./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-21.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_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-21.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1 --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 4557fd955b08b5fada9f3a6efa621afd9324a377fdc4d7b9e90703dc668aa740 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 11:04:05,759 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 11:04:05,815 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 11:04:05,820 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 11:04:05,820 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 11:04:05,840 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 11:04:05,841 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 11:04:05,841 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 11:04:05,841 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 11:04:05,841 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 11:04:05,842 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 11:04:05,842 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 11:04:05,842 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 11:04:05,842 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 11:04:05,842 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 11:04:05,842 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 11:04:05,842 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 11:04:05,843 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 11:04:05,843 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 11:04:05,843 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 11:04:05,843 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 11:04:05,843 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 11:04:05,843 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 11:04:05,843 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 11:04:05,843 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 11:04:05,843 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 11:04:05,843 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 11:04:05,843 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 11:04:05,843 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 11:04:05,843 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:04:05,844 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:04:05,844 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:04:05,844 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:04:05,844 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 11:04:05,844 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:04:05,844 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:04:05,844 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:04:05,844 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:04:05,844 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 11:04:05,844 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 11:04:05,844 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 11:04:05,845 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 11:04:05,845 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 11:04:05,845 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 11:04:05,845 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 11:04:05,845 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 11:04:05,845 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 11:04:05,845 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 11:04:05,845 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_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1 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 -> 4557fd955b08b5fada9f3a6efa621afd9324a377fdc4d7b9e90703dc668aa740 [2024-12-02 11:04:06,072 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 11:04:06,080 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 11:04:06,082 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 11:04:06,083 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 11:04:06,083 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 11:04:06,084 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-21.i [2024-12-02 11:04:08,754 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/data/234b4b498/9efb6d57b73d4efa80d3e21a4f7dc981/FLAG38ff49303 [2024-12-02 11:04:08,952 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 11:04:08,953 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-21.i [2024-12-02 11:04:08,960 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/data/234b4b498/9efb6d57b73d4efa80d3e21a4f7dc981/FLAG38ff49303 [2024-12-02 11:04:08,975 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/data/234b4b498/9efb6d57b73d4efa80d3e21a4f7dc981 [2024-12-02 11:04:08,978 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 11:04:08,979 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 11:04:08,980 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 11:04:08,980 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 11:04:08,985 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 11:04:08,986 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:04:08" (1/1) ... [2024-12-02 11:04:08,987 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b8d531a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:04:08, skipping insertion in model container [2024-12-02 11:04:08,987 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:04:08" (1/1) ... [2024-12-02 11:04:09,005 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 11:04:09,142 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_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-21.i[917,930] [2024-12-02 11:04:09,186 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:04:09,194 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 11:04:09,206 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_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-21.i[917,930] [2024-12-02 11:04:09,221 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:04:09,235 INFO L204 MainTranslator]: Completed translation [2024-12-02 11:04:09,235 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:04:09 WrapperNode [2024-12-02 11:04:09,236 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 11:04:09,237 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 11:04:09,237 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 11:04:09,237 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 11:04:09,244 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:04:09" (1/1) ... [2024-12-02 11:04:09,251 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:04:09" (1/1) ... [2024-12-02 11:04:09,270 INFO L138 Inliner]: procedures = 26, calls = 20, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 84 [2024-12-02 11:04:09,270 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 11:04:09,271 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 11:04:09,271 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 11:04:09,271 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 11:04:09,278 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:04:09" (1/1) ... [2024-12-02 11:04:09,278 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:04:09" (1/1) ... [2024-12-02 11:04:09,280 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:04:09" (1/1) ... [2024-12-02 11:04:09,291 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]. [2024-12-02 11:04:09,292 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:04:09" (1/1) ... [2024-12-02 11:04:09,292 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:04:09" (1/1) ... [2024-12-02 11:04:09,297 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:04:09" (1/1) ... [2024-12-02 11:04:09,298 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:04:09" (1/1) ... [2024-12-02 11:04:09,302 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:04:09" (1/1) ... [2024-12-02 11:04:09,303 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:04:09" (1/1) ... [2024-12-02 11:04:09,304 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:04:09" (1/1) ... [2024-12-02 11:04:09,307 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 11:04:09,308 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 11:04:09,308 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 11:04:09,308 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 11:04:09,309 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:04:09" (1/1) ... [2024-12-02 11:04:09,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:04:09,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:04:09,340 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 11:04:09,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 11:04:09,370 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 11:04:09,370 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 11:04:09,370 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 11:04:09,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 11:04:09,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 11:04:09,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 11:04:09,437 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 11:04:09,439 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 11:04:09,625 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-12-02 11:04:09,625 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 11:04:09,635 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 11:04:09,635 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 11:04:09,635 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:04:09 BoogieIcfgContainer [2024-12-02 11:04:09,636 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 11:04:09,638 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 11:04:09,638 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 11:04:09,643 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 11:04:09,643 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 11:04:08" (1/3) ... [2024-12-02 11:04:09,644 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cc70402 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:04:09, skipping insertion in model container [2024-12-02 11:04:09,644 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:04:09" (2/3) ... [2024-12-02 11:04:09,644 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cc70402 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:04:09, skipping insertion in model container [2024-12-02 11:04:09,645 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:04:09" (3/3) ... [2024-12-02 11:04:09,646 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-21.i [2024-12-02 11:04:09,662 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 11:04:09,664 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_floatingpointinfluence_has-floats_file-21.i that has 2 procedures, 39 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 11:04:09,725 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 11:04:09,738 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;@73599c03, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 11:04:09,738 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 11:04:09,742 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 29 states have (on average 1.4137931034482758) internal successors, (41), 30 states have internal predecessors, (41), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-12-02 11:04:09,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-12-02 11:04:09,750 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:04:09,751 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:04:09,751 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:04:09,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:04:09,757 INFO L85 PathProgramCache]: Analyzing trace with hash -510096507, now seen corresponding path program 1 times [2024-12-02 11:04:09,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:04:09,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752415706] [2024-12-02 11:04:09,765 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:04:09,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:04:09,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:04:09,932 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-12-02 11:04:09,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:04:09,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752415706] [2024-12-02 11:04:09,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752415706] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:04:09,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1411793432] [2024-12-02 11:04:09,933 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:04:09,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:04:09,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:04:09,938 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:04:09,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 11:04:10,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:04:10,037 INFO L256 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 11:04:10,042 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:04:10,055 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-12-02 11:04:10,055 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:04:10,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1411793432] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:04:10,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 11:04:10,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 11:04:10,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050390220] [2024-12-02 11:04:10,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:04:10,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 11:04:10,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:04:10,082 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 11:04:10,083 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 11:04:10,084 INFO L87 Difference]: Start difference. First operand has 39 states, 29 states have (on average 1.4137931034482758) internal successors, (41), 30 states have internal predecessors, (41), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2024-12-02 11:04:10,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:04:10,101 INFO L93 Difference]: Finished difference Result 71 states and 111 transitions. [2024-12-02 11:04:10,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 11:04:10,102 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) Word has length 53 [2024-12-02 11:04:10,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:04:10,106 INFO L225 Difference]: With dead ends: 71 [2024-12-02 11:04:10,106 INFO L226 Difference]: Without dead ends: 35 [2024-12-02 11:04:10,109 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 11:04:10,111 INFO L435 NwaCegarLoop]: 48 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, 48 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 [2024-12-02 11:04:10,112 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:04:10,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2024-12-02 11:04:10,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2024-12-02 11:04:10,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 26 states have internal predecessors, (34), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-12-02 11:04:10,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 48 transitions. [2024-12-02 11:04:10,140 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 48 transitions. Word has length 53 [2024-12-02 11:04:10,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:04:10,140 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 48 transitions. [2024-12-02 11:04:10,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2024-12-02 11:04:10,141 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 48 transitions. [2024-12-02 11:04:10,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-12-02 11:04:10,142 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:04:10,142 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:04:10,152 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 11:04:10,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 11:04:10,343 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:04:10,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:04:10,343 INFO L85 PathProgramCache]: Analyzing trace with hash -1104841853, now seen corresponding path program 1 times [2024-12-02 11:04:10,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:04:10,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552708523] [2024-12-02 11:04:10,344 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:04:10,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:04:10,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:04:12,090 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-12-02 11:04:12,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:04:12,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552708523] [2024-12-02 11:04:12,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552708523] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:04:12,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:04:12,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 11:04:12,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164676984] [2024-12-02 11:04:12,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:04:12,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 11:04:12,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:04:12,093 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 11:04:12,093 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:04:12,094 INFO L87 Difference]: Start difference. First operand 35 states and 48 transitions. Second operand has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-12-02 11:04:12,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:04:12,510 INFO L93 Difference]: Finished difference Result 122 states and 166 transitions. [2024-12-02 11:04:12,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 11:04:12,511 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 53 [2024-12-02 11:04:12,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:04:12,513 INFO L225 Difference]: With dead ends: 122 [2024-12-02 11:04:12,513 INFO L226 Difference]: Without dead ends: 90 [2024-12-02 11:04:12,514 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2024-12-02 11:04:12,515 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 60 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:04:12,515 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 297 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 11:04:12,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-12-02 11:04:12,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 80. [2024-12-02 11:04:12,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 59 states have (on average 1.2033898305084745) internal successors, (71), 60 states have internal predecessors, (71), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 16 states have call predecessors, (17), 17 states have call successors, (17) [2024-12-02 11:04:12,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 105 transitions. [2024-12-02 11:04:12,532 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 105 transitions. Word has length 53 [2024-12-02 11:04:12,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:04:12,532 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 105 transitions. [2024-12-02 11:04:12,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-12-02 11:04:12,533 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 105 transitions. [2024-12-02 11:04:12,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-12-02 11:04:12,534 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:04:12,534 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:04:12,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 11:04:12,534 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:04:12,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:04:12,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1443072449, now seen corresponding path program 1 times [2024-12-02 11:04:12,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:04:12,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686582746] [2024-12-02 11:04:12,535 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:04:12,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:04:12,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:04:13,534 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-12-02 11:04:13,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:04:13,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686582746] [2024-12-02 11:04:13,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686582746] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:04:13,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:04:13,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 11:04:13,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957526142] [2024-12-02 11:04:13,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:04:13,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 11:04:13,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:04:13,536 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 11:04:13,536 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-12-02 11:04:13,536 INFO L87 Difference]: Start difference. First operand 80 states and 105 transitions. Second operand has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-12-02 11:04:14,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:04:14,356 INFO L93 Difference]: Finished difference Result 197 states and 262 transitions. [2024-12-02 11:04:14,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 11:04:14,357 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 55 [2024-12-02 11:04:14,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:04:14,359 INFO L225 Difference]: With dead ends: 197 [2024-12-02 11:04:14,360 INFO L226 Difference]: Without dead ends: 165 [2024-12-02 11:04:14,360 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=129, Invalid=333, Unknown=0, NotChecked=0, Total=462 [2024-12-02 11:04:14,361 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 195 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 11:04:14,361 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 312 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 11:04:14,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2024-12-02 11:04:14,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 135. [2024-12-02 11:04:14,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 97 states have (on average 1.1958762886597938) internal successors, (116), 99 states have internal predecessors, (116), 31 states have call successors, (31), 6 states have call predecessors, (31), 6 states have return successors, (31), 29 states have call predecessors, (31), 31 states have call successors, (31) [2024-12-02 11:04:14,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 178 transitions. [2024-12-02 11:04:14,390 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 178 transitions. Word has length 55 [2024-12-02 11:04:14,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:04:14,391 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 178 transitions. [2024-12-02 11:04:14,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-12-02 11:04:14,391 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 178 transitions. [2024-12-02 11:04:14,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-12-02 11:04:14,392 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:04:14,392 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:04:14,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 11:04:14,392 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:04:14,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:04:14,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1551859698, now seen corresponding path program 1 times [2024-12-02 11:04:14,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:04:14,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319978612] [2024-12-02 11:04:14,393 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:04:14,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:04:14,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 11:04:14,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1259033804] [2024-12-02 11:04:14,417 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:04:14,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:04:14,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:04:14,419 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:04:14,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 11:04:14,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:04:14,488 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 11:04:14,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:04:14,537 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 11:04:14,537 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 11:04:14,538 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 11:04:14,550 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 11:04:14,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-12-02 11:04:14,743 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-12-02 11:04:14,773 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 11:04:14,775 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 11:04:14 BoogieIcfgContainer [2024-12-02 11:04:14,775 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 11:04:14,776 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 11:04:14,776 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 11:04:14,776 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 11:04:14,777 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:04:09" (3/4) ... [2024-12-02 11:04:14,778 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 11:04:14,779 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 11:04:14,779 INFO L158 Benchmark]: Toolchain (without parser) took 5800.77ms. Allocated memory was 117.4MB in the beginning and 226.5MB in the end (delta: 109.1MB). Free memory was 93.1MB in the beginning and 174.9MB in the end (delta: -81.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-12-02 11:04:14,780 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 117.4MB. Free memory was 73.4MB in the beginning and 73.3MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 11:04:14,780 INFO L158 Benchmark]: CACSL2BoogieTranslator took 255.89ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 80.3MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 11:04:14,780 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.53ms. Allocated memory is still 117.4MB. Free memory was 80.3MB in the beginning and 78.3MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 11:04:14,781 INFO L158 Benchmark]: Boogie Preprocessor took 36.36ms. Allocated memory is still 117.4MB. Free memory was 78.3MB in the beginning and 75.5MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 11:04:14,781 INFO L158 Benchmark]: RCFGBuilder took 327.75ms. Allocated memory is still 117.4MB. Free memory was 75.5MB in the beginning and 62.2MB in the end (delta: 13.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 11:04:14,781 INFO L158 Benchmark]: TraceAbstraction took 5137.36ms. Allocated memory was 117.4MB in the beginning and 226.5MB in the end (delta: 109.1MB). Free memory was 61.6MB in the beginning and 174.9MB in the end (delta: -113.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 11:04:14,781 INFO L158 Benchmark]: Witness Printer took 2.83ms. Allocated memory is still 226.5MB. Free memory was 174.9MB in the beginning and 174.9MB in the end (delta: 45.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 11:04:14,783 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 117.4MB. Free memory was 73.4MB in the beginning and 73.3MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 255.89ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 80.3MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.53ms. Allocated memory is still 117.4MB. Free memory was 80.3MB in the beginning and 78.3MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.36ms. Allocated memory is still 117.4MB. Free memory was 78.3MB in the beginning and 75.5MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 327.75ms. Allocated memory is still 117.4MB. Free memory was 75.5MB in the beginning and 62.2MB in the end (delta: 13.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 5137.36ms. Allocated memory was 117.4MB in the beginning and 226.5MB in the end (delta: 109.1MB). Free memory was 61.6MB in the beginning and 174.9MB in the end (delta: -113.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.83ms. Allocated memory is still 226.5MB. Free memory was 174.9MB in the beginning and 174.9MB in the end (delta: 45.2kB). 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 someBinaryDOUBLEComparisonOperation at line 64, overapproximation of someBinaryDOUBLEComparisonOperation at line 66, overapproximation of someBinaryDOUBLEComparisonOperation at line 62, overapproximation of someBinaryDOUBLEComparisonOperation at line 52, overapproximation of someBinaryDOUBLEComparisonOperation at line 46, overapproximation of someBinaryDOUBLEComparisonOperation at line 80. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 32; [L23] unsigned char var_1_7 = 0; [L24] double var_1_8 = 15.6; [L25] double var_1_9 = 15.4; [L26] double var_1_10 = 32.2; [L27] unsigned char var_1_12 = 1; [L28] signed short int var_1_13 = 256; [L29] float var_1_14 = 5.75; [L30] float var_1_15 = 8.6; [L31] unsigned char last_1_var_1_7 = 0; [L32] signed short int last_1_var_1_13 = 256; VAL [isInitial=0, last_1_var_1_13=256, last_1_var_1_7=0, var_1_10=161/5, var_1_12=1, var_1_13=256, var_1_14=23/4, var_1_15=43/5, var_1_1=32, var_1_7=0, var_1_8=78/5, var_1_9=77/5] [L84] isInitial = 1 [L85] FCALL initially() [L87] CALL updateLastVariables() [L76] last_1_var_1_7 = var_1_7 [L77] last_1_var_1_13 = var_1_13 VAL [isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_10=161/5, var_1_12=1, var_1_13=256, var_1_14=23/4, var_1_15=43/5, var_1_1=32, var_1_7=0, var_1_8=78/5, var_1_9=77/5] [L87] RET updateLastVariables() [L88] CALL updateVariables() [L61] var_1_8 = __VERIFIER_nondet_double() [L62] CALL assume_abort_if_not((var_1_8 >= -922337.2036854776000e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854776000e+12F && var_1_8 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_10=161/5, var_1_12=1, var_1_13=256, var_1_14=23/4, var_1_15=43/5, var_1_1=32, var_1_7=0, var_1_9=77/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_10=161/5, var_1_12=1, var_1_13=256, var_1_14=23/4, var_1_15=43/5, var_1_1=32, var_1_7=0, var_1_9=77/5] [L62] RET assume_abort_if_not((var_1_8 >= -922337.2036854776000e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854776000e+12F && var_1_8 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_10=161/5, var_1_12=1, var_1_13=256, var_1_14=23/4, var_1_15=43/5, var_1_1=32, var_1_7=0, var_1_9=77/5] [L63] var_1_9 = __VERIFIER_nondet_double() [L64] CALL assume_abort_if_not((var_1_9 >= -922337.2036854776000e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854776000e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_10=161/5, var_1_12=1, var_1_13=256, var_1_14=23/4, var_1_15=43/5, var_1_1=32, var_1_7=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_10=161/5, var_1_12=1, var_1_13=256, var_1_14=23/4, var_1_15=43/5, var_1_1=32, var_1_7=0] [L64] RET assume_abort_if_not((var_1_9 >= -922337.2036854776000e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854776000e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_10=161/5, var_1_12=1, var_1_13=256, var_1_14=23/4, var_1_15=43/5, var_1_1=32, var_1_7=0] [L65] var_1_10 = __VERIFIER_nondet_double() [L66] CALL assume_abort_if_not((var_1_10 >= -922337.2036854776000e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854776000e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_12=1, var_1_13=256, var_1_14=23/4, var_1_15=43/5, var_1_1=32, var_1_7=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_12=1, var_1_13=256, var_1_14=23/4, var_1_15=43/5, var_1_1=32, var_1_7=0] [L66] RET assume_abort_if_not((var_1_10 >= -922337.2036854776000e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854776000e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_12=1, var_1_13=256, var_1_14=23/4, var_1_15=43/5, var_1_1=32, var_1_7=0] [L67] var_1_12 = __VERIFIER_nondet_uchar() [L68] CALL assume_abort_if_not(var_1_12 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_12=1, var_1_13=256, var_1_14=23/4, var_1_15=43/5, var_1_1=32, var_1_7=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_12=1, var_1_13=256, var_1_14=23/4, var_1_15=43/5, var_1_1=32, var_1_7=0] [L68] RET assume_abort_if_not(var_1_12 >= 1) VAL [isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_12=1, var_1_13=256, var_1_14=23/4, var_1_15=43/5, var_1_1=32, var_1_7=0] [L69] CALL assume_abort_if_not(var_1_12 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_12=1, var_1_13=256, var_1_14=23/4, var_1_15=43/5, var_1_1=32, var_1_7=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_12=1, var_1_13=256, var_1_14=23/4, var_1_15=43/5, var_1_1=32, var_1_7=0] [L69] RET assume_abort_if_not(var_1_12 <= 1) VAL [isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_12=1, var_1_13=256, var_1_14=23/4, var_1_15=43/5, var_1_1=32, var_1_7=0] [L70] var_1_14 = __VERIFIER_nondet_float() [L71] CALL assume_abort_if_not((var_1_14 >= 0.0F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854776000e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_12=1, var_1_13=256, var_1_15=43/5, var_1_1=32, var_1_7=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_12=1, var_1_13=256, var_1_15=43/5, var_1_1=32, var_1_7=0] [L71] RET assume_abort_if_not((var_1_14 >= 0.0F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854776000e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_12=1, var_1_13=256, var_1_15=43/5, var_1_1=32, var_1_7=0] [L72] var_1_15 = __VERIFIER_nondet_float() [L73] CALL assume_abort_if_not((var_1_15 >= 0.0F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854776000e+12F && var_1_15 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_12=1, var_1_13=256, var_1_1=32, var_1_7=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_12=1, var_1_13=256, var_1_1=32, var_1_7=0] [L73] RET assume_abort_if_not((var_1_15 >= 0.0F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854776000e+12F && var_1_15 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_12=1, var_1_13=256, var_1_1=32, var_1_7=0] [L88] RET updateVariables() [L89] CALL step() [L36] COND TRUE (last_1_var_1_13 + ((((last_1_var_1_13) > (last_1_var_1_13)) ? (last_1_var_1_13) : (last_1_var_1_13)))) < (last_1_var_1_13 * last_1_var_1_13) VAL [isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_12=1, var_1_13=256, var_1_1=32, var_1_7=0] [L37] COND FALSE !(last_1_var_1_13 < (last_1_var_1_13 - last_1_var_1_13)) VAL [isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_12=1, var_1_13=256, var_1_1=32, var_1_7=0] [L45] COND TRUE \read(var_1_12) VAL [isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_12=1, var_1_13=256, var_1_1=32, var_1_7=0] [L46] COND TRUE (var_1_14 - var_1_15) >= ((var_1_8 + var_1_10) + var_1_9) [L47] var_1_13 = ((((var_1_1) > (var_1_1)) ? (var_1_1) : (var_1_1))) VAL [isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_12=1, var_1_13=32, var_1_1=32, var_1_7=0] [L52] COND TRUE ((((var_1_8) < (var_1_9)) ? (var_1_8) : (var_1_9))) <= var_1_10 VAL [isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_12=1, var_1_13=32, var_1_1=32, var_1_7=0] [L53] COND FALSE !(last_1_var_1_7 && (var_1_1 >= var_1_1)) VAL [isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_12=1, var_1_13=32, var_1_1=32, var_1_7=0] [L89] RET step() [L90] CALL, EXPR property() [L80-L81] return ((((last_1_var_1_13 + ((((last_1_var_1_13) > (last_1_var_1_13)) ? (last_1_var_1_13) : (last_1_var_1_13)))) < (last_1_var_1_13 * last_1_var_1_13)) ? ((last_1_var_1_13 < (last_1_var_1_13 - last_1_var_1_13)) ? ((last_1_var_1_13 != (((((((last_1_var_1_13) < (last_1_var_1_13)) ? (last_1_var_1_13) : (last_1_var_1_13))) < 0 ) ? -((((last_1_var_1_13) < (last_1_var_1_13)) ? (last_1_var_1_13) : (last_1_var_1_13))) : ((((last_1_var_1_13) < (last_1_var_1_13)) ? (last_1_var_1_13) : (last_1_var_1_13)))))) ? (var_1_1 == ((unsigned short int) last_1_var_1_13)) : 1) : 1) : (var_1_1 == ((unsigned short int) last_1_var_1_13))) && ((((((var_1_8) < (var_1_9)) ? (var_1_8) : (var_1_9))) <= var_1_10) ? ((last_1_var_1_7 && (var_1_1 >= var_1_1)) ? (var_1_7 == ((unsigned char) 0)) : 1) : (var_1_7 == ((unsigned char) var_1_12)))) && (var_1_12 ? (((var_1_14 - var_1_15) >= ((var_1_8 + var_1_10) + var_1_9)) ? (var_1_13 == ((signed short int) ((((var_1_1) > (var_1_1)) ? (var_1_1) : (var_1_1))))) : (var_1_13 == ((signed short int) var_1_1))) : 1) ; VAL [\result=0, isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_12=1, var_1_13=32, var_1_1=32, var_1_7=0] [L90] RET, EXPR property() [L90] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_12=1, var_1_13=32, var_1_1=32, var_1_7=0] [L19] reach_error() VAL [isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_12=1, var_1_13=32, var_1_1=32, var_1_7=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.0s, OverallIterations: 4, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 255 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 255 mSDsluCounter, 657 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 490 mSDsCounter, 127 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 344 IncrementalHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 127 mSolverCounterUnsat, 167 mSDtfsCounter, 344 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 99 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=135occurred in iteration=3, InterpolantAutomatonStates: 27, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 40 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 326 NumberOfCodeBlocks, 326 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 210 ConstructedInterpolants, 0 QuantifiedInterpolants, 871 SizeOfPredicates, 0 NumberOfNonLiveVariables, 143 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 324/336 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 [2024-12-02 11:04:14,798 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/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_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-21.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1 --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 4557fd955b08b5fada9f3a6efa621afd9324a377fdc4d7b9e90703dc668aa740 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 11:04:16,754 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 11:04:16,831 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-12-02 11:04:16,836 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 11:04:16,837 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 11:04:16,859 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 11:04:16,860 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 11:04:16,860 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 11:04:16,860 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 11:04:16,861 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 11:04:16,861 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 11:04:16,861 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 11:04:16,861 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 11:04:16,861 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 11:04:16,861 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 11:04:16,861 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 11:04:16,862 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 11:04:16,862 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 11:04:16,862 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 11:04:16,862 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 11:04:16,862 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 11:04:16,862 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 11:04:16,862 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 11:04:16,862 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 11:04:16,862 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 11:04:16,862 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 11:04:16,862 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 11:04:16,863 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 11:04:16,863 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 11:04:16,863 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 11:04:16,863 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 11:04:16,863 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:04:16,863 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:04:16,863 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:04:16,863 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:04:16,863 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 11:04:16,863 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:04:16,863 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:04:16,864 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:04:16,864 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:04:16,864 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 11:04:16,864 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 11:04:16,864 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 11:04:16,864 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 11:04:16,864 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 11:04:16,864 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 11:04:16,864 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 11:04:16,864 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 11:04:16,865 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 11:04:16,865 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 11:04:16,865 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_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1 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 -> 4557fd955b08b5fada9f3a6efa621afd9324a377fdc4d7b9e90703dc668aa740 [2024-12-02 11:04:17,079 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 11:04:17,085 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 11:04:17,088 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 11:04:17,089 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 11:04:17,089 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 11:04:17,090 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-21.i [2024-12-02 11:04:19,746 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/data/d2b2f29d0/cb9b71db38d64f3aaca6c3b3fc2609d0/FLAG4301cff5e [2024-12-02 11:04:19,935 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 11:04:19,935 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-21.i [2024-12-02 11:04:19,944 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/data/d2b2f29d0/cb9b71db38d64f3aaca6c3b3fc2609d0/FLAG4301cff5e [2024-12-02 11:04:19,960 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/data/d2b2f29d0/cb9b71db38d64f3aaca6c3b3fc2609d0 [2024-12-02 11:04:19,963 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 11:04:19,964 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 11:04:19,966 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 11:04:19,966 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 11:04:19,971 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 11:04:19,972 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:04:19" (1/1) ... [2024-12-02 11:04:19,972 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40091eaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:04:19, skipping insertion in model container [2024-12-02 11:04:19,973 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:04:19" (1/1) ... [2024-12-02 11:04:19,990 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 11:04:20,137 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_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-21.i[917,930] [2024-12-02 11:04:20,177 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:04:20,190 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 11:04:20,201 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_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-21.i[917,930] [2024-12-02 11:04:20,219 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:04:20,235 INFO L204 MainTranslator]: Completed translation [2024-12-02 11:04:20,236 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:04:20 WrapperNode [2024-12-02 11:04:20,236 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 11:04:20,237 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 11:04:20,237 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 11:04:20,237 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 11:04:20,243 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:04:20" (1/1) ... [2024-12-02 11:04:20,251 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:04:20" (1/1) ... [2024-12-02 11:04:20,271 INFO L138 Inliner]: procedures = 27, calls = 20, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 84 [2024-12-02 11:04:20,271 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 11:04:20,272 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 11:04:20,272 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 11:04:20,272 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 11:04:20,281 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:04:20" (1/1) ... [2024-12-02 11:04:20,281 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:04:20" (1/1) ... [2024-12-02 11:04:20,284 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:04:20" (1/1) ... [2024-12-02 11:04:20,295 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]. [2024-12-02 11:04:20,296 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:04:20" (1/1) ... [2024-12-02 11:04:20,296 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:04:20" (1/1) ... [2024-12-02 11:04:20,303 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:04:20" (1/1) ... [2024-12-02 11:04:20,305 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:04:20" (1/1) ... [2024-12-02 11:04:20,308 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:04:20" (1/1) ... [2024-12-02 11:04:20,310 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:04:20" (1/1) ... [2024-12-02 11:04:20,311 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:04:20" (1/1) ... [2024-12-02 11:04:20,314 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 11:04:20,315 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 11:04:20,315 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 11:04:20,315 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 11:04:20,316 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:04:20" (1/1) ... [2024-12-02 11:04:20,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:04:20,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:04:20,340 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 11:04:20,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 11:04:20,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 11:04:20,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 11:04:20,367 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 11:04:20,367 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 11:04:20,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 11:04:20,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 11:04:20,433 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 11:04:20,435 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 11:04:28,106 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-12-02 11:04:28,106 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 11:04:28,120 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 11:04:28,120 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 11:04:28,120 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:04:28 BoogieIcfgContainer [2024-12-02 11:04:28,120 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 11:04:28,122 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 11:04:28,122 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 11:04:28,127 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 11:04:28,127 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 11:04:19" (1/3) ... [2024-12-02 11:04:28,128 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65e4469c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:04:28, skipping insertion in model container [2024-12-02 11:04:28,128 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:04:20" (2/3) ... [2024-12-02 11:04:28,128 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65e4469c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:04:28, skipping insertion in model container [2024-12-02 11:04:28,128 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:04:28" (3/3) ... [2024-12-02 11:04:28,129 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-21.i [2024-12-02 11:04:28,143 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 11:04:28,145 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_floatingpointinfluence_has-floats_file-21.i that has 2 procedures, 39 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 11:04:28,196 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 11:04:28,207 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;@4d1943e9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 11:04:28,208 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 11:04:28,212 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 29 states have (on average 1.4137931034482758) internal successors, (41), 30 states have internal predecessors, (41), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-12-02 11:04:28,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-12-02 11:04:28,220 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:04:28,221 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:04:28,222 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:04:28,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:04:28,228 INFO L85 PathProgramCache]: Analyzing trace with hash -510096507, now seen corresponding path program 1 times [2024-12-02 11:04:28,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:04:28,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [603281958] [2024-12-02 11:04:28,240 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:04:28,241 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 [2024-12-02 11:04:28,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:04:28,243 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 11:04:28,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 11:04:28,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:04:28,486 INFO L256 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 11:04:28,493 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:04:28,529 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-12-02 11:04:28,529 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:04:28,530 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:04:28,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [603281958] [2024-12-02 11:04:28,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [603281958] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:04:28,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:04:28,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 11:04:28,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576512787] [2024-12-02 11:04:28,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:04:28,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 11:04:28,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:04:28,560 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 11:04:28,560 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 11:04:28,562 INFO L87 Difference]: Start difference. First operand has 39 states, 29 states have (on average 1.4137931034482758) internal successors, (41), 30 states have internal predecessors, (41), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-12-02 11:04:28,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:04:28,578 INFO L93 Difference]: Finished difference Result 71 states and 111 transitions. [2024-12-02 11:04:28,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 11:04:28,579 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 53 [2024-12-02 11:04:28,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:04:28,584 INFO L225 Difference]: With dead ends: 71 [2024-12-02 11:04:28,584 INFO L226 Difference]: Without dead ends: 35 [2024-12-02 11:04:28,586 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 11:04:28,590 INFO L435 NwaCegarLoop]: 48 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, 48 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 [2024-12-02 11:04:28,591 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:04:28,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2024-12-02 11:04:28,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2024-12-02 11:04:28,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 26 states have internal predecessors, (34), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-12-02 11:04:28,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 48 transitions. [2024-12-02 11:04:28,628 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 48 transitions. Word has length 53 [2024-12-02 11:04:28,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:04:28,629 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 48 transitions. [2024-12-02 11:04:28,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-12-02 11:04:28,629 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 48 transitions. [2024-12-02 11:04:28,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-12-02 11:04:28,631 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:04:28,631 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:04:28,637 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 11:04:28,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 11:04:28,834 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:04:28,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:04:28,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1104841853, now seen corresponding path program 1 times [2024-12-02 11:04:28,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:04:28,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [193509082] [2024-12-02 11:04:28,835 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:04:28,835 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 [2024-12-02 11:04:28,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:04:28,837 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 11:04:28,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 11:04:28,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:04:28,978 INFO L256 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 11:04:28,982 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:04:29,370 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-12-02 11:04:29,370 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:04:29,371 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:04:29,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [193509082] [2024-12-02 11:04:29,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [193509082] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:04:29,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:04:29,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:04:29,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340758335] [2024-12-02 11:04:29,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:04:29,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:04:29,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:04:29,374 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:04:29,374 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:04:29,374 INFO L87 Difference]: Start difference. First operand 35 states and 48 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-12-02 11:04:32,277 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.76s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:04:35,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.02s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:04:38,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.90s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:04:40,472 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:04:40,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:04:40,473 INFO L93 Difference]: Finished difference Result 107 states and 147 transitions. [2024-12-02 11:04:40,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:04:40,492 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 53 [2024-12-02 11:04:40,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:04:40,494 INFO L225 Difference]: With dead ends: 107 [2024-12-02 11:04:40,494 INFO L226 Difference]: Without dead ends: 75 [2024-12-02 11:04:40,494 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:04:40,495 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 53 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:04:40,496 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 122 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 11.1s Time] [2024-12-02 11:04:40,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-12-02 11:04:40,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 63. [2024-12-02 11:04:40,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 46 states have (on average 1.2608695652173914) internal successors, (58), 46 states have internal predecessors, (58), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-12-02 11:04:40,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 86 transitions. [2024-12-02 11:04:40,510 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 86 transitions. Word has length 53 [2024-12-02 11:04:40,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:04:40,510 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 86 transitions. [2024-12-02 11:04:40,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-12-02 11:04:40,510 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 86 transitions. [2024-12-02 11:04:40,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-12-02 11:04:40,512 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:04:40,512 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:04:40,516 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-12-02 11:04:40,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 11:04:40,712 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:04:40,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:04:40,713 INFO L85 PathProgramCache]: Analyzing trace with hash 706987382, now seen corresponding path program 1 times [2024-12-02 11:04:40,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:04:40,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1847827666] [2024-12-02 11:04:40,713 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:04:40,714 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 [2024-12-02 11:04:40,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:04:40,715 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 11:04:40,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 11:04:40,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:04:40,836 INFO L256 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 11:04:40,838 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:04:41,022 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 48 proven. 9 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-12-02 11:04:41,023 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:04:41,344 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-12-02 11:04:41,344 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:04:41,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1847827666] [2024-12-02 11:04:41,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1847827666] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:04:41,344 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 11:04:41,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2024-12-02 11:04:41,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327372329] [2024-12-02 11:04:41,345 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 11:04:41,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:04:41,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:04:41,346 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:04:41,346 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:04:41,346 INFO L87 Difference]: Start difference. First operand 63 states and 86 transitions. Second operand has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 11:04:45,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.50s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:04:45,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:04:45,194 INFO L93 Difference]: Finished difference Result 125 states and 166 transitions. [2024-12-02 11:04:45,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 11:04:45,212 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 54 [2024-12-02 11:04:45,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:04:45,213 INFO L225 Difference]: With dead ends: 125 [2024-12-02 11:04:45,213 INFO L226 Difference]: Without dead ends: 65 [2024-12-02 11:04:45,213 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 100 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:04:45,214 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 26 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-12-02 11:04:45,215 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 93 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-12-02 11:04:45,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2024-12-02 11:04:45,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 64. [2024-12-02 11:04:45,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 45 states have (on average 1.1555555555555554) internal successors, (52), 45 states have internal predecessors, (52), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-12-02 11:04:45,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 80 transitions. [2024-12-02 11:04:45,224 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 80 transitions. Word has length 54 [2024-12-02 11:04:45,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:04:45,224 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 80 transitions. [2024-12-02 11:04:45,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 11:04:45,224 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 80 transitions. [2024-12-02 11:04:45,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-12-02 11:04:45,225 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:04:45,225 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:04:45,229 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/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)] Ended with exit code 0 [2024-12-02 11:04:45,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 11:04:45,426 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:04:45,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:04:45,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1443072449, now seen corresponding path program 1 times [2024-12-02 11:04:45,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:04:45,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [399244243] [2024-12-02 11:04:45,426 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:04:45,426 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 [2024-12-02 11:04:45,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:04:45,428 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 11:04:45,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/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 (5)] Waiting until timeout for monitored process [2024-12-02 11:04:45,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:04:45,680 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-02 11:04:45,682 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:06:31,059 WARN L286 SmtUtils]: Spent 5.28s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 11:06:40,512 WARN L286 SmtUtils]: Spent 5.32s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 11:06:44,703 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-12-02 11:06:44,704 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:06:44,704 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:06:44,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [399244243] [2024-12-02 11:06:44,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [399244243] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:06:44,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:06:44,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 11:06:44,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114474927] [2024-12-02 11:06:44,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:06:44,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 11:06:44,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:06:44,705 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 11:06:44,705 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-12-02 11:06:44,706 INFO L87 Difference]: Start difference. First operand 64 states and 80 transitions. Second operand has 8 states, 8 states have (on average 2.875) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-12-02 11:06:48,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.31s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:06:50,626 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:06:53,271 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.60s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:06:56,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.00s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:06:59,089 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.51s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:06:59,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:06:59,116 INFO L93 Difference]: Finished difference Result 116 states and 147 transitions. [2024-12-02 11:06:59,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 11:06:59,117 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 55 [2024-12-02 11:06:59,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:06:59,118 INFO L225 Difference]: With dead ends: 116 [2024-12-02 11:06:59,118 INFO L226 Difference]: Without dead ends: 80 [2024-12-02 11:06:59,118 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-12-02 11:06:59,119 INFO L435 NwaCegarLoop]: 40 mSDtfsCounter, 37 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.3s IncrementalHoareTripleChecker+Time [2024-12-02 11:06:59,119 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 217 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 14.3s Time] [2024-12-02 11:06:59,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-12-02 11:06:59,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 71. [2024-12-02 11:06:59,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 52 states have (on average 1.1730769230769231) internal successors, (61), 52 states have internal predecessors, (61), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-12-02 11:06:59,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 89 transitions. [2024-12-02 11:06:59,130 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 89 transitions. Word has length 55 [2024-12-02 11:06:59,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:06:59,130 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 89 transitions. [2024-12-02 11:06:59,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-12-02 11:06:59,131 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 89 transitions. [2024-12-02 11:06:59,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-12-02 11:06:59,131 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:06:59,131 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:06:59,140 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/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 (5)] Forceful destruction successful, exit code 0 [2024-12-02 11:06:59,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 11:06:59,332 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:06:59,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:06:59,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1551859698, now seen corresponding path program 1 times [2024-12-02 11:06:59,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:06:59,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [261698007] [2024-12-02 11:06:59,333 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:06:59,333 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 [2024-12-02 11:06:59,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:06:59,335 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 11:06:59,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/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 (6)] Waiting until timeout for monitored process [2024-12-02 11:06:59,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:06:59,569 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-02 11:06:59,572 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:09:27,115 WARN L286 SmtUtils]: Spent 6.08s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 11:09:32,396 WARN L286 SmtUtils]: Spent 5.22s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 11:09:39,328 WARN L286 SmtUtils]: Spent 6.87s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 11:09:54,673 WARN L286 SmtUtils]: Spent 5.57s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 11:10:01,877 WARN L286 SmtUtils]: Spent 5.53s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 11:10:07,775 WARN L286 SmtUtils]: Spent 5.90s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 11:10:18,815 WARN L286 SmtUtils]: Spent 6.12s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 11:10:23,935 WARN L286 SmtUtils]: Spent 5.10s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 11:10:26,661 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-12-02 11:10:26,661 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:10:26,661 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:10:26,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [261698007] [2024-12-02 11:10:26,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [261698007] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:10:26,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:10:26,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 11:10:26,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490774810] [2024-12-02 11:10:26,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:10:26,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 11:10:26,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:10:26,662 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 11:10:26,662 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-12-02 11:10:26,663 INFO L87 Difference]: Start difference. First operand 71 states and 89 transitions. Second operand has 8 states, 8 states have (on average 3.0) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-12-02 11:10:29,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.68s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:10:33,103 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.52s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:10:34,965 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:10:37,787 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.66s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:10:41,750 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.48s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:10:41,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:10:41,779 INFO L93 Difference]: Finished difference Result 78 states and 96 transitions. [2024-12-02 11:10:41,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 11:10:41,780 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 56 [2024-12-02 11:10:41,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:10:41,781 INFO L225 Difference]: With dead ends: 78 [2024-12-02 11:10:41,781 INFO L226 Difference]: Without dead ends: 76 [2024-12-02 11:10:41,781 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-12-02 11:10:41,781 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 24 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.8s IncrementalHoareTripleChecker+Time [2024-12-02 11:10:41,782 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 216 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 14.8s Time] [2024-12-02 11:10:41,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-12-02 11:10:41,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 71. [2024-12-02 11:10:41,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 52 states have (on average 1.1730769230769231) internal successors, (61), 52 states have internal predecessors, (61), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-12-02 11:10:41,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 89 transitions. [2024-12-02 11:10:41,788 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 89 transitions. Word has length 56 [2024-12-02 11:10:41,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:10:41,788 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 89 transitions. [2024-12-02 11:10:41,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-12-02 11:10:41,788 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 89 transitions. [2024-12-02 11:10:41,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-12-02 11:10:41,789 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:10:41,789 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:10:41,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/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 (6)] Forceful destruction successful, exit code 0 [2024-12-02 11:10:41,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 11:10:41,990 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:10:41,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:10:41,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1347078643, now seen corresponding path program 1 times [2024-12-02 11:10:41,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:10:41,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [634115318] [2024-12-02 11:10:41,991 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:10:41,991 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 [2024-12-02 11:10:41,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:10:41,992 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 11:10:41,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/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 (7)] Waiting until timeout for monitored process [2024-12-02 11:10:42,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:10:42,389 INFO L256 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 11:10:42,391 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:10:42,900 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 6 proven. 212 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-12-02 11:10:42,900 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:10:47,642 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 6 proven. 16 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 11:10:47,643 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:10:47,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [634115318] [2024-12-02 11:10:47,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [634115318] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:10:47,643 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 11:10:47,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 8 [2024-12-02 11:10:47,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683373712] [2024-12-02 11:10:47,643 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 11:10:47,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 11:10:47,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:10:47,644 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 11:10:47,644 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-12-02 11:10:47,645 INFO L87 Difference]: Start difference. First operand 71 states and 89 transitions. Second operand has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 4 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2024-12-02 11:10:50,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.40s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:10:54,449 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.46s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:10:56,526 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:10:59,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.79s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:11:03,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.90s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:11:05,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:11:05,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:11:05,384 INFO L93 Difference]: Finished difference Result 108 states and 136 transitions. [2024-12-02 11:11:05,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:11:05,384 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 4 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) Word has length 106 [2024-12-02 11:11:05,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:11:05,385 INFO L225 Difference]: With dead ends: 108 [2024-12-02 11:11:05,385 INFO L226 Difference]: Without dead ends: 72 [2024-12-02 11:11:05,386 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-12-02 11:11:05,386 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 84 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.3s IncrementalHoareTripleChecker+Time [2024-12-02 11:11:05,386 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 96 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 17.3s Time] [2024-12-02 11:11:05,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2024-12-02 11:11:05,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 70. [2024-12-02 11:11:05,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 51 states have (on average 1.1176470588235294) internal successors, (57), 51 states have internal predecessors, (57), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-12-02 11:11:05,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 85 transitions. [2024-12-02 11:11:05,394 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 85 transitions. Word has length 106 [2024-12-02 11:11:05,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:11:05,394 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 85 transitions. [2024-12-02 11:11:05,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 4 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2024-12-02 11:11:05,394 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 85 transitions. [2024-12-02 11:11:05,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-12-02 11:11:05,395 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:11:05,395 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:11:05,405 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/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 (7)] Ended with exit code 0 [2024-12-02 11:11:05,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 11:11:05,596 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:11:05,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:11:05,596 INFO L85 PathProgramCache]: Analyzing trace with hash 173404418, now seen corresponding path program 1 times [2024-12-02 11:11:05,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:11:05,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [285950102] [2024-12-02 11:11:05,597 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:11:05,597 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 [2024-12-02 11:11:05,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:11:05,598 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 11:11:05,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/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 (8)] Waiting until timeout for monitored process [2024-12-02 11:11:05,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:11:06,000 INFO L256 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-02 11:11:06,002 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:11:30,495 WARN L286 SmtUtils]: Spent 5.66s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 11:11:37,105 WARN L286 SmtUtils]: Spent 6.23s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 11:11:42,904 WARN L286 SmtUtils]: Spent 5.70s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 11:11:54,545 WARN L286 SmtUtils]: Spent 6.20s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 11:12:00,739 WARN L286 SmtUtils]: Spent 6.17s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 11:12:10,491 WARN L286 SmtUtils]: Spent 5.49s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 11:12:23,191 WARN L286 SmtUtils]: Spent 8.04s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 11:12:29,535 WARN L286 SmtUtils]: Spent 6.33s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 11:12:35,787 WARN L286 SmtUtils]: Spent 6.25s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 11:12:41,799 WARN L286 SmtUtils]: Spent 6.01s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 11:12:52,062 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 217 proven. 2 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-12-02 11:12:52,062 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:13:24,971 WARN L286 SmtUtils]: Spent 5.00s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 11:13:55,356 WARN L286 SmtUtils]: Spent 5.80s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 11:14:09,372 WARN L286 SmtUtils]: Spent 6.39s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 11:14:14,781 WARN L286 SmtUtils]: Spent 5.35s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 11:14:20,921 WARN L286 SmtUtils]: Spent 6.03s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 11:14:26,010 WARN L286 SmtUtils]: Spent 5.04s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 11:14:36,287 WARN L286 SmtUtils]: Spent 6.79s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 11:14:55,301 WARN L286 SmtUtils]: Spent 6.36s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 11:15:00,458 WARN L286 SmtUtils]: Spent 5.15s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 11:15:11,868 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse16 ((_ zero_extend 24) c_~var_1_7~0)) (.cse13 ((_ sign_extend 16) c_~last_1_var_1_13~0)) (.cse12 (= ((_ zero_extend 16) c_~var_1_1~0) ((_ zero_extend 16) c_~last_1_var_1_13~0)))) (let ((.cse17 (= (_ bv0 8) c_~var_1_12~0)) (.cse1 (forall ((~var_1_15~0 (_ FloatingPoint 8 24)) (~var_1_14~0 (_ FloatingPoint 8 24)) (currentRoundingMode RoundingMode)) (fp.geq ((_ to_fp 11 53) currentRoundingMode (fp.sub currentRoundingMode ~var_1_14~0 ~var_1_15~0)) (fp.add currentRoundingMode (fp.add currentRoundingMode c_~var_1_8~0 c_~var_1_10~0) c_~var_1_9~0)))) (.cse3 (forall ((~var_1_15~0 (_ FloatingPoint 8 24)) (~var_1_14~0 (_ FloatingPoint 8 24)) (currentRoundingMode RoundingMode)) (not (fp.geq ((_ to_fp 11 53) currentRoundingMode (fp.sub currentRoundingMode ~var_1_14~0 ~var_1_15~0)) (fp.add currentRoundingMode (fp.add currentRoundingMode c_~var_1_8~0 c_~var_1_10~0) c_~var_1_9~0))))) (.cse15 (or (not (bvslt .cse13 (bvadd .cse13 (bvneg .cse13)))) .cse12)) (.cse6 (or .cse12 (bvslt (bvmul .cse13 (_ bv2 32)) (bvmul .cse13 .cse13)))) (.cse5 (= (_ bv0 32) .cse16)) (.cse4 (= ((_ sign_extend 16) c_~var_1_13~0) ((_ sign_extend 16) c_~var_1_1~0)))) (and (or (let ((.cse9 (fp.lt c_~var_1_8~0 c_~var_1_9~0))) (let ((.cse0 (= ((_ zero_extend 24) c_~var_1_12~0) .cse16)) (.cse10 (fp.leq c_~var_1_8~0 c_~var_1_10~0)) (.cse11 (not .cse9)) (.cse7 (fp.leq c_~var_1_9~0 c_~var_1_10~0))) (and (or .cse0 (let ((.cse2 (let ((.cse8 (or .cse12 (not (bvslt .cse13 (_ bv0 32)))))) (and (or (and .cse5 .cse6 .cse7 .cse8) .cse9) (or (and .cse5 .cse6 .cse10 .cse8) .cse11))))) (and (or .cse1 .cse2) (or .cse3 .cse2) .cse4))) (or (not .cse0) (let ((.cse14 (and .cse15 .cse6 (or (not .cse10) .cse11) (not .cse7)))) (and (or .cse1 .cse14) (or .cse3 .cse14) .cse4)))))) .cse17) (or (not .cse17) (let ((.cse19 (not .cse4))) (and (or .cse5 (let ((.cse18 (and .cse1 .cse3))) (and (or .cse18 .cse4) (or .cse19 .cse18)))) (or (let ((.cse20 (let ((.cse21 (and .cse15 .cse6))) (and (or .cse21 .cse1) (or .cse21 .cse3))))) (and (or .cse20 .cse4) (or .cse19 .cse20))) (not .cse5)))))))) is different from true [2024-12-02 11:15:17,453 WARN L286 SmtUtils]: Spent 5.07s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 11:15:23,391 WARN L286 SmtUtils]: Spent 5.53s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 11:15:29,356 WARN L286 SmtUtils]: Spent 5.71s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 11:15:35,030 WARN L286 SmtUtils]: Spent 5.41s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 11:15:49,031 WARN L286 SmtUtils]: Spent 5.68s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 11:16:04,064 WARN L286 SmtUtils]: Spent 7.01s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 11:16:15,747 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 364 trivial. 1 not checked. [2024-12-02 11:16:15,747 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:16:15,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [285950102] [2024-12-02 11:16:15,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [285950102] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:16:15,747 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 11:16:15,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2024-12-02 11:16:15,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999751351] [2024-12-02 11:16:15,748 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 11:16:15,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 11:16:15,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:16:15,749 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 11:16:15,749 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=137, Unknown=1, NotChecked=24, Total=210 [2024-12-02 11:16:15,749 INFO L87 Difference]: Start difference. First operand 70 states and 85 transitions. Second operand has 15 states, 15 states have (on average 5.466666666666667) internal successors, (82), 15 states have internal predecessors, (82), 4 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2024-12-02 11:16:21,107 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:16:25,109 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:16:28,058 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.95s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:16:31,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.99s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:16:35,694 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse16 ((_ zero_extend 24) c_~var_1_7~0)) (.cse13 ((_ sign_extend 16) c_~last_1_var_1_13~0)) (.cse12 (= ((_ zero_extend 16) c_~var_1_1~0) ((_ zero_extend 16) c_~last_1_var_1_13~0)))) (let ((.cse17 (= (_ bv0 8) c_~var_1_12~0)) (.cse1 (forall ((~var_1_15~0 (_ FloatingPoint 8 24)) (~var_1_14~0 (_ FloatingPoint 8 24)) (currentRoundingMode RoundingMode)) (fp.geq ((_ to_fp 11 53) currentRoundingMode (fp.sub currentRoundingMode ~var_1_14~0 ~var_1_15~0)) (fp.add currentRoundingMode (fp.add currentRoundingMode c_~var_1_8~0 c_~var_1_10~0) c_~var_1_9~0)))) (.cse3 (forall ((~var_1_15~0 (_ FloatingPoint 8 24)) (~var_1_14~0 (_ FloatingPoint 8 24)) (currentRoundingMode RoundingMode)) (not (fp.geq ((_ to_fp 11 53) currentRoundingMode (fp.sub currentRoundingMode ~var_1_14~0 ~var_1_15~0)) (fp.add currentRoundingMode (fp.add currentRoundingMode c_~var_1_8~0 c_~var_1_10~0) c_~var_1_9~0))))) (.cse15 (or (not (bvslt .cse13 (bvadd .cse13 (bvneg .cse13)))) .cse12)) (.cse6 (or .cse12 (bvslt (bvmul .cse13 (_ bv2 32)) (bvmul .cse13 .cse13)))) (.cse5 (= (_ bv0 32) .cse16)) (.cse4 (= ((_ sign_extend 16) c_~var_1_13~0) ((_ sign_extend 16) c_~var_1_1~0)))) (and (or (let ((.cse9 (fp.lt c_~var_1_8~0 c_~var_1_9~0))) (let ((.cse0 (= ((_ zero_extend 24) c_~var_1_12~0) .cse16)) (.cse10 (fp.leq c_~var_1_8~0 c_~var_1_10~0)) (.cse11 (not .cse9)) (.cse7 (fp.leq c_~var_1_9~0 c_~var_1_10~0))) (and (or .cse0 (let ((.cse2 (let ((.cse8 (or .cse12 (not (bvslt .cse13 (_ bv0 32)))))) (and (or (and .cse5 .cse6 .cse7 .cse8) .cse9) (or (and .cse5 .cse6 .cse10 .cse8) .cse11))))) (and (or .cse1 .cse2) (or .cse3 .cse2) .cse4))) (or (not .cse0) (let ((.cse14 (and .cse15 .cse6 (or (not .cse10) .cse11) (not .cse7)))) (and (or .cse1 .cse14) (or .cse3 .cse14) .cse4)))))) .cse17) .cse15 .cse6 (or (not .cse17) (let ((.cse19 (not .cse4))) (and (or .cse5 (let ((.cse18 (and .cse1 .cse3))) (and (or .cse18 .cse4) (or .cse19 .cse18)))) (or (let ((.cse20 (let ((.cse21 (and .cse15 .cse6))) (and (or .cse21 .cse1) (or .cse21 .cse3))))) (and (or .cse20 .cse4) (or .cse19 .cse20))) (not .cse5))))) (= c_~var_1_1~0 (_ bv32 16)) (= c_~var_1_13~0 (_ bv32 16)) .cse4))) is different from true [2024-12-02 11:16:38,939 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.00s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:16:43,707 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:16:46,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.82s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:16:49,559 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.94s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:16:53,751 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse9 (fp.lt c_~var_1_8~0 c_~var_1_9~0))) (let ((.cse7 (fp.leq c_~var_1_9~0 c_~var_1_10~0)) (.cse18 ((_ zero_extend 24) c_~var_1_7~0)) (.cse13 ((_ sign_extend 16) c_~last_1_var_1_13~0)) (.cse12 (= ((_ zero_extend 16) c_~var_1_1~0) ((_ zero_extend 16) c_~last_1_var_1_13~0))) (.cse10 (fp.leq c_~var_1_8~0 c_~var_1_10~0)) (.cse11 (not .cse9))) (let ((.cse16 (or (not .cse10) .cse11)) (.cse19 (= (_ bv0 8) c_~var_1_12~0)) (.cse1 (forall ((~var_1_15~0 (_ FloatingPoint 8 24)) (~var_1_14~0 (_ FloatingPoint 8 24)) (currentRoundingMode RoundingMode)) (fp.geq ((_ to_fp 11 53) currentRoundingMode (fp.sub currentRoundingMode ~var_1_14~0 ~var_1_15~0)) (fp.add currentRoundingMode (fp.add currentRoundingMode c_~var_1_8~0 c_~var_1_10~0) c_~var_1_9~0)))) (.cse3 (forall ((~var_1_15~0 (_ FloatingPoint 8 24)) (~var_1_14~0 (_ FloatingPoint 8 24)) (currentRoundingMode RoundingMode)) (not (fp.geq ((_ to_fp 11 53) currentRoundingMode (fp.sub currentRoundingMode ~var_1_14~0 ~var_1_15~0)) (fp.add currentRoundingMode (fp.add currentRoundingMode c_~var_1_8~0 c_~var_1_10~0) c_~var_1_9~0))))) (.cse15 (or (not (bvslt .cse13 (bvadd .cse13 (bvneg .cse13)))) .cse12)) (.cse6 (or .cse12 (bvslt (bvmul .cse13 (_ bv2 32)) (bvmul .cse13 .cse13)))) (.cse5 (= (_ bv0 32) .cse18)) (.cse4 (= ((_ sign_extend 16) c_~var_1_13~0) ((_ sign_extend 16) c_~var_1_1~0))) (.cse17 (not .cse7))) (and (= c_~var_1_12~0 c_~var_1_7~0) (= c_~last_1_var_1_13~0 (_ bv32 16)) (or (let ((.cse0 (= ((_ zero_extend 24) c_~var_1_12~0) .cse18))) (and (or .cse0 (let ((.cse2 (let ((.cse8 (or .cse12 (not (bvslt .cse13 (_ bv0 32)))))) (and (or (and .cse5 .cse6 .cse7 .cse8) .cse9) (or (and .cse5 .cse6 .cse10 .cse8) .cse11))))) (and (or .cse1 .cse2) (or .cse3 .cse2) .cse4))) (or (not .cse0) (let ((.cse14 (and .cse15 .cse6 .cse16 .cse17))) (and (or .cse1 .cse14) (or .cse3 .cse14) .cse4))))) .cse19) .cse16 (or (not .cse19) (let ((.cse21 (not .cse4))) (and (or .cse5 (let ((.cse20 (and .cse1 .cse3))) (and (or .cse20 .cse4) (or .cse21 .cse20)))) (or (let ((.cse22 (let ((.cse23 (and .cse15 .cse6))) (and (or .cse23 .cse1) (or .cse23 .cse3))))) (and (or .cse22 .cse4) (or .cse21 .cse22))) (not .cse5))))) (= c_~var_1_1~0 (_ bv32 16)) .cse17 (= c_~var_1_13~0 (_ bv32 16)))))) is different from true [2024-12-02 11:16:57,341 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.34s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:16:57,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:16:57,589 INFO L93 Difference]: Finished difference Result 82 states and 97 transitions. [2024-12-02 11:16:57,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 11:16:57,589 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.466666666666667) internal successors, (82), 15 states have internal predecessors, (82), 4 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) Word has length 107 [2024-12-02 11:16:57,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:16:57,591 INFO L225 Difference]: With dead ends: 82 [2024-12-02 11:16:57,591 INFO L226 Difference]: Without dead ends: 80 [2024-12-02 11:16:57,592 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 17.3s TimeCoverageRelationStatistics Valid=97, Invalid=292, Unknown=3, NotChecked=114, Total=506 [2024-12-02 11:16:57,592 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 110 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 56 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 106 IncrementalHoareTripleChecker+Unchecked, 32.6s IncrementalHoareTripleChecker+Time [2024-12-02 11:16:57,593 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 316 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 195 Invalid, 3 Unknown, 106 Unchecked, 32.6s Time] [2024-12-02 11:16:57,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-12-02 11:16:57,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 70. [2024-12-02 11:16:57,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 51 states have (on average 1.1176470588235294) internal successors, (57), 51 states have internal predecessors, (57), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-12-02 11:16:57,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 85 transitions. [2024-12-02 11:16:57,607 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 85 transitions. Word has length 107 [2024-12-02 11:16:57,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:16:57,608 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 85 transitions. [2024-12-02 11:16:57,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.466666666666667) internal successors, (82), 15 states have internal predecessors, (82), 4 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2024-12-02 11:16:57,608 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 85 transitions. [2024-12-02 11:16:57,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-12-02 11:16:57,609 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:16:57,609 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:16:57,619 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/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 (8)] Forceful destruction successful, exit code 0 [2024-12-02 11:16:57,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 11:16:57,810 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:16:57,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:16:57,810 INFO L85 PathProgramCache]: Analyzing trace with hash 845009359, now seen corresponding path program 1 times [2024-12-02 11:16:57,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:16:57,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [761935422] [2024-12-02 11:16:57,811 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:16:57,811 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 [2024-12-02 11:16:57,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:16:57,812 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 11:16:57,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38d7effd-bed5-4ff7-afdc-c57081a7b0a7/bin/uautomizer-verify-84ZbGMXZE1/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 (9)] Waiting until timeout for monitored process [2024-12-02 11:16:58,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:16:58,214 INFO L256 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-02 11:16:58,216 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:17:22,748 WARN L286 SmtUtils]: Spent 6.64s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 11:17:30,158 WARN L286 SmtUtils]: Spent 6.81s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 11:17:37,648 WARN L286 SmtUtils]: Spent 6.98s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 11:17:45,024 WARN L286 SmtUtils]: Spent 6.64s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 11:17:53,814 WARN L286 SmtUtils]: Spent 8.04s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 11:18:01,880 WARN L286 SmtUtils]: Spent 8.04s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 11:18:09,335 WARN L286 SmtUtils]: Spent 7.45s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 11:18:16,397 WARN L286 SmtUtils]: Spent 7.03s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 11:18:20,154 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 217 proven. 2 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-12-02 11:18:20,154 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:18:47,772 WARN L286 SmtUtils]: Spent 6.89s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 11:19:13,638 WARN L286 SmtUtils]: Spent 5.04s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)