./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-78.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_ca95534d-a875-4724-ab63-0859aec91439/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca95534d-a875-4724-ab63-0859aec91439/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca95534d-a875-4724-ab63-0859aec91439/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca95534d-a875-4724-ab63-0859aec91439/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-78.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca95534d-a875-4724-ab63-0859aec91439/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca95534d-a875-4724-ab63-0859aec91439/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e9378820110475a355542652e61313eeb7cbd1a9ed890c41ec6fcefb7d91c4d3 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:53:06,776 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:53:06,860 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca95534d-a875-4724-ab63-0859aec91439/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 02:53:06,866 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:53:06,866 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:53:06,898 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:53:06,899 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:53:06,899 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:53:06,899 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:53:06,900 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:53:06,900 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:53:06,900 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:53:06,900 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:53:06,900 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:53:06,900 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:53:06,901 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:53:06,901 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:53:06,901 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:53:06,901 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:53:06,901 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:53:06,901 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:53:06,901 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:53:06,901 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:53:06,901 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:53:06,902 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:53:06,902 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:53:06,902 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:53:06,902 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:53:06,902 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:53:06,902 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:53:06,902 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:53:06,902 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:53:06,902 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:53:06,903 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:53:06,903 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:53:06,903 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:53:06,903 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:53:06,903 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:53:06,903 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:53:06,903 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:53:06,903 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:53:06,903 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:53:06,904 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:53:06,904 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:53:06,904 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:53:06,904 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:53:06,904 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:53:06,904 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:53:06,904 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_ca95534d-a875-4724-ab63-0859aec91439/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e9378820110475a355542652e61313eeb7cbd1a9ed890c41ec6fcefb7d91c4d3 [2024-11-28 02:53:07,201 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:53:07,210 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:53:07,213 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:53:07,214 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:53:07,214 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:53:07,216 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca95534d-a875-4724-ab63-0859aec91439/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-78.i [2024-11-28 02:53:10,284 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca95534d-a875-4724-ab63-0859aec91439/bin/uautomizer-verify-aQ6SnzHsRB/data/90c8978bb/42cc445ac4b747acad7f8c141d5ed740/FLAGc4902e3c8 [2024-11-28 02:53:10,619 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:53:10,620 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca95534d-a875-4724-ab63-0859aec91439/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-78.i [2024-11-28 02:53:10,640 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca95534d-a875-4724-ab63-0859aec91439/bin/uautomizer-verify-aQ6SnzHsRB/data/90c8978bb/42cc445ac4b747acad7f8c141d5ed740/FLAGc4902e3c8 [2024-11-28 02:53:10,662 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca95534d-a875-4724-ab63-0859aec91439/bin/uautomizer-verify-aQ6SnzHsRB/data/90c8978bb/42cc445ac4b747acad7f8c141d5ed740 [2024-11-28 02:53:10,666 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:53:10,668 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:53:10,671 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:53:10,672 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:53:10,682 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:53:10,683 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:53:10" (1/1) ... [2024-11-28 02:53:10,686 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dcc409a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:10, skipping insertion in model container [2024-11-28 02:53:10,686 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:53:10" (1/1) ... [2024-11-28 02:53:10,710 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:53:10,883 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_ca95534d-a875-4724-ab63-0859aec91439/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-78.i[917,930] [2024-11-28 02:53:10,950 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:53:10,964 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:53:10,977 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_ca95534d-a875-4724-ab63-0859aec91439/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-78.i[917,930] [2024-11-28 02:53:11,012 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:53:11,033 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:53:11,034 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:11 WrapperNode [2024-11-28 02:53:11,035 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:53:11,036 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:53:11,036 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:53:11,036 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:53:11,044 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:11" (1/1) ... [2024-11-28 02:53:11,056 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:11" (1/1) ... [2024-11-28 02:53:11,092 INFO L138 Inliner]: procedures = 26, calls = 23, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 92 [2024-11-28 02:53:11,097 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:53:11,097 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:53:11,097 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:53:11,097 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:53:11,113 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:11" (1/1) ... [2024-11-28 02:53:11,114 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:11" (1/1) ... [2024-11-28 02:53:11,116 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:11" (1/1) ... [2024-11-28 02:53:11,135 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 02:53:11,135 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:11" (1/1) ... [2024-11-28 02:53:11,135 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:11" (1/1) ... [2024-11-28 02:53:11,144 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:11" (1/1) ... [2024-11-28 02:53:11,145 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:11" (1/1) ... [2024-11-28 02:53:11,152 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:11" (1/1) ... [2024-11-28 02:53:11,153 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:11" (1/1) ... [2024-11-28 02:53:11,154 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:11" (1/1) ... [2024-11-28 02:53:11,162 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:53:11,163 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:53:11,163 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:53:11,163 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:53:11,164 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:11" (1/1) ... [2024-11-28 02:53:11,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:53:11,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca95534d-a875-4724-ab63-0859aec91439/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:53:11,200 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca95534d-a875-4724-ab63-0859aec91439/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:53:11,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca95534d-a875-4724-ab63-0859aec91439/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:53:11,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:53:11,229 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 02:53:11,229 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 02:53:11,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:53:11,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:53:11,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:53:11,322 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:53:11,325 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:53:11,610 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-28 02:53:11,611 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:53:11,621 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:53:11,621 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 02:53:11,622 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:53:11 BoogieIcfgContainer [2024-11-28 02:53:11,622 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:53:11,624 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:53:11,625 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:53:11,630 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:53:11,631 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:53:10" (1/3) ... [2024-11-28 02:53:11,632 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26076796 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:53:11, skipping insertion in model container [2024-11-28 02:53:11,632 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:11" (2/3) ... [2024-11-28 02:53:11,634 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26076796 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:53:11, skipping insertion in model container [2024-11-28 02:53:11,634 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:53:11" (3/3) ... [2024-11-28 02:53:11,635 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-78.i [2024-11-28 02:53:11,655 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:53:11,659 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_floatingpointinfluence_has-floats_file-78.i that has 2 procedures, 44 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 02:53:11,732 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:53:11,748 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;@44db83f2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:53:11,749 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 02:53:11,752 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 32 states have internal predecessors, (42), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-28 02:53:11,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-28 02:53:11,760 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:53:11,761 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:53:11,761 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:53:11,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:53:11,767 INFO L85 PathProgramCache]: Analyzing trace with hash 796298402, now seen corresponding path program 1 times [2024-11-28 02:53:11,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:53:11,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034161219] [2024-11-28 02:53:11,774 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:53:11,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:53:11,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:53:12,388 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-28 02:53:12,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:53:12,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034161219] [2024-11-28 02:53:12,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034161219] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:53:12,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:53:12,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:53:12,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684464270] [2024-11-28 02:53:12,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:53:12,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:53:12,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:53:12,419 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:53:12,420 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:53:12,422 INFO L87 Difference]: Start difference. First operand has 44 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 32 states have internal predecessors, (42), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-28 02:53:12,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:53:12,555 INFO L93 Difference]: Finished difference Result 118 states and 194 transitions. [2024-11-28 02:53:12,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:53:12,557 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 72 [2024-11-28 02:53:12,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:53:12,566 INFO L225 Difference]: With dead ends: 118 [2024-11-28 02:53:12,566 INFO L226 Difference]: Without dead ends: 77 [2024-11-28 02:53:12,571 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:53:12,576 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 25 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:53:12,577 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 146 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:53:12,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-11-28 02:53:12,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 74. [2024-11-28 02:53:12,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 51 states have (on average 1.2156862745098038) internal successors, (62), 51 states have internal predecessors, (62), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-28 02:53:12,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 102 transitions. [2024-11-28 02:53:12,660 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 102 transitions. Word has length 72 [2024-11-28 02:53:12,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:53:12,660 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 102 transitions. [2024-11-28 02:53:12,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-28 02:53:12,661 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 102 transitions. [2024-11-28 02:53:12,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-28 02:53:12,666 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:53:12,666 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:53:12,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 02:53:12,667 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:53:12,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:53:12,668 INFO L85 PathProgramCache]: Analyzing trace with hash 798145444, now seen corresponding path program 1 times [2024-11-28 02:53:12,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:53:12,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377366067] [2024-11-28 02:53:12,668 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:53:12,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:53:12,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:53:12,753 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:53:12,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:53:12,870 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 02:53:12,871 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 02:53:12,872 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 02:53:12,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 02:53:12,879 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-28 02:53:12,949 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 02:53:12,953 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:53:12 BoogieIcfgContainer [2024-11-28 02:53:12,953 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 02:53:12,954 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 02:53:12,954 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 02:53:12,954 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 02:53:12,955 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:53:11" (3/4) ... [2024-11-28 02:53:12,958 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-28 02:53:12,958 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 02:53:12,960 INFO L158 Benchmark]: Toolchain (without parser) took 2291.54ms. Allocated memory is still 142.6MB. Free memory was 101.1MB in the beginning and 80.2MB in the end (delta: 21.0MB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB. [2024-11-28 02:53:12,960 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 167.8MB. Free memory is still 104.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:53:12,960 INFO L158 Benchmark]: CACSL2BoogieTranslator took 364.69ms. Allocated memory is still 142.6MB. Free memory was 100.8MB in the beginning and 88.5MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:53:12,961 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.68ms. Allocated memory is still 142.6MB. Free memory was 88.5MB in the beginning and 86.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:53:12,961 INFO L158 Benchmark]: Boogie Preprocessor took 65.06ms. Allocated memory is still 142.6MB. Free memory was 86.8MB in the beginning and 84.7MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:53:12,961 INFO L158 Benchmark]: RCFGBuilder took 459.20ms. Allocated memory is still 142.6MB. Free memory was 84.7MB in the beginning and 70.7MB in the end (delta: 14.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:53:12,962 INFO L158 Benchmark]: TraceAbstraction took 1328.91ms. Allocated memory is still 142.6MB. Free memory was 70.1MB in the beginning and 80.2MB in the end (delta: -10.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:53:12,962 INFO L158 Benchmark]: Witness Printer took 4.68ms. Allocated memory is still 142.6MB. Free memory was 80.2MB in the beginning and 80.2MB in the end (delta: 36.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:53:12,964 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 167.8MB. Free memory is still 104.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 364.69ms. Allocated memory is still 142.6MB. Free memory was 100.8MB in the beginning and 88.5MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.68ms. Allocated memory is still 142.6MB. Free memory was 88.5MB in the beginning and 86.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 65.06ms. Allocated memory is still 142.6MB. Free memory was 86.8MB in the beginning and 84.7MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 459.20ms. Allocated memory is still 142.6MB. Free memory was 84.7MB in the beginning and 70.7MB in the end (delta: 14.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1328.91ms. Allocated memory is still 142.6MB. Free memory was 70.1MB in the beginning and 80.2MB in the end (delta: -10.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.68ms. Allocated memory is still 142.6MB. Free memory was 80.2MB in the beginning and 80.2MB in the end (delta: 36.9kB). 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 someBinaryArithmeticDOUBLEoperation at line 61, overapproximation of someBinaryFLOATComparisonOperation at line 74, overapproximation of someBinaryFLOATComparisonOperation at line 36, overapproximation of someBinaryFLOATComparisonOperation at line 72, overapproximation of someBinaryFLOATComparisonOperation at line 86, overapproximation of someBinaryDOUBLEComparisonOperation at line 78, overapproximation of someBinaryDOUBLEComparisonOperation at line 76, overapproximation of someBinaryDOUBLEComparisonOperation at line 86, overapproximation of someBinaryArithmeticFLOAToperation at line 49. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed long int var_1_1 = -200; [L23] unsigned char var_1_2 = 0; [L24] unsigned char var_1_3 = 1; [L25] float var_1_9 = 100.55; [L26] float var_1_10 = 4.75; [L27] float var_1_11 = 128.75; [L28] double var_1_12 = 128.5; [L29] double var_1_13 = 0.0; [L30] double var_1_14 = 127.875; [L31] unsigned char var_1_15 = 1; [L32] unsigned char var_1_16 = 16; VAL [isInitial=0, var_1_10=19/4, var_1_11=515/4, var_1_12=257/2, var_1_13=0, var_1_14=1023/8, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=0, var_1_3=1, var_1_9=2011/20] [L90] isInitial = 1 [L91] FCALL initially() [L93] FCALL updateLastVariables() [L94] CALL updateVariables() [L65] var_1_2 = __VERIFIER_nondet_uchar() [L66] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=19/4, var_1_11=515/4, var_1_12=257/2, var_1_13=0, var_1_14=1023/8, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_3=1, var_1_9=2011/20] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=19/4, var_1_11=515/4, var_1_12=257/2, var_1_13=0, var_1_14=1023/8, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_3=1, var_1_9=2011/20] [L66] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=19/4, var_1_11=515/4, var_1_12=257/2, var_1_13=0, var_1_14=1023/8, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_3=1, var_1_9=2011/20] [L67] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=19/4, var_1_11=515/4, var_1_12=257/2, var_1_13=0, var_1_14=1023/8, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=1, var_1_9=2011/20] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=19/4, var_1_11=515/4, var_1_12=257/2, var_1_13=0, var_1_14=1023/8, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=1, var_1_9=2011/20] [L67] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_10=19/4, var_1_11=515/4, var_1_12=257/2, var_1_13=0, var_1_14=1023/8, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=1, var_1_9=2011/20] [L68] var_1_3 = __VERIFIER_nondet_uchar() [L69] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=19/4, var_1_11=515/4, var_1_12=257/2, var_1_13=0, var_1_14=1023/8, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_9=2011/20] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=19/4, var_1_11=515/4, var_1_12=257/2, var_1_13=0, var_1_14=1023/8, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_9=2011/20] [L69] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_10=19/4, var_1_11=515/4, var_1_12=257/2, var_1_13=0, var_1_14=1023/8, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_9=2011/20] [L70] CALL assume_abort_if_not(var_1_3 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=19/4, var_1_11=515/4, var_1_12=257/2, var_1_13=0, var_1_14=1023/8, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=-256, var_1_9=2011/20] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=19/4, var_1_11=515/4, var_1_12=257/2, var_1_13=0, var_1_14=1023/8, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=-256, var_1_9=2011/20] [L70] RET assume_abort_if_not(var_1_3 <= 1) VAL [isInitial=1, var_1_10=19/4, var_1_11=515/4, var_1_12=257/2, var_1_13=0, var_1_14=1023/8, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=-256, var_1_9=2011/20] [L71] var_1_10 = __VERIFIER_nondet_float() [L72] CALL assume_abort_if_not((var_1_10 >= 0.0F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_11=515/4, var_1_12=257/2, var_1_13=0, var_1_14=1023/8, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=-256, var_1_9=2011/20] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=515/4, var_1_12=257/2, var_1_13=0, var_1_14=1023/8, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=-256, var_1_9=2011/20] [L72] RET assume_abort_if_not((var_1_10 >= 0.0F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, var_1_11=515/4, var_1_12=257/2, var_1_13=0, var_1_14=1023/8, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=-256, var_1_9=2011/20] [L73] var_1_11 = __VERIFIER_nondet_float() [L74] CALL assume_abort_if_not((var_1_11 >= 0.0F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854765600e+12F && var_1_11 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_12=257/2, var_1_13=0, var_1_14=1023/8, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=-256, var_1_9=2011/20] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_12=257/2, var_1_13=0, var_1_14=1023/8, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=-256, var_1_9=2011/20] [L74] RET assume_abort_if_not((var_1_11 >= 0.0F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854765600e+12F && var_1_11 >= 1.0e-20F )) VAL [isInitial=1, var_1_12=257/2, var_1_13=0, var_1_14=1023/8, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=-256, var_1_9=2011/20] [L75] var_1_13 = __VERIFIER_nondet_double() [L76] CALL assume_abort_if_not((var_1_13 >= 4611686.018427382800e+12F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_12=257/2, var_1_14=1023/8, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=-256, var_1_9=2011/20] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_12=257/2, var_1_14=1023/8, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=-256, var_1_9=2011/20] [L76] RET assume_abort_if_not((var_1_13 >= 4611686.018427382800e+12F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, var_1_12=257/2, var_1_14=1023/8, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=-256, var_1_9=2011/20] [L77] var_1_14 = __VERIFIER_nondet_double() [L78] CALL assume_abort_if_not((var_1_14 >= 0.0F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427382800e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_12=257/2, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=-256, var_1_9=2011/20] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_12=257/2, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=-256, var_1_9=2011/20] [L78] RET assume_abort_if_not((var_1_14 >= 0.0F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427382800e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, var_1_12=257/2, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=-256, var_1_9=2011/20] [L79] var_1_16 = __VERIFIER_nondet_uchar() [L80] CALL assume_abort_if_not(var_1_16 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_12=257/2, var_1_15=1, var_1_1=-200, var_1_2=1, var_1_3=-256, var_1_9=2011/20] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_12=257/2, var_1_15=1, var_1_1=-200, var_1_2=1, var_1_3=-256, var_1_9=2011/20] [L80] RET assume_abort_if_not(var_1_16 >= 0) VAL [isInitial=1, var_1_12=257/2, var_1_15=1, var_1_1=-200, var_1_2=1, var_1_3=-256, var_1_9=2011/20] [L81] CALL assume_abort_if_not(var_1_16 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_12=257/2, var_1_15=1, var_1_16=0, var_1_1=-200, var_1_2=1, var_1_3=-256, var_1_9=2011/20] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_12=257/2, var_1_15=1, var_1_16=0, var_1_1=-200, var_1_2=1, var_1_3=-256, var_1_9=2011/20] [L81] RET assume_abort_if_not(var_1_16 <= 254) VAL [isInitial=1, var_1_12=257/2, var_1_15=1, var_1_16=0, var_1_1=-200, var_1_2=1, var_1_3=-256, var_1_9=2011/20] [L94] RET updateVariables() [L95] CALL step() [L36] COND TRUE 0.8f > (- var_1_10) [L37] var_1_15 = var_1_16 VAL [isInitial=1, var_1_12=257/2, var_1_15=0, var_1_16=0, var_1_1=-200, var_1_2=1, var_1_3=-256, var_1_9=2011/20] [L39] unsigned char stepLocal_1 = var_1_15 > var_1_15; [L40] unsigned char stepLocal_0 = var_1_3; VAL [isInitial=1, stepLocal_0=-256, stepLocal_1=0, var_1_12=257/2, var_1_15=0, var_1_16=0, var_1_1=-200, var_1_2=1, var_1_3=-256, var_1_9=2011/20] [L41] COND FALSE !(var_1_2 && stepLocal_0) VAL [isInitial=1, stepLocal_1=0, var_1_12=257/2, var_1_15=0, var_1_16=0, var_1_1=-200, var_1_2=1, var_1_3=-256, var_1_9=2011/20] [L48] COND TRUE \read(var_1_2) [L49] var_1_9 = (var_1_10 - var_1_11) VAL [isInitial=1, stepLocal_1=0, var_1_12=257/2, var_1_15=0, var_1_16=0, var_1_1=-200, var_1_2=1, var_1_3=-256] [L57] signed long int stepLocal_2 = var_1_1; VAL [isInitial=1, stepLocal_1=0, stepLocal_2=-200, var_1_12=257/2, var_1_15=0, var_1_16=0, var_1_1=-200, var_1_2=1, var_1_3=-256] [L58] COND FALSE !(stepLocal_2 <= ((((8u) < 0 ) ? -(8u) : (8u)))) [L61] var_1_12 = ((var_1_13 - var_1_14) - var_1_11) VAL [isInitial=1, stepLocal_1=0, var_1_15=0, var_1_16=0, var_1_1=-200, var_1_2=1, var_1_3=-256] [L95] RET step() [L96] CALL, EXPR property() [L86-L87] return ((((var_1_2 && var_1_3) ? ((var_1_2 && (var_1_15 > var_1_15)) ? (var_1_1 == ((signed long int) (var_1_15 - var_1_15))) : (var_1_1 == ((signed long int) ((var_1_15 + 5) - var_1_15)))) : 1) && (var_1_2 ? (var_1_9 == ((float) (var_1_10 - var_1_11))) : ((var_1_1 < var_1_15) ? (var_1_9 == ((float) ((((var_1_11) > (var_1_10)) ? (var_1_11) : (var_1_10))))) : (var_1_9 == ((float) var_1_10))))) && ((var_1_1 <= ((((8u) < 0 ) ? -(8u) : (8u)))) ? (var_1_12 == ((double) (var_1_10 - 99.5))) : (var_1_12 == ((double) ((var_1_13 - var_1_14) - var_1_11))))) && ((0.8f > (- var_1_10)) ? (var_1_15 == ((unsigned char) var_1_16)) : 1) ; VAL [\result=0, isInitial=1, var_1_15=0, var_1_16=0, var_1_1=-200, var_1_2=1, var_1_3=-256] [L96] RET, EXPR property() [L96] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_15=0, var_1_16=0, var_1_1=-200, var_1_2=1, var_1_3=-256] [L19] reach_error() VAL [isInitial=1, var_1_15=0, var_1_16=0, var_1_1=-200, var_1_2=1, var_1_3=-256] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 44 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 10, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 25 mSDsluCounter, 146 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 95 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 16 IncrementalHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 51 mSDtfsCounter, 16 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred in iteration=1, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 144 NumberOfCodeBlocks, 144 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 71 ConstructedInterpolants, 0 QuantifiedInterpolants, 187 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 180/180 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-28 02:53:12,987 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca95534d-a875-4724-ab63-0859aec91439/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca95534d-a875-4724-ab63-0859aec91439/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca95534d-a875-4724-ab63-0859aec91439/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca95534d-a875-4724-ab63-0859aec91439/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca95534d-a875-4724-ab63-0859aec91439/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-78.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca95534d-a875-4724-ab63-0859aec91439/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca95534d-a875-4724-ab63-0859aec91439/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e9378820110475a355542652e61313eeb7cbd1a9ed890c41ec6fcefb7d91c4d3 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:53:15,745 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:53:15,885 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca95534d-a875-4724-ab63-0859aec91439/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-28 02:53:15,895 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:53:15,895 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:53:15,931 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:53:15,931 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:53:15,931 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:53:15,932 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:53:15,932 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:53:15,932 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:53:15,932 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:53:15,932 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:53:15,933 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:53:15,933 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:53:15,933 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:53:15,933 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:53:15,933 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:53:15,933 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:53:15,933 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:53:15,933 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:53:15,933 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:53:15,934 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:53:15,934 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 02:53:15,934 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 02:53:15,934 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 02:53:15,934 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:53:15,934 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:53:15,934 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:53:15,934 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:53:15,935 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:53:15,935 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:53:15,935 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:53:15,935 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:53:15,935 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:53:15,935 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:53:15,935 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:53:15,935 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:53:15,935 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:53:15,935 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:53:15,936 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:53:15,936 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:53:15,936 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:53:15,936 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:53:15,936 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 02:53:15,936 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 02:53:15,936 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:53:15,936 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:53:15,936 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:53:15,937 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:53:15,937 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_ca95534d-a875-4724-ab63-0859aec91439/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e9378820110475a355542652e61313eeb7cbd1a9ed890c41ec6fcefb7d91c4d3 [2024-11-28 02:53:16,271 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:53:16,284 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:53:16,286 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:53:16,288 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:53:16,288 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:53:16,289 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca95534d-a875-4724-ab63-0859aec91439/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-78.i [2024-11-28 02:53:19,501 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca95534d-a875-4724-ab63-0859aec91439/bin/uautomizer-verify-aQ6SnzHsRB/data/ba85ea5bd/429e369dbf0641af83d577c76d469e75/FLAGe26b688a2 [2024-11-28 02:53:19,781 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:53:19,782 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca95534d-a875-4724-ab63-0859aec91439/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-78.i [2024-11-28 02:53:19,790 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca95534d-a875-4724-ab63-0859aec91439/bin/uautomizer-verify-aQ6SnzHsRB/data/ba85ea5bd/429e369dbf0641af83d577c76d469e75/FLAGe26b688a2 [2024-11-28 02:53:19,805 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca95534d-a875-4724-ab63-0859aec91439/bin/uautomizer-verify-aQ6SnzHsRB/data/ba85ea5bd/429e369dbf0641af83d577c76d469e75 [2024-11-28 02:53:19,807 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:53:19,809 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:53:19,810 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:53:19,810 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:53:19,815 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:53:19,816 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:53:19" (1/1) ... [2024-11-28 02:53:19,817 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f3d550 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:19, skipping insertion in model container [2024-11-28 02:53:19,817 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:53:19" (1/1) ... [2024-11-28 02:53:19,834 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:53:19,990 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_ca95534d-a875-4724-ab63-0859aec91439/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-78.i[917,930] [2024-11-28 02:53:20,032 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:53:20,051 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:53:20,060 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_ca95534d-a875-4724-ab63-0859aec91439/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-78.i[917,930] [2024-11-28 02:53:20,089 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:53:20,107 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:53:20,108 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:20 WrapperNode [2024-11-28 02:53:20,108 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:53:20,109 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:53:20,109 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:53:20,109 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:53:20,115 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:20" (1/1) ... [2024-11-28 02:53:20,124 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:20" (1/1) ... [2024-11-28 02:53:20,145 INFO L138 Inliner]: procedures = 27, calls = 23, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 92 [2024-11-28 02:53:20,145 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:53:20,146 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:53:20,146 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:53:20,146 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:53:20,155 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:20" (1/1) ... [2024-11-28 02:53:20,156 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:20" (1/1) ... [2024-11-28 02:53:20,159 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:20" (1/1) ... [2024-11-28 02:53:20,169 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 02:53:20,170 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:20" (1/1) ... [2024-11-28 02:53:20,170 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:20" (1/1) ... [2024-11-28 02:53:20,178 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:20" (1/1) ... [2024-11-28 02:53:20,179 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:20" (1/1) ... [2024-11-28 02:53:20,182 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:20" (1/1) ... [2024-11-28 02:53:20,184 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:20" (1/1) ... [2024-11-28 02:53:20,185 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:20" (1/1) ... [2024-11-28 02:53:20,192 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:53:20,193 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:53:20,193 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:53:20,193 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:53:20,194 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:20" (1/1) ... [2024-11-28 02:53:20,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:53:20,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca95534d-a875-4724-ab63-0859aec91439/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:53:20,230 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca95534d-a875-4724-ab63-0859aec91439/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:53:20,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca95534d-a875-4724-ab63-0859aec91439/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:53:20,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:53:20,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 02:53:20,267 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 02:53:20,267 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 02:53:20,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:53:20,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:53:20,366 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:53:20,368 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:53:27,607 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-28 02:53:27,608 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:53:27,619 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:53:27,619 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 02:53:27,620 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:53:27 BoogieIcfgContainer [2024-11-28 02:53:27,620 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:53:27,623 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:53:27,623 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:53:27,629 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:53:27,629 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:53:19" (1/3) ... [2024-11-28 02:53:27,630 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1202d1f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:53:27, skipping insertion in model container [2024-11-28 02:53:27,630 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:20" (2/3) ... [2024-11-28 02:53:27,630 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1202d1f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:53:27, skipping insertion in model container [2024-11-28 02:53:27,630 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:53:27" (3/3) ... [2024-11-28 02:53:27,633 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-78.i [2024-11-28 02:53:27,649 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:53:27,650 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_floatingpointinfluence_has-floats_file-78.i that has 2 procedures, 44 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 02:53:27,718 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:53:27,729 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;@53c24394, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:53:27,729 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 02:53:27,733 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 32 states have internal predecessors, (42), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-28 02:53:27,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-28 02:53:27,742 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:53:27,743 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:53:27,743 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:53:27,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:53:27,748 INFO L85 PathProgramCache]: Analyzing trace with hash 796298402, now seen corresponding path program 1 times [2024-11-28 02:53:27,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:53:27,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [358581630] [2024-11-28 02:53:27,757 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:53:27,758 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 02:53:27,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca95534d-a875-4724-ab63-0859aec91439/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:53:27,760 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca95534d-a875-4724-ab63-0859aec91439/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 02:53:27,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca95534d-a875-4724-ab63-0859aec91439/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-28 02:53:28,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:53:28,172 INFO L256 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:53:28,179 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:53:28,997 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-28 02:53:28,997 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:53:28,998 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:53:28,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [358581630] [2024-11-28 02:53:28,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [358581630] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:53:28,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:53:28,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:53:29,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963371561] [2024-11-28 02:53:29,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:53:29,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:53:29,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:53:29,028 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:53:29,028 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:53:29,030 INFO L87 Difference]: Start difference. First operand has 44 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 32 states have internal predecessors, (42), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-28 02:53:31,928 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.81s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 02:53:36,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 02:53:40,634 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 02:53:45,028 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 02:53:48,041 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.01s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 02:53:48,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:53:48,049 INFO L93 Difference]: Finished difference Result 118 states and 194 transitions. [2024-11-28 02:53:48,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:53:48,076 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 72 [2024-11-28 02:53:48,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:53:48,083 INFO L225 Difference]: With dead ends: 118 [2024-11-28 02:53:48,084 INFO L226 Difference]: Without dead ends: 77 [2024-11-28 02:53:48,087 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:53:48,090 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 12 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.9s IncrementalHoareTripleChecker+Time [2024-11-28 02:53:48,091 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 147 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 3 Unknown, 0 Unchecked, 18.9s Time] [2024-11-28 02:53:48,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-11-28 02:53:48,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 74. [2024-11-28 02:53:48,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 51 states have (on average 1.2156862745098038) internal successors, (62), 51 states have internal predecessors, (62), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-28 02:53:48,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 102 transitions. [2024-11-28 02:53:48,153 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 102 transitions. Word has length 72 [2024-11-28 02:53:48,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:53:48,153 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 102 transitions. [2024-11-28 02:53:48,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-28 02:53:48,154 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 102 transitions. [2024-11-28 02:53:48,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-28 02:53:48,158 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:53:48,158 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:53:48,170 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca95534d-a875-4724-ab63-0859aec91439/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-28 02:53:48,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca95534d-a875-4724-ab63-0859aec91439/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 02:53:48,359 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:53:48,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:53:48,360 INFO L85 PathProgramCache]: Analyzing trace with hash 798145444, now seen corresponding path program 1 times [2024-11-28 02:53:48,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:53:48,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [121348689] [2024-11-28 02:53:48,360 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:53:48,360 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 02:53:48,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca95534d-a875-4724-ab63-0859aec91439/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:53:48,362 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca95534d-a875-4724-ab63-0859aec91439/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 02:53:48,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca95534d-a875-4724-ab63-0859aec91439/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-28 02:53:48,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:53:48,885 INFO L256 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-28 02:53:48,894 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:54:36,214 WARN L286 SmtUtils]: Spent 5.12s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:54:51,430 WARN L286 SmtUtils]: Spent 5.35s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:54:55,452 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0)))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode .cse2)) (.cse1 ((_ to_fp 8 24) c_currentRoundingMode 9223372036854765600.0))) (and (= c_~var_1_16~0 c_~var_1_15~0) (= (fp.sub c_currentRoundingMode c_~var_1_10~0 c_~var_1_11~0) c_~var_1_9~0) (fp.geq c_~var_1_14~0 .cse0) (fp.leq c_~var_1_11~0 .cse1) (fp.geq c_~var_1_11~0 .cse2) (= (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode c_~var_1_13~0 c_~var_1_14~0) ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_11~0)) c_~var_1_12~0) (= c_~var_1_3~0 (_ bv0 8)) (fp.leq c_~var_1_14~0 ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode 4611686018427382800.0))) (fp.geq c_~var_1_13~0 .cse0) (fp.leq c_~var_1_10~0 .cse1) (fp.geq c_~var_1_10~0 .cse2) (= (_ bv0 32) (bvadd (_ bv200 32) c_~var_1_1~0)) (fp.leq c_~var_1_13~0 ((_ to_fp 11 53) c_currentRoundingMode .cse1)) (not (= (_ bv0 8) c_~var_1_2~0)) (= c_currentRoundingMode roundNearestTiesToEven)))) is different from false