./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_0930.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_0930.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 d0cec7ddb8a2645a0ba1656999ba73d1a21b29e3fbe1129f436b67dd30c2f050 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 20:50:09,487 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 20:50:09,566 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 20:50:09,573 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 20:50:09,573 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 20:50:09,601 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 20:50:09,602 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 20:50:09,602 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 20:50:09,603 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 20:50:09,603 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 20:50:09,605 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 20:50:09,605 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 20:50:09,606 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 20:50:09,608 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 20:50:09,609 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 20:50:09,609 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 20:50:09,610 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 20:50:09,610 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 20:50:09,611 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 20:50:09,611 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 20:50:09,612 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 20:50:09,613 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 20:50:09,613 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 20:50:09,614 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 20:50:09,614 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 20:50:09,614 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 20:50:09,615 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 20:50:09,615 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 20:50:09,615 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 20:50:09,615 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 20:50:09,616 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 20:50:09,617 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 20:50:09,617 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 20:50:09,617 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 20:50:09,618 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 20:50:09,618 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 20:50:09,618 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 20:50:09,619 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 20:50:09,619 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 20:50:09,619 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 20:50:09,619 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 20:50:09,620 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 20:50:09,620 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d0cec7ddb8a2645a0ba1656999ba73d1a21b29e3fbe1129f436b67dd30c2f050 [2024-11-09 20:50:09,891 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 20:50:09,917 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 20:50:09,922 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 20:50:09,923 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 20:50:09,924 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 20:50:09,925 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0930.c [2024-11-09 20:50:11,407 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 20:50:11,590 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 20:50:11,591 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0930.c [2024-11-09 20:50:11,599 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9cb31729/d5a905d274754f3bbddec8a2c410e4a9/FLAGad25eca1f [2024-11-09 20:50:11,612 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9cb31729/d5a905d274754f3bbddec8a2c410e4a9 [2024-11-09 20:50:11,614 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 20:50:11,616 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 20:50:11,617 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 20:50:11,617 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 20:50:11,623 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 20:50:11,624 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:50:11" (1/1) ... [2024-11-09 20:50:11,625 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bfde5ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:50:11, skipping insertion in model container [2024-11-09 20:50:11,625 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:50:11" (1/1) ... [2024-11-09 20:50:11,651 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 20:50:11,859 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0930.c[3104,3117] [2024-11-09 20:50:11,867 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 20:50:11,878 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 20:50:11,954 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0930.c[3104,3117] [2024-11-09 20:50:11,963 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 20:50:12,022 INFO L204 MainTranslator]: Completed translation [2024-11-09 20:50:12,023 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:50:12 WrapperNode [2024-11-09 20:50:12,023 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 20:50:12,024 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 20:50:12,024 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 20:50:12,024 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 20:50:12,030 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:50:12" (1/1) ... [2024-11-09 20:50:12,044 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:50:12" (1/1) ... [2024-11-09 20:50:12,077 INFO L138 Inliner]: procedures = 17, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 190 [2024-11-09 20:50:12,080 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 20:50:12,081 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 20:50:12,081 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 20:50:12,081 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 20:50:12,091 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:50:12" (1/1) ... [2024-11-09 20:50:12,091 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:50:12" (1/1) ... [2024-11-09 20:50:12,096 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:50:12" (1/1) ... [2024-11-09 20:50:12,120 INFO L175 MemorySlicer]: Split 10 memory accesses to 5 slices as follows [2, 2, 2, 2, 2]. 20 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0]. The 4 writes are split as follows [0, 1, 1, 1, 1]. [2024-11-09 20:50:12,124 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:50:12" (1/1) ... [2024-11-09 20:50:12,124 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:50:12" (1/1) ... [2024-11-09 20:50:12,140 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:50:12" (1/1) ... [2024-11-09 20:50:12,141 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:50:12" (1/1) ... [2024-11-09 20:50:12,142 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:50:12" (1/1) ... [2024-11-09 20:50:12,148 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:50:12" (1/1) ... [2024-11-09 20:50:12,150 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 20:50:12,154 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 20:50:12,154 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 20:50:12,155 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 20:50:12,155 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:50:12" (1/1) ... [2024-11-09 20:50:12,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 20:50:12,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 20:50:12,190 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 20:50:12,192 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 20:50:12,237 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 20:50:12,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 20:50:12,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 20:50:12,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-09 20:50:12,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-09 20:50:12,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-09 20:50:12,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 20:50:12,239 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-09 20:50:12,239 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-09 20:50:12,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-09 20:50:12,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-09 20:50:12,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-09 20:50:12,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-09 20:50:12,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-09 20:50:12,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-09 20:50:12,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-09 20:50:12,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-09 20:50:12,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-09 20:50:12,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-09 20:50:12,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-09 20:50:12,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-09 20:50:12,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-09 20:50:12,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 20:50:12,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 20:50:12,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-09 20:50:12,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-09 20:50:12,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-09 20:50:12,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-09 20:50:12,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-09 20:50:12,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 20:50:12,360 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 20:50:12,361 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 20:50:12,614 INFO L? ?]: Removed 37 outVars from TransFormulas that were not future-live. [2024-11-09 20:50:12,614 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 20:50:12,647 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 20:50:12,648 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 20:50:12,648 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 08:50:12 BoogieIcfgContainer [2024-11-09 20:50:12,648 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 20:50:12,650 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 20:50:12,650 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 20:50:12,653 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 20:50:12,654 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 08:50:11" (1/3) ... [2024-11-09 20:50:12,654 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@556c25b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:50:12, skipping insertion in model container [2024-11-09 20:50:12,654 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:50:12" (2/3) ... [2024-11-09 20:50:12,655 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@556c25b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:50:12, skipping insertion in model container [2024-11-09 20:50:12,655 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 08:50:12" (3/3) ... [2024-11-09 20:50:12,656 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0930.c [2024-11-09 20:50:12,668 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 20:50:12,669 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 20:50:12,719 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 20:50:12,725 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;@7d9bae16, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 20:50:12,725 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 20:50:12,729 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 49 states have (on average 1.6326530612244898) internal successors, (80), 50 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:50:12,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-09 20:50:12,735 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 20:50:12,735 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 20:50:12,736 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 20:50:12,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 20:50:12,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1448757600, now seen corresponding path program 1 times [2024-11-09 20:50:12,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 20:50:12,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494829157] [2024-11-09 20:50:12,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 20:50:12,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 20:50:12,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 20:50:12,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 20:50:12,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 20:50:12,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494829157] [2024-11-09 20:50:12,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494829157] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 20:50:12,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 20:50:12,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 20:50:12,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910465101] [2024-11-09 20:50:12,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 20:50:12,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 20:50:12,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 20:50:12,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 20:50:12,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 20:50:12,918 INFO L87 Difference]: Start difference. First operand has 51 states, 49 states have (on average 1.6326530612244898) internal successors, (80), 50 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:50:12,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 20:50:12,945 INFO L93 Difference]: Finished difference Result 99 states and 157 transitions. [2024-11-09 20:50:12,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 20:50:12,948 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-09 20:50:12,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 20:50:12,956 INFO L225 Difference]: With dead ends: 99 [2024-11-09 20:50:12,956 INFO L226 Difference]: Without dead ends: 47 [2024-11-09 20:50:12,959 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 20:50:12,962 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 20:50:12,963 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 65 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 20:50:12,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2024-11-09 20:50:12,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2024-11-09 20:50:12,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 46 states have (on average 1.434782608695652) internal successors, (66), 46 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:50:12,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 66 transitions. [2024-11-09 20:50:12,990 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 66 transitions. Word has length 9 [2024-11-09 20:50:12,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 20:50:12,990 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 66 transitions. [2024-11-09 20:50:12,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:50:12,991 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 66 transitions. [2024-11-09 20:50:12,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-09 20:50:12,991 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 20:50:12,991 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 20:50:12,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 20:50:12,992 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 20:50:12,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 20:50:12,992 INFO L85 PathProgramCache]: Analyzing trace with hash 1233068762, now seen corresponding path program 1 times [2024-11-09 20:50:12,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 20:50:12,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029191708] [2024-11-09 20:50:12,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 20:50:12,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 20:50:13,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 20:50:13,045 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 20:50:13,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 20:50:13,098 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 20:50:13,098 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 20:50:13,100 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 20:50:13,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 20:50:13,105 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-09 20:50:13,123 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 20:50:13,126 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 08:50:13 BoogieIcfgContainer [2024-11-09 20:50:13,126 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 20:50:13,127 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 20:50:13,127 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 20:50:13,127 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 20:50:13,129 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 08:50:12" (3/4) ... [2024-11-09 20:50:13,130 INFO L146 WitnessPrinter]: No result that supports witness generation found [2024-11-09 20:50:13,131 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 20:50:13,132 INFO L158 Benchmark]: Toolchain (without parser) took 1516.28ms. Allocated memory is still 163.6MB. Free memory was 93.6MB in the beginning and 77.0MB in the end (delta: 16.7MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. [2024-11-09 20:50:13,132 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 163.6MB. Free memory is still 120.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 20:50:13,133 INFO L158 Benchmark]: CACSL2BoogieTranslator took 406.62ms. Allocated memory is still 163.6MB. Free memory was 93.4MB in the beginning and 132.8MB in the end (delta: -39.3MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. [2024-11-09 20:50:13,134 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.12ms. Allocated memory is still 163.6MB. Free memory was 132.8MB in the beginning and 130.7MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 20:50:13,134 INFO L158 Benchmark]: Boogie Preprocessor took 69.49ms. Allocated memory is still 163.6MB. Free memory was 130.7MB in the beginning and 128.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 20:50:13,134 INFO L158 Benchmark]: IcfgBuilder took 493.86ms. Allocated memory is still 163.6MB. Free memory was 128.1MB in the beginning and 106.3MB in the end (delta: 21.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-09 20:50:13,135 INFO L158 Benchmark]: TraceAbstraction took 476.11ms. Allocated memory is still 163.6MB. Free memory was 106.3MB in the beginning and 77.8MB in the end (delta: 28.5MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-11-09 20:50:13,135 INFO L158 Benchmark]: Witness Printer took 4.55ms. Allocated memory is still 163.6MB. Free memory was 77.8MB in the beginning and 77.0MB in the end (delta: 819.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 20:50:13,138 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 163.6MB. Free memory is still 120.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 406.62ms. Allocated memory is still 163.6MB. Free memory was 93.4MB in the beginning and 132.8MB in the end (delta: -39.3MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.12ms. Allocated memory is still 163.6MB. Free memory was 132.8MB in the beginning and 130.7MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 69.49ms. Allocated memory is still 163.6MB. Free memory was 130.7MB in the beginning and 128.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 493.86ms. Allocated memory is still 163.6MB. Free memory was 128.1MB in the beginning and 106.3MB in the end (delta: 21.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 476.11ms. Allocated memory is still 163.6MB. Free memory was 106.3MB in the beginning and 77.8MB in the end (delta: 28.5MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 4.55ms. Allocated memory is still 163.6MB. Free memory was 77.8MB in the beginning and 77.0MB in the end (delta: 819.8kB). Peak memory consumption was 2.1MB. 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: 123]: 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 122, overapproximation of someBinaryArithmeticFLOAToperation at line 34. Possible FailurePath: [L14-L18] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L20] static const float zero_log = 0.0; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L118] float x = 1.0f; [L119] CALL, EXPR __ieee754_logf(x) [L23] float hfsq, f, s, z, R, w, t1, t2, dk; [L24] __int32_t k, ix, i, j; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=1, zero_log=0] [L27] ieee_float_shape_type gf_u; [L28] gf_u.value = (x) [L29] EXPR gf_u.word [L29] (ix) = gf_u.word [L30] COND FALSE !(0) VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ix=-2147483648, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=1, zero_log=0] [L32] k = 0 VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ix=-2147483648, k=0, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=1, zero_log=0] [L33] COND TRUE ((ix & 0x7fffffff) == 0) [L34] return -two25_log / zero_log; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, k=0, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=1, zero_log=0] [L119] RET, EXPR __ieee754_logf(x) [L119] float res = __ieee754_logf(x); [L122] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, res=2147483657, two25_log=33554432, zero_log=0] [L122] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L122] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L123] reach_error() VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, res=2147483657, two25_log=33554432, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 51 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 65 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 65 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-09 20:50:13,167 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_0930.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 d0cec7ddb8a2645a0ba1656999ba73d1a21b29e3fbe1129f436b67dd30c2f050 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 20:50:15,283 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 20:50:15,370 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-09 20:50:15,377 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 20:50:15,378 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 20:50:15,405 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 20:50:15,409 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 20:50:15,409 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 20:50:15,410 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 20:50:15,410 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 20:50:15,410 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 20:50:15,410 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 20:50:15,411 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 20:50:15,411 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 20:50:15,412 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 20:50:15,412 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 20:50:15,414 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 20:50:15,417 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 20:50:15,417 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 20:50:15,417 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 20:50:15,417 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 20:50:15,419 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 20:50:15,419 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 20:50:15,419 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 20:50:15,420 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 20:50:15,420 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 20:50:15,420 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 20:50:15,420 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 20:50:15,421 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 20:50:15,421 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 20:50:15,421 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 20:50:15,421 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 20:50:15,422 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 20:50:15,422 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 20:50:15,422 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 20:50:15,423 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 20:50:15,423 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 20:50:15,423 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 20:50:15,423 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-09 20:50:15,423 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 20:50:15,423 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 20:50:15,424 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 20:50:15,424 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 20:50:15,424 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 20:50:15,424 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d0cec7ddb8a2645a0ba1656999ba73d1a21b29e3fbe1129f436b67dd30c2f050 [2024-11-09 20:50:15,727 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 20:50:15,749 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 20:50:15,754 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 20:50:15,755 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 20:50:15,755 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 20:50:15,756 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0930.c [2024-11-09 20:50:17,227 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 20:50:17,433 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 20:50:17,435 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0930.c [2024-11-09 20:50:17,448 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7161f2eed/c227e4e3a1224e7db030c3c2fb93ccd2/FLAG8ac1dc9ad [2024-11-09 20:50:17,464 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7161f2eed/c227e4e3a1224e7db030c3c2fb93ccd2 [2024-11-09 20:50:17,469 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 20:50:17,471 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 20:50:17,473 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 20:50:17,474 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 20:50:17,480 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 20:50:17,480 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:50:17" (1/1) ... [2024-11-09 20:50:17,481 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11b8b6b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:50:17, skipping insertion in model container [2024-11-09 20:50:17,482 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:50:17" (1/1) ... [2024-11-09 20:50:17,509 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 20:50:17,755 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0930.c[3104,3117] [2024-11-09 20:50:17,762 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 20:50:17,783 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 20:50:17,827 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0930.c[3104,3117] [2024-11-09 20:50:17,832 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 20:50:17,852 INFO L204 MainTranslator]: Completed translation [2024-11-09 20:50:17,852 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:50:17 WrapperNode [2024-11-09 20:50:17,852 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 20:50:17,853 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 20:50:17,854 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 20:50:17,854 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 20:50:17,860 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:50:17" (1/1) ... [2024-11-09 20:50:17,879 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:50:17" (1/1) ... [2024-11-09 20:50:17,908 INFO L138 Inliner]: procedures = 20, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 156 [2024-11-09 20:50:17,912 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 20:50:17,913 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 20:50:17,913 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 20:50:17,913 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 20:50:17,923 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:50:17" (1/1) ... [2024-11-09 20:50:17,923 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:50:17" (1/1) ... [2024-11-09 20:50:17,930 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:50:17" (1/1) ... [2024-11-09 20:50:17,951 INFO L175 MemorySlicer]: Split 10 memory accesses to 5 slices as follows [2, 2, 2, 2, 2]. 20 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0]. The 4 writes are split as follows [0, 1, 1, 1, 1]. [2024-11-09 20:50:17,955 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:50:17" (1/1) ... [2024-11-09 20:50:17,955 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:50:17" (1/1) ... [2024-11-09 20:50:17,971 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:50:17" (1/1) ... [2024-11-09 20:50:17,975 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:50:17" (1/1) ... [2024-11-09 20:50:17,978 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:50:17" (1/1) ... [2024-11-09 20:50:17,980 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:50:17" (1/1) ... [2024-11-09 20:50:17,987 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 20:50:17,989 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 20:50:17,989 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 20:50:17,989 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 20:50:17,993 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:50:17" (1/1) ... [2024-11-09 20:50:17,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 20:50:18,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 20:50:18,026 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 20:50:18,032 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 20:50:18,071 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 20:50:18,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-09 20:50:18,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-09 20:50:18,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-09 20:50:18,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-09 20:50:18,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-09 20:50:18,072 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 20:50:18,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-09 20:50:18,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-09 20:50:18,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-11-09 20:50:18,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-11-09 20:50:18,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2024-11-09 20:50:18,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-09 20:50:18,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-09 20:50:18,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-09 20:50:18,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-09 20:50:18,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-09 20:50:18,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 20:50:18,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 20:50:18,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-09 20:50:18,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-09 20:50:18,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-11-09 20:50:18,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-11-09 20:50:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2024-11-09 20:50:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-09 20:50:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-09 20:50:18,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-09 20:50:18,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-09 20:50:18,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-11-09 20:50:18,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 20:50:18,196 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 20:50:18,198 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 20:50:46,617 INFO L? ?]: Removed 58 outVars from TransFormulas that were not future-live. [2024-11-09 20:50:46,618 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 20:50:46,635 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 20:50:46,635 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 20:50:46,636 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 08:50:46 BoogieIcfgContainer [2024-11-09 20:50:46,637 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 20:50:46,639 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 20:50:46,639 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 20:50:46,646 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 20:50:46,646 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 08:50:17" (1/3) ... [2024-11-09 20:50:46,647 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@370a05b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:50:46, skipping insertion in model container [2024-11-09 20:50:46,647 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:50:17" (2/3) ... [2024-11-09 20:50:46,647 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@370a05b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:50:46, skipping insertion in model container [2024-11-09 20:50:46,647 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 08:50:46" (3/3) ... [2024-11-09 20:50:46,648 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0930.c [2024-11-09 20:50:46,666 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 20:50:46,667 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 20:50:46,729 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 20:50:46,736 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;@57c1434d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 20:50:46,737 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 20:50:46,741 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 33 states have (on average 1.6666666666666667) internal successors, (55), 34 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:50:46,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-09 20:50:46,746 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 20:50:46,747 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 20:50:46,747 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 20:50:46,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 20:50:46,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1796360445, now seen corresponding path program 1 times [2024-11-09 20:50:46,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 20:50:46,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [195230009] [2024-11-09 20:50:46,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 20:50:46,761 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 [2024-11-09 20:50:46,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 20:50:46,764 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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) [2024-11-09 20:50:46,778 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-09 20:50:47,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 20:50:47,226 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 20:50:47,230 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 20:50:47,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 20:50:47,247 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 20:50:47,247 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-09 20:50:47,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [195230009] [2024-11-09 20:50:47,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [195230009] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 20:50:47,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 20:50:47,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 20:50:47,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065624777] [2024-11-09 20:50:47,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 20:50:47,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 20:50:47,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-09 20:50:47,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 20:50:47,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 20:50:47,284 INFO L87 Difference]: Start difference. First operand has 35 states, 33 states have (on average 1.6666666666666667) internal successors, (55), 34 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:50:47,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 20:50:47,302 INFO L93 Difference]: Finished difference Result 67 states and 107 transitions. [2024-11-09 20:50:47,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 20:50:47,304 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-09 20:50:47,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 20:50:47,311 INFO L225 Difference]: With dead ends: 67 [2024-11-09 20:50:47,311 INFO L226 Difference]: Without dead ends: 31 [2024-11-09 20:50:47,313 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 20:50:47,318 INFO L432 NwaCegarLoop]: 45 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, 45 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 20:50:47,319 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 20:50:47,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2024-11-09 20:50:47,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2024-11-09 20:50:47,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.4) internal successors, (42), 30 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:50:47,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 42 transitions. [2024-11-09 20:50:47,345 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 42 transitions. Word has length 9 [2024-11-09 20:50:47,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 20:50:47,346 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 42 transitions. [2024-11-09 20:50:47,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:50:47,346 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 42 transitions. [2024-11-09 20:50:47,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-09 20:50:47,347 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 20:50:47,347 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 20:50:47,364 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-09 20:50:47,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-09 20:50:47,548 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 20:50:47,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 20:50:47,549 INFO L85 PathProgramCache]: Analyzing trace with hash -608124934, now seen corresponding path program 1 times [2024-11-09 20:50:47,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 20:50:47,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1079601989] [2024-11-09 20:50:47,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 20:50:47,550 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 [2024-11-09 20:50:47,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 20:50:47,553 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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) [2024-11-09 20:50:47,566 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-09 20:50:47,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 20:50:48,002 INFO L255 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 20:50:48,005 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 20:50:48,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 20:50:48,353 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 20:50:48,353 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-09 20:50:48,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1079601989] [2024-11-09 20:50:48,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1079601989] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 20:50:48,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 20:50:48,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 20:50:48,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275568855] [2024-11-09 20:50:48,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 20:50:48,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 20:50:48,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-09 20:50:48,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 20:50:48,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 20:50:48,357 INFO L87 Difference]: Start difference. First operand 31 states and 42 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:50:53,053 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.27s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 20:50:53,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 20:50:53,184 INFO L93 Difference]: Finished difference Result 51 states and 69 transitions. [2024-11-09 20:50:53,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 20:50:53,185 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-11-09 20:50:53,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 20:50:53,186 INFO L225 Difference]: With dead ends: 51 [2024-11-09 20:50:53,186 INFO L226 Difference]: Without dead ends: 29 [2024-11-09 20:50:53,186 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 20:50:53,188 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 12 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-09 20:50:53,188 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 77 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2024-11-09 20:50:53,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2024-11-09 20:50:53,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2024-11-09 20:50:53,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 28 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:50:53,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 36 transitions. [2024-11-09 20:50:53,193 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 36 transitions. Word has length 10 [2024-11-09 20:50:53,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 20:50:53,193 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 36 transitions. [2024-11-09 20:50:53,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:50:53,194 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 36 transitions. [2024-11-09 20:50:53,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-09 20:50:53,197 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 20:50:53,198 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 20:50:53,214 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-09 20:50:53,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-09 20:50:53,400 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 20:50:53,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 20:50:53,400 INFO L85 PathProgramCache]: Analyzing trace with hash -51864374, now seen corresponding path program 1 times [2024-11-09 20:50:53,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 20:50:53,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2026698798] [2024-11-09 20:50:53,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 20:50:53,401 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 [2024-11-09 20:50:53,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 20:50:53,403 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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) [2024-11-09 20:50:53,404 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-09 20:50:53,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 20:50:53,722 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 20:50:53,724 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 20:50:54,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 20:50:54,569 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 20:50:54,569 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-09 20:50:54,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2026698798] [2024-11-09 20:50:54,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2026698798] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 20:50:54,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 20:50:54,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 20:50:54,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134430196] [2024-11-09 20:50:54,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 20:50:54,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 20:50:54,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-09 20:50:54,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 20:50:54,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 20:50:54,572 INFO L87 Difference]: Start difference. First operand 29 states and 36 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:50:57,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.97s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 20:51:01,982 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 20:51:06,185 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 20:51:10,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 20:51:14,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 20:51:15,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 20:51:19,702 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 20:51:19,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 20:51:19,941 INFO L93 Difference]: Finished difference Result 34 states and 41 transitions. [2024-11-09 20:51:19,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 20:51:19,942 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2024-11-09 20:51:19,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 20:51:19,943 INFO L225 Difference]: With dead ends: 34 [2024-11-09 20:51:19,943 INFO L226 Difference]: Without dead ends: 31 [2024-11-09 20:51:19,943 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-09 20:51:19,945 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 23 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.2s IncrementalHoareTripleChecker+Time [2024-11-09 20:51:19,945 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 81 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 5 Unknown, 0 Unchecked, 25.2s Time] [2024-11-09 20:51:19,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2024-11-09 20:51:19,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2024-11-09 20:51:19,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 30 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:51:19,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2024-11-09 20:51:19,952 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 38 transitions. Word has length 20 [2024-11-09 20:51:19,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 20:51:19,952 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 38 transitions. [2024-11-09 20:51:19,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:51:19,952 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2024-11-09 20:51:19,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-09 20:51:19,953 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 20:51:19,953 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 20:51:19,967 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-09 20:51:20,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-09 20:51:20,155 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 20:51:20,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 20:51:20,155 INFO L85 PathProgramCache]: Analyzing trace with hash -50017332, now seen corresponding path program 1 times [2024-11-09 20:51:20,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 20:51:20,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [620611888] [2024-11-09 20:51:20,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 20:51:20,156 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 [2024-11-09 20:51:20,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 20:51:20,159 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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) [2024-11-09 20:51:20,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-09 20:51:20,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 20:51:20,574 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 20:51:20,576 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 20:51:20,715 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-09 20:51:20,742 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-09 20:51:22,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 20:51:22,229 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 20:51:22,229 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-09 20:51:22,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [620611888] [2024-11-09 20:51:22,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [620611888] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 20:51:22,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 20:51:22,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 20:51:22,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906533683] [2024-11-09 20:51:22,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 20:51:22,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 20:51:22,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-09 20:51:22,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 20:51:22,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-09 20:51:22,231 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. Second operand has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:51:27,434 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.33s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 20:51:31,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 20:51:35,444 WARN L539 Checker$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 [0] [2024-11-09 20:51:39,447 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 20:51:43,453 WARN L539 Checker$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 [0] [2024-11-09 20:51:48,353 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.63s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 20:51:50,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 20:51:50,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 20:51:50,806 INFO L93 Difference]: Finished difference Result 40 states and 47 transitions. [2024-11-09 20:51:50,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 20:51:50,807 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2024-11-09 20:51:50,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 20:51:50,808 INFO L225 Difference]: With dead ends: 40 [2024-11-09 20:51:50,808 INFO L226 Difference]: Without dead ends: 31 [2024-11-09 20:51:50,808 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-09 20:51:50,809 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 12 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 3 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.1s IncrementalHoareTripleChecker+Time [2024-11-09 20:51:50,809 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 71 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 51 Invalid, 5 Unknown, 0 Unchecked, 28.1s Time] [2024-11-09 20:51:50,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2024-11-09 20:51:50,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2024-11-09 20:51:50,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.1333333333333333) internal successors, (34), 30 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:51:50,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2024-11-09 20:51:50,814 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 20 [2024-11-09 20:51:50,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 20:51:50,814 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2024-11-09 20:51:50,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:51:50,822 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2024-11-09 20:51:50,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-09 20:51:50,823 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 20:51:50,823 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 20:51:50,842 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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)] Ended with exit code 0 [2024-11-09 20:51:51,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-09 20:51:51,024 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 20:51:51,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 20:51:51,025 INFO L85 PathProgramCache]: Analyzing trace with hash 776323, now seen corresponding path program 1 times [2024-11-09 20:51:51,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 20:51:51,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1627005691] [2024-11-09 20:51:51,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 20:51:51,026 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 [2024-11-09 20:51:51,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 20:51:51,029 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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) [2024-11-09 20:51:51,030 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-09 20:51:51,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 20:51:51,520 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-09 20:51:51,522 INFO L278 TraceCheckSpWp]: Computing forward predicates...