1dac-40ee-b5cf-9710262468d5/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 -> 20590a3b952f77870c005ea22da4ee2c3e5fa42d319fcea291376108e5b76f76 [2024-11-28 02:53:43,475 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:53:43,490 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:53:43,495 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:53:43,496 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:53:43,497 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:53:43,498 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c4e97d-1dac-40ee-b5cf-9710262468d5/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-18.i [2024-11-28 02:53:46,667 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c4e97d-1dac-40ee-b5cf-9710262468d5/bin/uautomizer-verify-aQ6SnzHsRB/data/71a2890d7/e500ca95f4f9420bbc7339816dc4295b/FLAG130911154 [2024-11-28 02:53:46,992 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:53:46,993 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c4e97d-1dac-40ee-b5cf-9710262468d5/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-18.i [2024-11-28 02:53:47,006 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c4e97d-1dac-40ee-b5cf-9710262468d5/bin/uautomizer-verify-aQ6SnzHsRB/data/71a2890d7/e500ca95f4f9420bbc7339816dc4295b/FLAG130911154 [2024-11-28 02:53:47,033 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c4e97d-1dac-40ee-b5cf-9710262468d5/bin/uautomizer-verify-aQ6SnzHsRB/data/71a2890d7/e500ca95f4f9420bbc7339816dc4295b [2024-11-28 02:53:47,036 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:53:47,038 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:53:47,040 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:53:47,040 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:53:47,046 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:53:47,047 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:53:47" (1/1) ... [2024-11-28 02:53:47,051 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7490d79a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:47, skipping insertion in model container [2024-11-28 02:53:47,051 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:53:47" (1/1) ... [2024-11-28 02:53:47,075 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:53:47,287 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_b7c4e97d-1dac-40ee-b5cf-9710262468d5/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-18.i[917,930] [2024-11-28 02:53:47,373 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:53:47,389 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:53:47,403 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_b7c4e97d-1dac-40ee-b5cf-9710262468d5/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-18.i[917,930] [2024-11-28 02:53:47,454 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:53:47,480 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:53:47,481 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:47 WrapperNode [2024-11-28 02:53:47,481 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:53:47,482 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:53:47,482 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:53:47,482 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:53:47,496 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:47" (1/1) ... [2024-11-28 02:53:47,510 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:47" (1/1) ... [2024-11-28 02:53:47,557 INFO L138 Inliner]: procedures = 26, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 142 [2024-11-28 02:53:47,558 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:53:47,558 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:53:47,558 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:53:47,559 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:53:47,570 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:47" (1/1) ... [2024-11-28 02:53:47,571 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:47" (1/1) ... [2024-11-28 02:53:47,573 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:47" (1/1) ... [2024-11-28 02:53:47,590 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 02:53:47,590 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:47" (1/1) ... [2024-11-28 02:53:47,590 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:47" (1/1) ... [2024-11-28 02:53:47,599 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:47" (1/1) ... [2024-11-28 02:53:47,601 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:47" (1/1) ... [2024-11-28 02:53:47,605 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:47" (1/1) ... [2024-11-28 02:53:47,608 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:47" (1/1) ... [2024-11-28 02:53:47,609 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:47" (1/1) ... [2024-11-28 02:53:47,613 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:53:47,614 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:53:47,614 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:53:47,614 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:53:47,615 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:47" (1/1) ... [2024-11-28 02:53:47,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:53:47,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c4e97d-1dac-40ee-b5cf-9710262468d5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:53:47,674 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c4e97d-1dac-40ee-b5cf-9710262468d5/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:53:47,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c4e97d-1dac-40ee-b5cf-9710262468d5/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:53:47,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:53:47,714 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 02:53:47,714 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 02:53:47,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:53:47,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:53:47,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:53:47,823 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:53:47,825 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:53:48,481 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2024-11-28 02:53:48,481 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:53:48,504 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:53:48,504 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 02:53:48,505 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:53:48 BoogieIcfgContainer [2024-11-28 02:53:48,505 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:53:48,510 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:53:48,510 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:53:48,521 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:53:48,521 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:53:47" (1/3) ... [2024-11-28 02:53:48,523 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cd7ae9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:53:48, skipping insertion in model container [2024-11-28 02:53:48,524 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:47" (2/3) ... [2024-11-28 02:53:48,526 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cd7ae9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:53:48, skipping insertion in model container [2024-11-28 02:53:48,526 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:53:48" (3/3) ... [2024-11-28 02:53:48,528 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-18.i [2024-11-28 02:53:48,551 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:53:48,555 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_floatingpointinfluence_has-floats_file-18.i that has 2 procedures, 64 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 02:53:48,639 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:53:48,662 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;@3bb1fc4c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:53:48,662 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 02:53:48,668 INFO L276 IsEmpty]: Start isEmpty. Operand has 64 states, 49 states have (on average 1.4489795918367347) internal successors, (71), 50 states have internal predecessors, (71), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 02:53:48,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-28 02:53:48,681 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:53:48,682 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:53:48,682 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:53:48,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:53:48,691 INFO L85 PathProgramCache]: Analyzing trace with hash -514369375, now seen corresponding path program 1 times [2024-11-28 02:53:48,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:53:48,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551833968] [2024-11-28 02:53:48,701 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:53:48,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:53:48,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:53:49,074 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2024-11-28 02:53:49,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:53:49,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551833968] [2024-11-28 02:53:49,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551833968] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:53:49,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [121915994] [2024-11-28 02:53:49,076 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:53:49,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:53:49,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c4e97d-1dac-40ee-b5cf-9710262468d5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:53:49,082 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c4e97d-1dac-40ee-b5cf-9710262468d5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:53:49,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c4e97d-1dac-40ee-b5cf-9710262468d5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:53:49,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:53:49,283 INFO L256 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 02:53:49,291 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:53:49,336 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2024-11-28 02:53:49,336 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:53:49,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [121915994] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:53:49,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:53:49,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 02:53:49,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856278788] [2024-11-28 02:53:49,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:53:49,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 02:53:49,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:53:49,375 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:53:49,376 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:53:49,380 INFO L87 Difference]: Start difference. First operand has 64 states, 49 states have (on average 1.4489795918367347) internal successors, (71), 50 states have internal predecessors, (71), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-28 02:53:49,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:53:49,409 INFO L93 Difference]: Finished difference Result 121 states and 196 transitions. [2024-11-28 02:53:49,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:53:49,412 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 87 [2024-11-28 02:53:49,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:53:49,420 INFO L225 Difference]: With dead ends: 121 [2024-11-28 02:53:49,421 INFO L226 Difference]: Without dead ends: 60 [2024-11-28 02:53:49,425 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 88 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 02:53:49,432 INFO L435 NwaCegarLoop]: 88 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, 88 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 02:53:49,432 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:53:49,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2024-11-28 02:53:49,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2024-11-28 02:53:49,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 46 states have (on average 1.391304347826087) internal successors, (64), 46 states have internal predecessors, (64), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 02:53:49,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 88 transitions. [2024-11-28 02:53:49,478 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 88 transitions. Word has length 87 [2024-11-28 02:53:49,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:53:49,478 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 88 transitions. [2024-11-28 02:53:49,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-28 02:53:49,479 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 88 transitions. [2024-11-28 02:53:49,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-28 02:53:49,482 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:53:49,483 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:53:49,494 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c4e97d-1dac-40ee-b5cf-9710262468d5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 02:53:49,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c4e97d-1dac-40ee-b5cf-9710262468d5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:53:49,684 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:53:49,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:53:49,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1209871581, now seen corresponding path program 1 times [2024-11-28 02:53:49,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:53:49,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938913799] [2024-11-28 02:53:49,685 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:53:49,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:53:49,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:53:50,334 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-28 02:53:50,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:53:50,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938913799] [2024-11-28 02:53:50,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938913799] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:53:50,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:53:50,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:53:50,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729861651] [2024-11-28 02:53:50,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:53:50,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:53:50,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:53:50,341 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:53:50,343 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:53:50,343 INFO L87 Difference]: Start difference. First operand 60 states and 88 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-28 02:53:50,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:53:50,641 INFO L93 Difference]: Finished difference Result 174 states and 258 transitions. [2024-11-28 02:53:50,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:53:50,642 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 87 [2024-11-28 02:53:50,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:53:50,644 INFO L225 Difference]: With dead ends: 174 [2024-11-28 02:53:50,646 INFO L226 Difference]: Without dead ends: 117 [2024-11-28 02:53:50,647 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:53:50,648 INFO L435 NwaCegarLoop]: 84 mSDtfsCounter, 54 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:53:50,649 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 133 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:53:50,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-11-28 02:53:50,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 114. [2024-11-28 02:53:50,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 87 states have (on average 1.3563218390804597) internal successors, (118), 87 states have internal predecessors, (118), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-28 02:53:50,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 166 transitions. [2024-11-28 02:53:50,750 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 166 transitions. Word has length 87 [2024-11-28 02:53:50,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:53:50,750 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 166 transitions. [2024-11-28 02:53:50,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-28 02:53:50,751 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 166 transitions. [2024-11-28 02:53:50,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-28 02:53:50,756 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:53:50,757 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:53:50,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 02:53:50,757 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:53:50,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:53:50,758 INFO L85 PathProgramCache]: Analyzing trace with hash 466056458, now seen corresponding path program 1 times [2024-11-28 02:53:50,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:53:50,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197384276] [2024-11-28 02:53:50,758 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:53:50,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:53:50,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:53:51,657 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-28 02:53:51,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:53:51,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197384276] [2024-11-28 02:53:51,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197384276] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:53:51,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [404215070] [2024-11-28 02:53:51,660 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:53:51,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:53:51,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c4e97d-1dac-40ee-b5cf-9710262468d5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:53:51,664 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c4e97d-1dac-40ee-b5cf-9710262468d5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:53:51,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c4e97d-1dac-40ee-b5cf-9710262468d5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 02:53:51,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:53:51,824 INFO L256 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 02:53:51,827 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:53:52,635 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 11 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-28 02:53:52,636 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:53:53,282 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-28 02:53:53,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [404215070] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:53:53,282 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:53:53,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 22 [2024-11-28 02:53:53,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80649856] [2024-11-28 02:53:53,283 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:53:53,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-28 02:53:53,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:53:53,285 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-28 02:53:53,285 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=384, Unknown=0, NotChecked=0, Total=462 [2024-11-28 02:53:53,286 INFO L87 Difference]: Start difference. First operand 114 states and 166 transitions. Second operand has 22 states, 21 states have (on average 3.0952380952380953) internal successors, (65), 22 states have internal predecessors, (65), 4 states have call successors, (36), 3 states have call predecessors, (36), 5 states have return successors, (36), 2 states have call predecessors, (36), 4 states have call successors, (36) [2024-11-28 02:53:54,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:53:54,824 INFO L93 Difference]: Finished difference Result 366 states and 521 transitions. [2024-11-28 02:53:54,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-28 02:53:54,826 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.0952380952380953) internal successors, (65), 22 states have internal predecessors, (65), 4 states have call successors, (36), 3 states have call predecessors, (36), 5 states have return successors, (36), 2 states have call predecessors, (36), 4 states have call successors, (36) Word has length 88 [2024-11-28 02:53:54,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:53:54,829 INFO L225 Difference]: With dead ends: 366 [2024-11-28 02:53:54,831 INFO L226 Difference]: Without dead ends: 255 [2024-11-28 02:53:54,835 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=350, Invalid=1210, Unknown=0, NotChecked=0, Total=1560 [2024-11-28 02:53:54,836 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 189 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 02:53:54,836 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 398 Invalid, 780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 02:53:54,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2024-11-28 02:53:54,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 245. [2024-11-28 02:53:54,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 188 states have (on average 1.2234042553191489) internal successors, (230), 188 states have internal predecessors, (230), 48 states have call successors, (48), 8 states have call predecessors, (48), 8 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-28 02:53:54,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 326 transitions. [2024-11-28 02:53:54,912 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 326 transitions. Word has length 88 [2024-11-28 02:53:54,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:53:54,914 INFO L471 AbstractCegarLoop]: Abstraction has 245 states and 326 transitions. [2024-11-28 02:53:54,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.0952380952380953) internal successors, (65), 22 states have internal predecessors, (65), 4 states have call successors, (36), 3 states have call predecessors, (36), 5 states have return successors, (36), 2 states have call predecessors, (36), 4 states have call successors, (36) [2024-11-28 02:53:54,915 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 326 transitions. [2024-11-28 02:53:54,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-28 02:53:54,917 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:53:54,919 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:53:54,930 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c4e97d-1dac-40ee-b5cf-9710262468d5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 02:53:55,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c4e97d-1dac-40ee-b5cf-9710262468d5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:53:55,124 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:53:55,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:53:55,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1703942898, now seen corresponding path program 1 times [2024-11-28 02:53:55,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:53:55,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765677619] [2024-11-28 02:53:55,125 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:53:55,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:53:55,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:00,676 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-28 02:54:00,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:54:00,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765677619] [2024-11-28 02:54:00,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765677619] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:54:00,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:54:00,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 02:54:00,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679371765] [2024-11-28 02:54:00,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:54:00,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 02:54:00,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:54:00,679 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 02:54:00,680 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-11-28 02:54:00,681 INFO L87 Difference]: Start difference. First operand 245 states and 326 transitions. Second operand has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-28 02:54:03,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:54:03,512 INFO L93 Difference]: Finished difference Result 648 states and 845 transitions. [2024-11-28 02:54:03,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 02:54:03,513 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 89 [2024-11-28 02:54:03,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:54:03,521 INFO L225 Difference]: With dead ends: 648 [2024-11-28 02:54:03,521 INFO L226 Difference]: Without dead ends: 406 [2024-11-28 02:54:03,522 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=117, Invalid=435, Unknown=0, NotChecked=0, Total=552 [2024-11-28 02:54:03,523 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 524 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 797 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 524 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-28 02:54:03,523 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [524 Valid, 472 Invalid, 854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 797 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-28 02:54:03,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2024-11-28 02:54:03,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 257. [2024-11-28 02:54:03,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 200 states have (on average 1.215) internal successors, (243), 200 states have internal predecessors, (243), 48 states have call successors, (48), 8 states have call predecessors, (48), 8 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-28 02:54:03,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 339 transitions. [2024-11-28 02:54:03,594 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 339 transitions. Word has length 89 [2024-11-28 02:54:03,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:54:03,595 INFO L471 AbstractCegarLoop]: Abstraction has 257 states and 339 transitions. [2024-11-28 02:54:03,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-28 02:54:03,595 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 339 transitions. [2024-11-28 02:54:03,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-28 02:54:03,598 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:54:03,599 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:54:03,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 02:54:03,599 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:54:03,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:54:03,604 INFO L85 PathProgramCache]: Analyzing trace with hash 682874544, now seen corresponding path program 1 times [2024-11-28 02:54:03,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:54:03,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128316792] [2024-11-28 02:54:03,604 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:03,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:54:03,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:07,530 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-28 02:54:07,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:54:07,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128316792] [2024-11-28 02:54:07,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128316792] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:54:07,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:54:07,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 02:54:07,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513226083] [2024-11-28 02:54:07,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:54:07,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 02:54:07,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:54:07,533 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 02:54:07,533 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-28 02:54:07,533 INFO L87 Difference]: Start difference. First operand 257 states and 339 transitions. Second operand has 13 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-28 02:54:12,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 02:54:16,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:54:16,602 INFO L93 Difference]: Finished difference Result 474 states and 604 transitions. [2024-11-28 02:54:16,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 02:54:16,603 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 89 [2024-11-28 02:54:16,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:54:16,606 INFO L225 Difference]: With dead ends: 474 [2024-11-28 02:54:16,606 INFO L226 Difference]: Without dead ends: 411 [2024-11-28 02:54:16,607 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-11-28 02:54:16,608 INFO L435 NwaCegarLoop]: 94 mSDtfsCounter, 258 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 1193 mSolverCounterSat, 39 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 636 SdHoareTripleChecker+Invalid, 1233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1193 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:54:16,608 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 636 Invalid, 1233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1193 Invalid, 1 Unknown, 0 Unchecked, 7.1s Time] [2024-11-28 02:54:16,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2024-11-28 02:54:16,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 257. [2024-11-28 02:54:16,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 200 states have (on average 1.215) internal successors, (243), 200 states have internal predecessors, (243), 48 states have call successors, (48), 8 states have call predecessors, (48), 8 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-28 02:54:16,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 339 transitions. [2024-11-28 02:54:16,648 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 339 transitions. Word has length 89 [2024-11-28 02:54:16,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:54:16,649 INFO L471 AbstractCegarLoop]: Abstraction has 257 states and 339 transitions. [2024-11-28 02:54:16,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-28 02:54:16,650 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 339 transitions. [2024-11-28 02:54:16,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-28 02:54:16,651 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:54:16,651 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:54:16,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 02:54:16,652 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:54:16,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:54:16,652 INFO L85 PathProgramCache]: Analyzing trace with hash -68655379, now seen corresponding path program 1 times [2024-11-28 02:54:16,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:54:16,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828725334] [2024-11-28 02:54:16,653 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:16,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:54:16,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:16,793 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-28 02:54:16,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:54:16,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828725334] [2024-11-28 02:54:16,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828725334] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:54:16,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:54:16,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:54:16,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130110469] [2024-11-28 02:54:16,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:54:16,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:54:16,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:54:16,796 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:54:16,796 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:54:16,797 INFO L87 Difference]: Start difference. First operand 257 states and 339 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-28 02:54:16,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:54:16,845 INFO L93 Difference]: Finished difference Result 516 states and 685 transitions. [2024-11-28 02:54:16,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:54:16,846 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 90 [2024-11-28 02:54:16,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:54:16,849 INFO L225 Difference]: With dead ends: 516 [2024-11-28 02:54:16,850 INFO L226 Difference]: Without dead ends: 262 [2024-11-28 02:54:16,853 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:54:16,854 INFO L435 NwaCegarLoop]: 80 mSDtfsCounter, 0 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:54:16,854 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 155 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:54:16,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2024-11-28 02:54:16,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 260. [2024-11-28 02:54:16,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 203 states have (on average 1.2118226600985222) internal successors, (246), 203 states have internal predecessors, (246), 48 states have call successors, (48), 8 states have call predecessors, (48), 8 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-28 02:54:16,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 342 transitions. [2024-11-28 02:54:16,897 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 342 transitions. Word has length 90 [2024-11-28 02:54:16,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:54:16,899 INFO L471 AbstractCegarLoop]: Abstraction has 260 states and 342 transitions. [2024-11-28 02:54:16,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-28 02:54:16,899 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 342 transitions. [2024-11-28 02:54:16,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-28 02:54:16,901 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:54:16,901 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:54:16,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 02:54:16,901 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:54:16,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:54:16,902 INFO L85 PathProgramCache]: Analyzing trace with hash 272433549, now seen corresponding path program 1 times [2024-11-28 02:54:16,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:54:16,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910737903] [2024-11-28 02:54:16,903 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:16,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:54:16,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:17,618 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-28 02:54:17,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:54:17,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910737903] [2024-11-28 02:54:17,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910737903] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:54:17,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:54:17,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:54:17,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853511354] [2024-11-28 02:54:17,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:54:17,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:54:17,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:54:17,620 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:54:17,620 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:54:17,621 INFO L87 Difference]: Start difference. First operand 260 states and 342 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-28 02:54:17,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:54:17,935 INFO L93 Difference]: Finished difference Result 322 states and 414 transitions. [2024-11-28 02:54:17,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:54:17,936 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 91 [2024-11-28 02:54:17,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:54:17,939 INFO L225 Difference]: With dead ends: 322 [2024-11-28 02:54:17,939 INFO L226 Difference]: Without dead ends: 320 [2024-11-28 02:54:17,939 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:54:17,940 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 24 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:54:17,941 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 303 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:54:17,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2024-11-28 02:54:17,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 306. [2024-11-28 02:54:17,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 249 states have (on average 1.2048192771084338) internal successors, (300), 249 states have internal predecessors, (300), 48 states have call successors, (48), 8 states have call predecessors, (48), 8 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-28 02:54:17,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 396 transitions. [2024-11-28 02:54:17,980 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 396 transitions. Word has length 91 [2024-11-28 02:54:17,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:54:17,981 INFO L471 AbstractCegarLoop]: Abstraction has 306 states and 396 transitions. [2024-11-28 02:54:17,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-28 02:54:17,981 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 396 transitions. [2024-11-28 02:54:17,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-28 02:54:17,982 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:54:17,982 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:54:17,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 02:54:17,983 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:54:17,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:54:17,983 INFO L85 PathProgramCache]: Analyzing trace with hash 59794543, now seen corresponding path program 1 times [2024-11-28 02:54:17,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:54:17,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055397406] [2024-11-28 02:54:17,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:17,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:54:18,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:18,063 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-28 02:54:18,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:54:18,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055397406] [2024-11-28 02:54:18,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055397406] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:54:18,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:54:18,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:54:18,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398832024] [2024-11-28 02:54:18,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:54:18,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:54:18,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:54:18,066 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:54:18,067 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:54:18,067 INFO L87 Difference]: Start difference. First operand 306 states and 396 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-28 02:54:18,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:54:18,221 INFO L93 Difference]: Finished difference Result 519 states and 678 transitions. [2024-11-28 02:54:18,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:54:18,222 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 91 [2024-11-28 02:54:18,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:54:18,226 INFO L225 Difference]: With dead ends: 519 [2024-11-28 02:54:18,227 INFO L226 Difference]: Without dead ends: 355 [2024-11-28 02:54:18,227 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:54:18,228 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 67 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:54:18,228 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 117 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:54:18,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2024-11-28 02:54:18,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 207. [2024-11-28 02:54:18,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 164 states have (on average 1.1890243902439024) internal successors, (195), 164 states have internal predecessors, (195), 36 states have call successors, (36), 6 states have call predecessors, (36), 6 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-28 02:54:18,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 267 transitions. [2024-11-28 02:54:18,276 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 267 transitions. Word has length 91 [2024-11-28 02:54:18,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:54:18,277 INFO L471 AbstractCegarLoop]: Abstraction has 207 states and 267 transitions. [2024-11-28 02:54:18,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-28 02:54:18,281 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 267 transitions. [2024-11-28 02:54:18,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-28 02:54:18,282 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:54:18,282 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:54:18,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 02:54:18,283 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:54:18,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:54:18,283 INFO L85 PathProgramCache]: Analyzing trace with hash 200214122, now seen corresponding path program 1 times [2024-11-28 02:54:18,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:54:18,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100059224] [2024-11-28 02:54:18,283 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:18,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:54:18,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:18,352 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-28 02:54:18,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:54:18,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100059224] [2024-11-28 02:54:18,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100059224] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:54:18,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:54:18,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:54:18,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209704951] [2024-11-28 02:54:18,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:54:18,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:54:18,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:54:18,354 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:54:18,354 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:54:18,354 INFO L87 Difference]: Start difference. First operand 207 states and 267 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-28 02:54:18,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:54:18,508 INFO L93 Difference]: Finished difference Result 348 states and 448 transitions. [2024-11-28 02:54:18,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:54:18,509 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 92 [2024-11-28 02:54:18,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:54:18,512 INFO L225 Difference]: With dead ends: 348 [2024-11-28 02:54:18,512 INFO L226 Difference]: Without dead ends: 214 [2024-11-28 02:54:18,512 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:54:18,513 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 53 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:54:18,514 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 168 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:54:18,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2024-11-28 02:54:18,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 211. [2024-11-28 02:54:18,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 168 states have (on average 1.1666666666666667) internal successors, (196), 168 states have internal predecessors, (196), 36 states have call successors, (36), 6 states have call predecessors, (36), 6 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-28 02:54:18,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 268 transitions. [2024-11-28 02:54:18,546 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 268 transitions. Word has length 92 [2024-11-28 02:54:18,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:54:18,546 INFO L471 AbstractCegarLoop]: Abstraction has 211 states and 268 transitions. [2024-11-28 02:54:18,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-28 02:54:18,547 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 268 transitions. [2024-11-28 02:54:18,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-28 02:54:18,548 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:54:18,548 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:54:18,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 02:54:18,549 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:54:18,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:54:18,549 INFO L85 PathProgramCache]: Analyzing trace with hash -703972000, now seen corresponding path program 1 times [2024-11-28 02:54:18,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:54:18,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283096393] [2024-11-28 02:54:18,550 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:18,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:54:18,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:19,229 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-28 02:54:19,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:54:19,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283096393] [2024-11-28 02:54:19,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283096393] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:54:19,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:54:19,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:54:19,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671690842] [2024-11-28 02:54:19,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:54:19,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:54:19,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:54:19,232 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:54:19,232 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:54:19,232 INFO L87 Difference]: Start difference. First operand 211 states and 268 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-28 02:54:19,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:54:19,626 INFO L93 Difference]: Finished difference Result 376 states and 470 transitions. [2024-11-28 02:54:19,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:54:19,627 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 93 [2024-11-28 02:54:19,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:54:19,630 INFO L225 Difference]: With dead ends: 376 [2024-11-28 02:54:19,630 INFO L226 Difference]: Without dead ends: 233 [2024-11-28 02:54:19,631 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:54:19,631 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 86 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:54:19,632 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 298 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 02:54:19,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2024-11-28 02:54:19,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 207. [2024-11-28 02:54:19,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 164 states have (on average 1.146341463414634) internal successors, (188), 164 states have internal predecessors, (188), 36 states have call successors, (36), 6 states have call predecessors, (36), 6 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-28 02:54:19,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 260 transitions. [2024-11-28 02:54:19,681 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 260 transitions. Word has length 93 [2024-11-28 02:54:19,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:54:19,682 INFO L471 AbstractCegarLoop]: Abstraction has 207 states and 260 transitions. [2024-11-28 02:54:19,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-28 02:54:19,682 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 260 transitions. [2024-11-28 02:54:19,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-28 02:54:19,684 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:54:19,685 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:54:19,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 02:54:19,685 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:54:19,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:54:19,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1404582365, now seen corresponding path program 1 times [2024-11-28 02:54:19,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:54:19,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384590268] [2024-11-28 02:54:19,686 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:19,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:54:19,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:54:19,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [840104741] [2024-11-28 02:54:19,767 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:19,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:19,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c4e97d-1dac-40ee-b5cf-9710262468d5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:54:19,770 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c4e97d-1dac-40ee-b5cf-9710262468d5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:54:19,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c4e97d-1dac-40ee-b5cf-9710262468d5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 02:54:19,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:54:19,862 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:54:19,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:54:19,990 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 02:54:19,990 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 02:54:19,991 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 02:54:20,004 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c4e97d-1dac-40ee-b5cf-9710262468d5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 02:54:20,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c4e97d-1dac-40ee-b5cf-9710262468d5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:20,202 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:54:20,303 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 02:54:20,307 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:54:20 BoogieIcfgContainer [2024-11-28 02:54:20,309 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 02:54:20,310 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 02:54:20,310 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 02:54:20,310 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 02:54:20,311 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:53:48" (3/4) ... [2024-11-28 02:54:20,314 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-28 02:54:20,315 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 02:54:20,317 INFO L158 Benchmark]: Toolchain (without parser) took 33277.85ms. Allocated memory was 117.4MB in the beginning and 268.4MB in the end (delta: 151.0MB). Free memory was 92.8MB in the beginning and 202.3MB in the end (delta: -109.5MB). Peak memory consumption was 42.3MB. Max. memory is 16.1GB. [2024-11-28 02:54:20,318 INFO L158 Benchmark]: CDTParser took 0.47ms. Allocated memory is still 117.4MB. Free memory is still 73.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:54:20,319 INFO L158 Benchmark]: CACSL2BoogieTranslator took 441.64ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 79.7MB in the end (delta: 12.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 02:54:20,320 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.85ms. Allocated memory is still 117.4MB. Free memory was 79.7MB in the beginning and 76.9MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:54:20,321 INFO L158 Benchmark]: Boogie Preprocessor took 54.69ms. Allocated memory is still 117.4MB. Free memory was 76.7MB in the beginning and 73.7MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:54:20,322 INFO L158 Benchmark]: RCFGBuilder took 892.39ms. Allocated memory is still 117.4MB. Free memory was 73.7MB in the beginning and 53.1MB in the end (delta: 20.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-28 02:54:20,322 INFO L158 Benchmark]: TraceAbstraction took 31799.36ms. Allocated memory was 117.4MB in the beginning and 268.4MB in the end (delta: 151.0MB). Free memory was 52.4MB in the beginning and 202.3MB in the end (delta: -149.9MB). Peak memory consumption was 384.7kB. Max. memory is 16.1GB. [2024-11-28 02:54:20,324 INFO L158 Benchmark]: Witness Printer took 5.32ms. Allocated memory is still 268.4MB. Free memory was 202.3MB in the beginning and 202.3MB in the end (delta: 54.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:54:20,326 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 117.4MB. Free memory is still 73.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 441.64ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 79.7MB in the end (delta: 12.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.85ms. Allocated memory is still 117.4MB. Free memory was 79.7MB in the beginning and 76.9MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 54.69ms. Allocated memory is still 117.4MB. Free memory was 76.7MB in the beginning and 73.7MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 892.39ms. Allocated memory is still 117.4MB. Free memory was 73.7MB in the beginning and 53.1MB in the end (delta: 20.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 31799.36ms. Allocated memory was 117.4MB in the beginning and 268.4MB in the end (delta: 151.0MB). Free memory was 52.4MB in the beginning and 202.3MB in the end (delta: -149.9MB). Peak memory consumption was 384.7kB. Max. memory is 16.1GB. * Witness Printer took 5.32ms. Allocated memory is still 268.4MB. Free memory was 202.3MB in the beginning and 202.3MB in the end (delta: 54.2kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 71, overapproximation of someBinaryFLOATComparisonOperation at line 73, overapproximation of someBinaryFLOATComparisonOperation at line 89, overapproximation of bitwiseOr at line 54, overapproximation of bitwiseOr at line 89, overapproximation of bitwiseAnd at line 46. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] float var_1_1 = 99.25; [L23] signed short int var_1_7 = 18477; [L24] signed short int var_1_8 = 5; [L25] float var_1_9 = 5.8; [L26] float var_1_10 = 0.5; [L27] unsigned char var_1_11 = 16; [L28] unsigned char var_1_12 = 50; [L29] unsigned char var_1_13 = 1; [L30] unsigned long int var_1_14 = 256; [L31] unsigned char var_1_15 = 0; [L32] unsigned char last_1_var_1_11 = 16; [L33] unsigned long int last_1_var_1_14 = 256; VAL [isInitial=0, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=18477, var_1_8=5, var_1_9=29/5] [L93] isInitial = 1 [L94] FCALL initially() [L96] CALL updateLastVariables() [L85] last_1_var_1_11 = var_1_11 [L86] last_1_var_1_14 = var_1_14 VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=18477, var_1_8=5, var_1_9=29/5] [L96] RET updateLastVariables() [L97] CALL updateVariables() [L64] var_1_7 = __VERIFIER_nondet_short() [L65] CALL assume_abort_if_not(var_1_7 >= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=5, var_1_9=29/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=5, var_1_9=29/5] [L65] RET assume_abort_if_not(var_1_7 >= 16383) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=5, var_1_9=29/5] [L66] CALL assume_abort_if_not(var_1_7 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=5, var_1_9=29/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=5, var_1_9=29/5] [L66] RET assume_abort_if_not(var_1_7 <= 32767) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=5, var_1_9=29/5] [L67] var_1_8 = __VERIFIER_nondet_short() [L68] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=256, var_1_9=29/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=256, var_1_9=29/5] [L68] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=256, var_1_9=29/5] [L69] CALL assume_abort_if_not(var_1_8 <= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=256, var_1_9=29/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=256, var_1_9=29/5] [L69] RET assume_abort_if_not(var_1_8 <= 16383) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=256, var_1_9=29/5] [L70] var_1_9 = __VERIFIER_nondet_float() [L71] CALL assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=256] [L71] RET assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=256] [L72] var_1_10 = __VERIFIER_nondet_float() [L73] CALL assume_abort_if_not((var_1_10 >= -922337.2036854765600e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=256] [L73] RET assume_abort_if_not((var_1_10 >= -922337.2036854765600e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=256] [L74] var_1_12 = __VERIFIER_nondet_uchar() [L75] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=256] [L75] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=256] [L76] CALL assume_abort_if_not(var_1_12 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=0, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=0, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=256] [L76] RET assume_abort_if_not(var_1_12 <= 254) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=0, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=256] [L77] var_1_13 = __VERIFIER_nondet_uchar() [L78] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=0, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=0, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=256] [L78] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=0, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=256] [L79] CALL assume_abort_if_not(var_1_13 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=256] [L79] RET assume_abort_if_not(var_1_13 <= 254) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=256] [L80] var_1_15 = __VERIFIER_nondet_uchar() [L81] CALL assume_abort_if_not(var_1_15 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_1=397/4, var_1_7=32767, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_1=397/4, var_1_7=32767, var_1_8=256] [L81] RET assume_abort_if_not(var_1_15 >= 0) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_1=397/4, var_1_7=32767, var_1_8=256] [L82] CALL assume_abort_if_not(var_1_15 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=256] [L82] RET assume_abort_if_not(var_1_15 <= 1) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=256] [L97] RET updateVariables() [L98] CALL step() [L37] signed short int stepLocal_3 = var_1_8; [L38] unsigned long int stepLocal_2 = last_1_var_1_14; VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, stepLocal_2=256, stepLocal_3=256, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=256] [L39] COND FALSE !(last_1_var_1_14 > stepLocal_3) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, stepLocal_2=256, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=256] [L46] EXPR var_1_11 & var_1_7 VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, stepLocal_2=256, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=256] [L46] COND FALSE !((var_1_11 & var_1_7) > ((var_1_12 * last_1_var_1_14) * (var_1_11 + var_1_11))) [L51] var_1_14 = var_1_7 VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, stepLocal_2=256, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=32767, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=256] [L53] unsigned char stepLocal_1 = var_1_11; VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, stepLocal_1=16, stepLocal_2=256, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=32767, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=256] [L54] EXPR var_1_11 ^ ((((var_1_11) > (var_1_14)) ? (var_1_11) : (var_1_14))) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, stepLocal_1=16, stepLocal_2=256, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=32767, var_1_15=0, var_1_1=397/4, var_1_7=32767, var_1_8=256] [L54] unsigned long int stepLocal_0 = var_1_11 ^ ((((var_1_11) > (var_1_14)) ? (var_1_11) : (var_1_14))); [L55] COND FALSE !(stepLocal_0 != var_1_11) [L60] var_1_1 = 10.5f VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, stepLocal_1=16, stepLocal_2=256, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=32767, var_1_15=0, var_1_1=21/2, var_1_7=32767, var_1_8=256] [L98] RET step() [L99] CALL, EXPR property() [L89] EXPR var_1_11 ^ ((((var_1_11) > (var_1_14)) ? (var_1_11) : (var_1_14))) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=32767, var_1_15=0, var_1_1=21/2, var_1_7=32767, var_1_8=256] [L89] EXPR ((((var_1_11 ^ ((((var_1_11) > (var_1_14)) ? (var_1_11) : (var_1_14)))) != var_1_11) ? ((var_1_11 == (var_1_11 - (var_1_7 - var_1_11))) ? (var_1_1 == ((float) ((((var_1_9) < (var_1_10)) ? (var_1_9) : (var_1_10))))) : 1) : (var_1_1 == ((float) 10.5f))) && ((last_1_var_1_14 > var_1_8) ? ((((last_1_var_1_11 - var_1_8) + var_1_7) > last_1_var_1_14) ? (var_1_11 == ((unsigned char) ((((var_1_12) < (var_1_13)) ? (var_1_12) : (var_1_13))))) : (var_1_11 == ((unsigned char) var_1_12))) : 1)) && (((var_1_11 & var_1_7) > ((var_1_12 * last_1_var_1_14) * (var_1_11 + var_1_11))) ? ((var_1_15 && (var_1_9 > var_1_10)) ? (var_1_14 == ((unsigned long int) var_1_7)) : 1) : (var_1_14 == ((unsigned long int) var_1_7))) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=32767, var_1_15=0, var_1_1=21/2, var_1_7=32767, var_1_8=256] [L89-L90] return ((((var_1_11 ^ ((((var_1_11) > (var_1_14)) ? (var_1_11) : (var_1_14)))) != var_1_11) ? ((var_1_11 == (var_1_11 - (var_1_7 - var_1_11))) ? (var_1_1 == ((float) ((((var_1_9) < (var_1_10)) ? (var_1_9) : (var_1_10))))) : 1) : (var_1_1 == ((float) 10.5f))) && ((last_1_var_1_14 > var_1_8) ? ((((last_1_var_1_11 - var_1_8) + var_1_7) > last_1_var_1_14) ? (var_1_11 == ((unsigned char) ((((var_1_12) < (var_1_13)) ? (var_1_12) : (var_1_13))))) : (var_1_11 == ((unsigned char) var_1_12))) : 1)) && (((var_1_11 & var_1_7) > ((var_1_12 * last_1_var_1_14) * (var_1_11 + var_1_11))) ? ((var_1_15 && (var_1_9 > var_1_10)) ? (var_1_14 == ((unsigned long int) var_1_7)) : 1) : (var_1_14 == ((unsigned long int) var_1_7))) ; [L99] RET, EXPR property() [L99] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=32767, var_1_15=0, var_1_1=21/2, var_1_7=32767, var_1_8=256] [L19] reach_error() VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=32767, var_1_15=0, var_1_1=21/2, var_1_7=32767, var_1_8=256] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 64 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 31.6s, OverallIterations: 11, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 15.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 1255 SdHoareTripleChecker+Valid, 10.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1255 mSDsluCounter, 2768 SdHoareTripleChecker+Invalid, 9.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1908 mSDsCounter, 176 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3126 IncrementalHoareTripleChecker+Invalid, 3303 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 176 mSolverCounterUnsat, 860 mSDtfsCounter, 3126 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 381 GetRequests, 282 SyntacticMatches, 1 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 381 ImplicationChecksByTransitivity, 6.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=306occurred in iteration=7, InterpolantAutomatonStates: 72, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 10 MinimizatonAttempts, 509 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 13.8s InterpolantComputationTime, 1262 NumberOfCodeBlocks, 1262 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1147 ConstructedInterpolants, 0 QuantifiedInterpolants, 5546 SizeOfPredicates, 4 NumberOfNonLiveVariables, 431 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 13 InterpolantComputations, 9 PerfectInterpolantSequences, 3311/3432 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 02:54:20,405 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c4e97d-1dac-40ee-b5cf-9710262468d5/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c4e97d-1dac-40ee-b5cf-9710262468d5/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c4e97d-1dac-40ee-b5cf-9710262468d5/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_b7c4e97d-1dac-40ee-b5cf-9710262468d5/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c4e97d-1dac-40ee-b5cf-9710262468d5/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-18.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c4e97d-1dac-40ee-b5cf-9710262468d5/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_b7c4e97d-1dac-40ee-b5cf-9710262468d5/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 20590a3b952f77870c005ea22da4ee2c3e5fa42d319fcea291376108e5b76f76 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:54:23,250 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:54:23,387 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c4e97d-1dac-40ee-b5cf-9710262468d5/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-28 02:54:23,397 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:54:23,398 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:54:23,444 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:54:23,445 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:54:23,445 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:54:23,446 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:54:23,447 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:54:23,448 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:54:23,448 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:54:23,449 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:54:23,450 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:54:23,450 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:54:23,451 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:54:23,451 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:54:23,451 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:54:23,451 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:54:23,451 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:54:23,452 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:54:23,452 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:54:23,452 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:54:23,452 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 02:54:23,452 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 02:54:23,453 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 02:54:23,453 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:54:23,453 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:54:23,453 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:54:23,453 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:54:23,453 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:54:23,453 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:54:23,453 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:54:23,454 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:54:23,454 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:54:23,454 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:54:23,454 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:54:23,454 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:54:23,454 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:54:23,455 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:54:23,456 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:54:23,456 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:54:23,456 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:54:23,456 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:54:23,456 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 02:54:23,457 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 02:54:23,457 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:54:23,457 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:54:23,457 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:54:23,457 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:54:23,457 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_b7c4e97d-1dac-40ee-b5cf-9710262468d5/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 -> 20590a3b952f77870c005ea22da4ee2c3e5fa42d319fcea291376108e5b76f76 [2024-11-28 02:54:23,853 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:54:23,863 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:54:23,865 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:54:23,867 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:54:23,867 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:54:23,869 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c4e97d-1dac-40ee-b5cf-9710262468d5/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-18.i [2024-11-28 02:54:27,207 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c4e97d-1dac-40ee-b5cf-9710262468d5/bin/uautomizer-verify-aQ6SnzHsRB/data/83b4d6f10/4776d301d11341949aeba86a48e641de/FLAG23ca540af [2024-11-28 02:54:27,509 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:54:27,510 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c4e97d-1dac-40ee-b5cf-9710262468d5/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-18.i [2024-11-28 02:54:27,522 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c4e97d-1dac-40ee-b5cf-9710262468d5/bin/uautomizer-verify-aQ6SnzHsRB/data/83b4d6f10/4776d301d11341949aeba86a48e641de/FLAG23ca540af [2024-11-28 02:54:27,548 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c4e97d-1dac-40ee-b5cf-9710262468d5/bin/uautomizer-verify-aQ6SnzHsRB/data/83b4d6f10/4776d301d11341949aeba86a48e641de [2024-11-28 02:54:27,550 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:54:27,554 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:54:27,555 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:54:27,556 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:54:27,561 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:54:27,562 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:54:27" (1/1) ... [2024-11-28 02:54:27,566 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e421456 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:27, skipping insertion in model container [2024-11-28 02:54:27,566 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:54:27" (1/1) ... [2024-11-28 02:54:27,593 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:54:27,804 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_b7c4e97d-1dac-40ee-b5cf-9710262468d5/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-18.i[917,930] [2024-11-28 02:54:27,882 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:54:27,912 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:54:27,926 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_b7c4e97d-1dac-40ee-b5cf-9710262468d5/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-18.i[917,930] [2024-11-28 02:54:27,969 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:54:28,002 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:54:28,003 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:28 WrapperNode [2024-11-28 02:54:28,004 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:54:28,006 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:54:28,006 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:54:28,007 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:54:28,014 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:28" (1/1) ... [2024-11-28 02:54:28,025 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:28" (1/1) ... [2024-11-28 02:54:28,050 INFO L138 Inliner]: procedures = 27, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 96 [2024-11-28 02:54:28,050 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:54:28,051 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:54:28,051 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:54:28,052 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:54:28,063 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:28" (1/1) ... [2024-11-28 02:54:28,063 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:28" (1/1) ... [2024-11-28 02:54:28,067 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:28" (1/1) ... [2024-11-28 02:54:28,081 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 02:54:28,081 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:28" (1/1) ... [2024-11-28 02:54:28,082 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:28" (1/1) ... [2024-11-28 02:54:28,100 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:28" (1/1) ... [2024-11-28 02:54:28,102 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:28" (1/1) ... [2024-11-28 02:54:28,108 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:28" (1/1) ... [2024-11-28 02:54:28,112 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:28" (1/1) ... [2024-11-28 02:54:28,113 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:28" (1/1) ... [2024-11-28 02:54:28,120 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:54:28,121 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:54:28,122 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:54:28,122 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:54:28,126 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:28" (1/1) ... [2024-11-28 02:54:28,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:54:28,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c4e97d-1dac-40ee-b5cf-9710262468d5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:54:28,173 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c4e97d-1dac-40ee-b5cf-9710262468d5/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:54:28,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c4e97d-1dac-40ee-b5cf-9710262468d5/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:54:28,205 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:54:28,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 02:54:28,205 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 02:54:28,205 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 02:54:28,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:54:28,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:54:28,281 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:54:28,282 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:54:28,649 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-28 02:54:28,649 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:54:28,659 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:54:28,659 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 02:54:28,660 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:54:28 BoogieIcfgContainer [2024-11-28 02:54:28,660 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:54:28,663 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:54:28,663 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:54:28,670 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:54:28,670 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:54:27" (1/3) ... [2024-11-28 02:54:28,671 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7934848f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:54:28, skipping insertion in model container [2024-11-28 02:54:28,671 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:28" (2/3) ... [2024-11-28 02:54:28,673 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7934848f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:54:28, skipping insertion in model container [2024-11-28 02:54:28,674 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:54:28" (3/3) ... [2024-11-28 02:54:28,675 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-18.i [2024-11-28 02:54:28,696 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:54:28,700 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_floatingpointinfluence_has-floats_file-18.i that has 2 procedures, 45 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 02:54:28,776 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:54:28,797 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;@519cbe07, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:54:28,797 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 02:54:28,804 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 30 states have (on average 1.3666666666666667) internal successors, (41), 31 states have internal predecessors, (41), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 02:54:28,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-28 02:54:28,816 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:54:28,816 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:54:28,817 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:54:28,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:54:28,825 INFO L85 PathProgramCache]: Analyzing trace with hash -310559141, now seen corresponding path program 1 times [2024-11-28 02:54:28,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:54:28,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [97039501] [2024-11-28 02:54:28,853 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:28,853 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 02:54:28,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c4e97d-1dac-40ee-b5cf-9710262468d5/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:54:28,858 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c4e97d-1dac-40ee-b5cf-9710262468d5/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 02:54:28,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c4e97d-1dac-40ee-b5cf-9710262468d5/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 02:54:29,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:29,052 INFO L256 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 02:54:29,059 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:54:29,092 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2024-11-28 02:54:29,092 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:54:29,093 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:54:29,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [97039501] [2024-11-28 02:54:29,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [97039501] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:54:29,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:54:29,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:54:29,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267941917] [2024-11-28 02:54:29,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:54:29,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 02:54:29,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:54:29,117 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:54:29,118 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:54:29,119 INFO L87 Difference]: Start difference. First operand has 45 states, 30 states have (on average 1.3666666666666667) internal successors, (41), 31 states have internal predecessors, (41), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-28 02:54:29,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:54:29,143 INFO L93 Difference]: Finished difference Result 83 states and 136 transitions. [2024-11-28 02:54:29,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:54:29,145 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 80 [2024-11-28 02:54:29,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:54:29,154 INFO L225 Difference]: With dead ends: 83 [2024-11-28 02:54:29,154 INFO L226 Difference]: Without dead ends: 41 [2024-11-28 02:54:29,159 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 79 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 02:54:29,164 INFO L435 NwaCegarLoop]: 58 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, 58 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 02:54:29,165 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:54:29,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2024-11-28 02:54:29,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2024-11-28 02:54:29,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 27 states have internal predecessors, (34), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 02:54:29,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 58 transitions. [2024-11-28 02:54:29,211 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 58 transitions. Word has length 80 [2024-11-28 02:54:29,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:54:29,211 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 58 transitions. [2024-11-28 02:54:29,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-28 02:54:29,212 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 58 transitions. [2024-11-28 02:54:29,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-28 02:54:29,215 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:54:29,215 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:54:29,221 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c4e97d-1dac-40ee-b5cf-9710262468d5/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 02:54:29,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c4e97d-1dac-40ee-b5cf-9710262468d5/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 02:54:29,416 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:54:29,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:54:29,417 INFO L85 PathProgramCache]: Analyzing trace with hash 392918431, now seen corresponding path program 1 times [2024-11-28 02:54:29,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:54:29,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [792477466] [2024-11-28 02:54:29,417 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:29,418 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 02:54:29,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c4e97d-1dac-40ee-b5cf-9710262468d5/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:54:29,422 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c4e97d-1dac-40ee-b5cf-9710262468d5/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 02:54:29,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c4e97d-1dac-40ee-b5cf-9710262468d5/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 [2024-11-28 02:54:29,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:29,658 INFO L256 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 02:54:29,667 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:54:30,766 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 11 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-28 02:54:30,768 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:54:31,374 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-28 02:54:31,374 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:54:31,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [792477466] [2024-11-28 02:54:31,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [792477466] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:54:31,375 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 02:54:31,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2024-11-28 02:54:31,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586427952] [2024-11-28 02:54:31,378 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 02:54:31,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 02:54:31,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:54:31,382 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 02:54:31,383 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-28 02:54:31,383 INFO L87 Difference]: Start difference. First operand 41 states and 58 transitions. Second operand has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 4 states have call successors, (24), 3 states have call predecessors, (24), 4 states have return successors, (24), 2 states have call predecessors, (24), 4 states have call successors, (24) [2024-11-28 02:54:33,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:54:33,780 INFO L93 Difference]: Finished difference Result 213 states and 294 transitions. [2024-11-28 02:54:33,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-28 02:54:33,782 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 4 states have call successors, (24), 3 states have call predecessors, (24), 4 states have return successors, (24), 2 states have call predecessors, (24), 4 states have call successors, (24) Word has length 80 [2024-11-28 02:54:33,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:54:33,788 INFO L225 Difference]: With dead ends: 213 [2024-11-28 02:54:33,790 INFO L226 Difference]: Without dead ends: 175 [2024-11-28 02:54:33,792 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=262, Invalid=494, Unknown=0, NotChecked=0, Total=756 [2024-11-28 02:54:33,793 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 149 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-28 02:54:33,793 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 280 Invalid, 613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-28 02:54:33,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2024-11-28 02:54:33,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 88. [2024-11-28 02:54:33,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 59 states have (on average 1.2203389830508475) internal successors, (72), 59 states have internal predecessors, (72), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-28 02:54:33,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 120 transitions. [2024-11-28 02:54:33,856 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 120 transitions. Word has length 80 [2024-11-28 02:54:33,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:54:33,857 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 120 transitions. [2024-11-28 02:54:33,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 4 states have call successors, (24), 3 states have call predecessors, (24), 4 states have return successors, (24), 2 states have call predecessors, (24), 4 states have call successors, (24) [2024-11-28 02:54:33,857 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 120 transitions. [2024-11-28 02:54:33,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-28 02:54:33,860 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:54:33,860 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:54:33,866 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c4e97d-1dac-40ee-b5cf-9710262468d5/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)] Forceful destruction successful, exit code 0 [2024-11-28 02:54:34,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c4e97d-1dac-40ee-b5cf-9710262468d5/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 02:54:34,061 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:54:34,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:54:34,062 INFO L85 PathProgramCache]: Analyzing trace with hash -938143787, now seen corresponding path program 1 times [2024-11-28 02:54:34,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:54:34,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1009754982] [2024-11-28 02:54:34,062 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:34,063 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 02:54:34,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c4e97d-1dac-40ee-b5cf-9710262468d5/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:54:34,067 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c4e97d-1dac-40ee-b5cf-9710262468d5/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 02:54:34,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7c4e97d-1dac-40ee-b5cf-9710262468d5/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 (4)] Waiting until timeout for monitored process [2024-11-28 02:54:34,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:34,239 INFO L256 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-28 02:54:34,249 INFO L279 TraceCheckSpWp]: Computing forward predicates...