./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1072c.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1072c.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 7dedcc4e0d73f8d6f04d58880e42c68da67c7fd6d90a8920279134db43221c4a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 00:40:02,512 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 00:40:02,602 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 00:40:02,611 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 00:40:02,611 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 00:40:02,633 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 00:40:02,633 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 00:40:02,634 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 00:40:02,634 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 00:40:02,635 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 00:40:02,635 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 00:40:02,635 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 00:40:02,637 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 00:40:02,638 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 00:40:02,639 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 00:40:02,640 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 00:40:02,640 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 00:40:02,641 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 00:40:02,641 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 00:40:02,641 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 00:40:02,642 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 00:40:02,643 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 00:40:02,644 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 00:40:02,644 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 00:40:02,644 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 00:40:02,645 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 00:40:02,645 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 00:40:02,645 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 00:40:02,646 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 00:40:02,646 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 00:40:02,646 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 00:40:02,647 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 00:40:02,647 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 00:40:02,647 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 00:40:02,648 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 00:40:02,648 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 00:40:02,648 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 00:40:02,648 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 00:40:02,650 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 00:40:02,650 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 00:40:02,651 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 00:40:02,651 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 00:40:02,651 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7dedcc4e0d73f8d6f04d58880e42c68da67c7fd6d90a8920279134db43221c4a [2024-10-11 00:40:02,920 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 00:40:02,943 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 00:40:02,946 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 00:40:02,947 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 00:40:02,947 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 00:40:02,949 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1072c.c [2024-10-11 00:40:04,426 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 00:40:04,615 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 00:40:04,616 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1072c.c [2024-10-11 00:40:04,623 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/8fec0aeb0/bca3542b835b4f8a80f1a6e8f43094f7/FLAGcb70a4fbc [2024-10-11 00:40:04,640 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/8fec0aeb0/bca3542b835b4f8a80f1a6e8f43094f7 [2024-10-11 00:40:04,643 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 00:40:04,644 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 00:40:04,646 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 00:40:04,646 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 00:40:04,652 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 00:40:04,653 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:40:04" (1/1) ... [2024-10-11 00:40:04,656 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12c75d3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:40:04, skipping insertion in model container [2024-10-11 00:40:04,657 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:40:04" (1/1) ... [2024-10-11 00:40:04,681 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 00:40:04,955 WARN L248 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/double_req_bl_1072c.c[2112,2125] [2024-10-11 00:40:04,959 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 00:40:04,967 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 00:40:04,988 WARN L248 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/double_req_bl_1072c.c[2112,2125] [2024-10-11 00:40:04,989 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 00:40:05,004 INFO L204 MainTranslator]: Completed translation [2024-10-11 00:40:05,005 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:40:05 WrapperNode [2024-10-11 00:40:05,005 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 00:40:05,006 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 00:40:05,006 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 00:40:05,006 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 00:40:05,012 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:40:05" (1/1) ... [2024-10-11 00:40:05,021 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:40:05" (1/1) ... [2024-10-11 00:40:05,051 INFO L138 Inliner]: procedures = 17, calls = 33, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 157 [2024-10-11 00:40:05,052 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 00:40:05,053 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 00:40:05,053 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 00:40:05,053 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 00:40:05,064 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:40:05" (1/1) ... [2024-10-11 00:40:05,065 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:40:05" (1/1) ... [2024-10-11 00:40:05,070 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:40:05" (1/1) ... [2024-10-11 00:40:05,086 INFO L175 MemorySlicer]: Split 16 memory accesses to 6 slices as follows [2, 3, 3, 2, 3, 3]. 19 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0]. The 8 writes are split as follows [0, 2, 2, 1, 2, 1]. [2024-10-11 00:40:05,087 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:40:05" (1/1) ... [2024-10-11 00:40:05,087 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:40:05" (1/1) ... [2024-10-11 00:40:05,096 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:40:05" (1/1) ... [2024-10-11 00:40:05,100 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:40:05" (1/1) ... [2024-10-11 00:40:05,105 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:40:05" (1/1) ... [2024-10-11 00:40:05,106 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:40:05" (1/1) ... [2024-10-11 00:40:05,113 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 00:40:05,116 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 00:40:05,116 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 00:40:05,116 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 00:40:05,117 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:40:05" (1/1) ... [2024-10-11 00:40:05,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 00:40:05,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 00:40:05,156 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 00:40:05,159 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 00:40:05,205 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 00:40:05,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 00:40:05,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-11 00:40:05,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-11 00:40:05,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-11 00:40:05,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-11 00:40:05,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-11 00:40:05,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-11 00:40:05,208 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-10-11 00:40:05,208 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-10-11 00:40:05,208 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-10-11 00:40:05,209 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-10-11 00:40:05,209 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-10-11 00:40:05,209 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-10-11 00:40:05,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-11 00:40:05,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-11 00:40:05,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-11 00:40:05,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-11 00:40:05,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-11 00:40:05,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-11 00:40:05,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-10-11 00:40:05,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-10-11 00:40:05,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-10-11 00:40:05,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-10-11 00:40:05,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-10-11 00:40:05,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-10-11 00:40:05,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 00:40:05,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 00:40:05,210 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-11 00:40:05,210 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-11 00:40:05,210 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-11 00:40:05,210 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-11 00:40:05,210 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-11 00:40:05,211 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-11 00:40:05,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-11 00:40:05,345 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 00:40:05,347 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 00:40:05,608 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-10-11 00:40:05,608 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 00:40:05,646 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 00:40:05,646 INFO L314 CfgBuilder]: Removed 10 assume(true) statements. [2024-10-11 00:40:05,647 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:40:05 BoogieIcfgContainer [2024-10-11 00:40:05,647 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 00:40:05,648 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 00:40:05,648 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 00:40:05,651 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 00:40:05,651 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:40:04" (1/3) ... [2024-10-11 00:40:05,651 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ec70f97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:40:05, skipping insertion in model container [2024-10-11 00:40:05,652 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:40:05" (2/3) ... [2024-10-11 00:40:05,652 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ec70f97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:40:05, skipping insertion in model container [2024-10-11 00:40:05,652 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:40:05" (3/3) ... [2024-10-11 00:40:05,653 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1072c.c [2024-10-11 00:40:05,667 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 00:40:05,667 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 00:40:05,721 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 00:40:05,727 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;@3ef8984e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 00:40:05,728 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 00:40:05,731 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 42 states have (on average 1.6428571428571428) internal successors, (69), 43 states have internal predecessors, (69), 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) [2024-10-11 00:40:05,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-11 00:40:05,735 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 00:40:05,736 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 00:40:05,736 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 00:40:05,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 00:40:05,741 INFO L85 PathProgramCache]: Analyzing trace with hash -490876898, now seen corresponding path program 1 times [2024-10-11 00:40:05,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 00:40:05,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586180998] [2024-10-11 00:40:05,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 00:40:05,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 00:40:05,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 00:40:05,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 00:40:05,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 00:40:05,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586180998] [2024-10-11 00:40:05,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586180998] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 00:40:05,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 00:40:05,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 00:40:05,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982802473] [2024-10-11 00:40:05,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 00:40:05,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 00:40:05,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 00:40:05,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 00:40:05,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 00:40:05,917 INFO L87 Difference]: Start difference. First operand has 44 states, 42 states have (on average 1.6428571428571428) internal successors, (69), 43 states have internal predecessors, (69), 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 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2024-10-11 00:40:05,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 00:40:05,948 INFO L93 Difference]: Finished difference Result 87 states and 137 transitions. [2024-10-11 00:40:05,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 00:40:05,952 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 12 [2024-10-11 00:40:05,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 00:40:05,963 INFO L225 Difference]: With dead ends: 87 [2024-10-11 00:40:05,963 INFO L226 Difference]: Without dead ends: 42 [2024-10-11 00:40:05,966 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 [2024-10-11 00:40:05,968 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 00:40:05,969 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 55 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 00:40:05,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-10-11 00:40:05,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2024-10-11 00:40:05,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 41 states have (on average 1.3658536585365855) internal successors, (56), 41 states have internal predecessors, (56), 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) [2024-10-11 00:40:05,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 56 transitions. [2024-10-11 00:40:05,996 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 56 transitions. Word has length 12 [2024-10-11 00:40:05,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 00:40:05,997 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 56 transitions. [2024-10-11 00:40:05,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2024-10-11 00:40:05,997 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 56 transitions. [2024-10-11 00:40:05,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-11 00:40:05,998 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 00:40:05,998 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 00:40:05,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 00:40:05,999 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 00:40:05,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 00:40:06,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1091764013, now seen corresponding path program 1 times [2024-10-11 00:40:06,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 00:40:06,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318848003] [2024-10-11 00:40:06,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 00:40:06,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 00:40:06,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 00:40:06,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 00:40:06,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 00:40:06,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318848003] [2024-10-11 00:40:06,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318848003] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 00:40:06,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 00:40:06,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 00:40:06,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505300541] [2024-10-11 00:40:06,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 00:40:06,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 00:40:06,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 00:40:06,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 00:40:06,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 00:40:06,216 INFO L87 Difference]: Start difference. First operand 42 states and 56 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2024-10-11 00:40:06,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 00:40:06,275 INFO L93 Difference]: Finished difference Result 75 states and 101 transitions. [2024-10-11 00:40:06,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 00:40:06,277 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 13 [2024-10-11 00:40:06,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 00:40:06,277 INFO L225 Difference]: With dead ends: 75 [2024-10-11 00:40:06,277 INFO L226 Difference]: Without dead ends: 45 [2024-10-11 00:40:06,278 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 00:40:06,279 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 1 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 00:40:06,279 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 138 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 00:40:06,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-10-11 00:40:06,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2024-10-11 00:40:06,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 44 states have (on average 1.3409090909090908) internal successors, (59), 44 states have internal predecessors, (59), 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) [2024-10-11 00:40:06,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 59 transitions. [2024-10-11 00:40:06,289 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 59 transitions. Word has length 13 [2024-10-11 00:40:06,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 00:40:06,290 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 59 transitions. [2024-10-11 00:40:06,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2024-10-11 00:40:06,290 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 59 transitions. [2024-10-11 00:40:06,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-11 00:40:06,292 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 00:40:06,292 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 00:40:06,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 00:40:06,294 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 00:40:06,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 00:40:06,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1987843580, now seen corresponding path program 1 times [2024-10-11 00:40:06,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 00:40:06,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477443655] [2024-10-11 00:40:06,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 00:40:06,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 00:40:06,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 00:40:06,355 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-11 00:40:06,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 00:40:06,415 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-11 00:40:06,416 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-11 00:40:06,417 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-11 00:40:06,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 00:40:06,423 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-10-11 00:40:06,447 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 00:40:06,454 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:40:06 BoogieIcfgContainer [2024-10-11 00:40:06,455 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 00:40:06,456 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 00:40:06,456 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 00:40:06,456 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 00:40:06,457 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:40:05" (3/4) ... [2024-10-11 00:40:06,459 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-11 00:40:06,460 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 00:40:06,460 INFO L158 Benchmark]: Toolchain (without parser) took 1816.23ms. Allocated memory is still 159.4MB. Free memory was 92.9MB in the beginning and 60.4MB in the end (delta: 32.5MB). Peak memory consumption was 33.7MB. Max. memory is 16.1GB. [2024-10-11 00:40:06,461 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 159.4MB. Free memory is still 120.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 00:40:06,461 INFO L158 Benchmark]: CACSL2BoogieTranslator took 359.35ms. Allocated memory is still 159.4MB. Free memory was 92.6MB in the beginning and 128.8MB in the end (delta: -36.2MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. [2024-10-11 00:40:06,462 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.16ms. Allocated memory is still 159.4MB. Free memory was 128.8MB in the beginning and 126.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 00:40:06,463 INFO L158 Benchmark]: Boogie Preprocessor took 60.91ms. Allocated memory is still 159.4MB. Free memory was 126.7MB in the beginning and 124.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 00:40:06,463 INFO L158 Benchmark]: RCFGBuilder took 531.09ms. Allocated memory is still 159.4MB. Free memory was 124.1MB in the beginning and 103.2MB in the end (delta: 20.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-11 00:40:06,464 INFO L158 Benchmark]: TraceAbstraction took 806.61ms. Allocated memory is still 159.4MB. Free memory was 102.4MB in the beginning and 60.4MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-10-11 00:40:06,464 INFO L158 Benchmark]: Witness Printer took 4.29ms. Allocated memory is still 159.4MB. Free memory is still 60.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 00:40:06,465 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 159.4MB. Free memory is still 120.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 359.35ms. Allocated memory is still 159.4MB. Free memory was 92.6MB in the beginning and 128.8MB in the end (delta: -36.2MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.16ms. Allocated memory is still 159.4MB. Free memory was 128.8MB in the beginning and 126.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.91ms. Allocated memory is still 159.4MB. Free memory was 126.7MB in the beginning and 124.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 531.09ms. Allocated memory is still 159.4MB. Free memory was 124.1MB in the beginning and 103.2MB in the end (delta: 20.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 806.61ms. Allocated memory is still 159.4MB. Free memory was 102.4MB in the beginning and 60.4MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Witness Printer took 4.29ms. Allocated memory is still 159.4MB. Free memory is still 60.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 88]: 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 someBinaryDOUBLEComparisonOperation at line 87, overapproximation of someUnaryDOUBLEoperation at line 83, overapproximation of someBinaryArithmeticDOUBLEoperation at line 51. Possible FailurePath: [L83] double x = -0.0; [L84] CALL, EXPR trunc_double(x) [L20] int signbit; [L21] int msw; [L22] unsigned int lsw; [L23] int exponent_less_1023; [L25] ieee_double_shape_type ew_u; [L26] ew_u.value = (x) [L27] EXPR ew_u.parts.msw [L27] (msw) = ew_u.parts.msw [L28] EXPR ew_u.parts.lsw [L28] (lsw) = ew_u.parts.lsw [L30] signbit = msw & 0x80000000 VAL [lsw=6441402369, msw=2146435072, signbit=0, x=6441402378] [L31] EXPR msw & 0x7ff00000 VAL [lsw=6441402369, msw=2146435072, signbit=0, x=6441402378] [L31] exponent_less_1023 = ((msw & 0x7ff00000) >> 20) - 1023 [L32] COND FALSE !(exponent_less_1023 < 20) [L49] COND TRUE exponent_less_1023 > 51 [L50] COND TRUE exponent_less_1023 == 1024 [L51] return x + x; VAL [lsw=6441402369, msw=2146435072, signbit=0, x=6441402378] [L84] RET, EXPR trunc_double(x) [L84] double res = trunc_double(x); [L87] EXPR res == -0.0 && __signbit_double(res) == 1 VAL [res=6441402379] [L87] EXPR res == -0.0 && __signbit_double(res) == 1 [L87] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L88] reach_error() VAL [res=6441402379] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 44 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 193 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 87 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 32 IncrementalHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 106 mSDtfsCounter, 32 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=2, InterpolantAutomatonStates: 6, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 37 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 [2024-10-11 00:40:06,489 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1072c.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 7dedcc4e0d73f8d6f04d58880e42c68da67c7fd6d90a8920279134db43221c4a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 00:40:08,695 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 00:40:08,781 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-10-11 00:40:08,788 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 00:40:08,789 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 00:40:08,821 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 00:40:08,822 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 00:40:08,823 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 00:40:08,824 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 00:40:08,827 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 00:40:08,828 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 00:40:08,828 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 00:40:08,828 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 00:40:08,829 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 00:40:08,829 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 00:40:08,829 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 00:40:08,830 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 00:40:08,830 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 00:40:08,830 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 00:40:08,830 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 00:40:08,831 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 00:40:08,833 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 00:40:08,833 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 00:40:08,833 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-11 00:40:08,833 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-11 00:40:08,834 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 00:40:08,834 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-11 00:40:08,834 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 00:40:08,835 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 00:40:08,835 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 00:40:08,836 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 00:40:08,837 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 00:40:08,837 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 00:40:08,837 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 00:40:08,837 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 00:40:08,838 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 00:40:08,838 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 00:40:08,838 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 00:40:08,839 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-11 00:40:08,839 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-11 00:40:08,839 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 00:40:08,840 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 00:40:08,840 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 00:40:08,840 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 00:40:08,840 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-11 00:40:08,841 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7dedcc4e0d73f8d6f04d58880e42c68da67c7fd6d90a8920279134db43221c4a [2024-10-11 00:40:09,205 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 00:40:09,230 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 00:40:09,234 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 00:40:09,235 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 00:40:09,235 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 00:40:09,238 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1072c.c [2024-10-11 00:40:10,905 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 00:40:11,094 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 00:40:11,095 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1072c.c [2024-10-11 00:40:11,104 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/ef2977313/699c94e2e08640d490272cad5d568f63/FLAG985255442 [2024-10-11 00:40:11,118 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/ef2977313/699c94e2e08640d490272cad5d568f63 [2024-10-11 00:40:11,121 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 00:40:11,122 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 00:40:11,123 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 00:40:11,123 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 00:40:11,129 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 00:40:11,130 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:40:11" (1/1) ... [2024-10-11 00:40:11,131 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49584139 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:40:11, skipping insertion in model container [2024-10-11 00:40:11,131 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:40:11" (1/1) ... [2024-10-11 00:40:11,156 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 00:40:11,363 WARN L248 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/double_req_bl_1072c.c[2112,2125] [2024-10-11 00:40:11,367 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 00:40:11,382 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 00:40:11,419 WARN L248 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/double_req_bl_1072c.c[2112,2125] [2024-10-11 00:40:11,420 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 00:40:11,443 INFO L204 MainTranslator]: Completed translation [2024-10-11 00:40:11,444 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:40:11 WrapperNode [2024-10-11 00:40:11,444 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 00:40:11,445 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 00:40:11,445 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 00:40:11,446 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 00:40:11,452 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:40:11" (1/1) ... [2024-10-11 00:40:11,465 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:40:11" (1/1) ... [2024-10-11 00:40:11,491 INFO L138 Inliner]: procedures = 20, calls = 33, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 113 [2024-10-11 00:40:11,493 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 00:40:11,493 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 00:40:11,494 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 00:40:11,494 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 00:40:11,503 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:40:11" (1/1) ... [2024-10-11 00:40:11,503 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:40:11" (1/1) ... [2024-10-11 00:40:11,511 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:40:11" (1/1) ... [2024-10-11 00:40:11,536 INFO L175 MemorySlicer]: Split 16 memory accesses to 6 slices as follows [2, 3, 3, 3, 3, 2]. 19 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0]. The 8 writes are split as follows [0, 1, 2, 2, 2, 1]. [2024-10-11 00:40:11,536 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:40:11" (1/1) ... [2024-10-11 00:40:11,536 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:40:11" (1/1) ... [2024-10-11 00:40:11,550 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:40:11" (1/1) ... [2024-10-11 00:40:11,557 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:40:11" (1/1) ... [2024-10-11 00:40:11,563 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:40:11" (1/1) ... [2024-10-11 00:40:11,568 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:40:11" (1/1) ... [2024-10-11 00:40:11,572 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 00:40:11,577 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 00:40:11,577 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 00:40:11,577 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 00:40:11,578 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:40:11" (1/1) ... [2024-10-11 00:40:11,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 00:40:11,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 00:40:11,615 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 00:40:11,621 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 00:40:11,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 00:40:11,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-10-11 00:40:11,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-10-11 00:40:11,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2024-10-11 00:40:11,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#3 [2024-10-11 00:40:11,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#4 [2024-10-11 00:40:11,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#5 [2024-10-11 00:40:11,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2024-10-11 00:40:11,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2024-10-11 00:40:11,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2024-10-11 00:40:11,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#3 [2024-10-11 00:40:11,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#4 [2024-10-11 00:40:11,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#5 [2024-10-11 00:40:11,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-11 00:40:11,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-10-11 00:40:11,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-10-11 00:40:11,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-10-11 00:40:11,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-10-11 00:40:11,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-10-11 00:40:11,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-11 00:40:11,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-10-11 00:40:11,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-10-11 00:40:11,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-10-11 00:40:11,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-10-11 00:40:11,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-10-11 00:40:11,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-10-11 00:40:11,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 00:40:11,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 00:40:11,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-10-11 00:40:11,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-10-11 00:40:11,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-10-11 00:40:11,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-10-11 00:40:11,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-10-11 00:40:11,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-10-11 00:40:11,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-11 00:40:11,798 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 00:40:11,809 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 00:40:12,118 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-10-11 00:40:12,118 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 00:40:12,154 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 00:40:12,155 INFO L314 CfgBuilder]: Removed 10 assume(true) statements. [2024-10-11 00:40:12,156 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:40:12 BoogieIcfgContainer [2024-10-11 00:40:12,156 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 00:40:12,158 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 00:40:12,158 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 00:40:12,161 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 00:40:12,161 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:40:11" (1/3) ... [2024-10-11 00:40:12,162 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d12c79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:40:12, skipping insertion in model container [2024-10-11 00:40:12,162 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:40:11" (2/3) ... [2024-10-11 00:40:12,162 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d12c79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:40:12, skipping insertion in model container [2024-10-11 00:40:12,162 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:40:12" (3/3) ... [2024-10-11 00:40:12,163 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1072c.c [2024-10-11 00:40:12,180 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 00:40:12,180 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 00:40:12,244 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 00:40:12,250 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;@16d619b2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 00:40:12,251 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 00:40:12,254 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 23 states have (on average 1.7391304347826086) internal successors, (40), 24 states have internal predecessors, (40), 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) [2024-10-11 00:40:12,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-10-11 00:40:12,259 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 00:40:12,260 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 00:40:12,260 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 00:40:12,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 00:40:12,264 INFO L85 PathProgramCache]: Analyzing trace with hash -722451778, now seen corresponding path program 1 times [2024-10-11 00:40:12,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 00:40:12,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1746078885] [2024-10-11 00:40:12,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 00:40:12,276 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 [2024-10-11 00:40:12,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 00:40:12,280 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/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) [2024-10-11 00:40:12,282 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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 [2024-10-11 00:40:12,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 00:40:12,393 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-11 00:40:12,396 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 00:40:12,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 00:40:12,411 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 00:40:12,413 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 00:40:12,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1746078885] [2024-10-11 00:40:12,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1746078885] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 00:40:12,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 00:40:12,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 00:40:12,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627062217] [2024-10-11 00:40:12,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 00:40:12,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 00:40:12,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 00:40:12,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 00:40:12,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 00:40:12,447 INFO L87 Difference]: Start difference. First operand has 25 states, 23 states have (on average 1.7391304347826086) internal successors, (40), 24 states have internal predecessors, (40), 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 5.0) internal successors, (10), 2 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) [2024-10-11 00:40:12,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 00:40:12,470 INFO L93 Difference]: Finished difference Result 49 states and 79 transitions. [2024-10-11 00:40:12,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 00:40:12,473 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 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 [2024-10-11 00:40:12,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 00:40:12,492 INFO L225 Difference]: With dead ends: 49 [2024-10-11 00:40:12,492 INFO L226 Difference]: Without dead ends: 23 [2024-10-11 00:40:12,495 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 00:40:12,498 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 00:40:12,499 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 26 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 00:40:12,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2024-10-11 00:40:12,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2024-10-11 00:40:12,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 states have internal predecessors, (27), 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) [2024-10-11 00:40:12,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2024-10-11 00:40:12,535 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 10 [2024-10-11 00:40:12,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 00:40:12,535 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2024-10-11 00:40:12,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 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) [2024-10-11 00:40:12,535 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2024-10-11 00:40:12,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-10-11 00:40:12,536 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 00:40:12,536 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 00:40:12,543 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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 [2024-10-11 00:40:12,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-clean/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 [2024-10-11 00:40:12,737 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 00:40:12,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 00:40:12,738 INFO L85 PathProgramCache]: Analyzing trace with hash -990790617, now seen corresponding path program 1 times [2024-10-11 00:40:12,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 00:40:12,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2123739770] [2024-10-11 00:40:12,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 00:40:12,740 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 [2024-10-11 00:40:12,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 00:40:12,742 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/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) [2024-10-11 00:40:12,743 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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 [2024-10-11 00:40:12,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 00:40:12,857 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-11 00:40:12,861 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 00:40:13,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 00:40:13,044 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 00:40:13,045 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 00:40:13,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2123739770] [2024-10-11 00:40:13,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2123739770] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 00:40:13,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 00:40:13,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 00:40:13,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713098308] [2024-10-11 00:40:13,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 00:40:13,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 00:40:13,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 00:40:13,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 00:40:13,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 00:40:13,050 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 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) [2024-10-11 00:40:13,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 00:40:13,153 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions. [2024-10-11 00:40:13,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 00:40:13,154 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 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 11 [2024-10-11 00:40:13,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 00:40:13,155 INFO L225 Difference]: With dead ends: 32 [2024-10-11 00:40:13,155 INFO L226 Difference]: Without dead ends: 17 [2024-10-11 00:40:13,155 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-11 00:40:13,157 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 12 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 00:40:13,157 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 34 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 00:40:13,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2024-10-11 00:40:13,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2024-10-11 00:40:13,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.0625) internal successors, (17), 16 states have internal predecessors, (17), 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) [2024-10-11 00:40:13,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2024-10-11 00:40:13,161 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 11 [2024-10-11 00:40:13,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 00:40:13,161 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2024-10-11 00:40:13,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 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) [2024-10-11 00:40:13,162 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2024-10-11 00:40:13,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-11 00:40:13,162 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 00:40:13,162 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 00:40:13,175 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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 [2024-10-11 00:40:13,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-clean/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 [2024-10-11 00:40:13,363 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 00:40:13,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 00:40:13,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1172272180, now seen corresponding path program 1 times [2024-10-11 00:40:13,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 00:40:13,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1889357329] [2024-10-11 00:40:13,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 00:40:13,365 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 [2024-10-11 00:40:13,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 00:40:13,370 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/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) [2024-10-11 00:40:13,371 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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 [2024-10-11 00:40:13,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 00:40:13,461 INFO L255 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-11 00:40:13,463 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 00:40:13,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 00:40:13,556 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 00:40:13,556 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 00:40:13,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1889357329] [2024-10-11 00:40:13,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1889357329] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 00:40:13,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 00:40:13,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 00:40:13,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070975221] [2024-10-11 00:40:13,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 00:40:13,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 00:40:13,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 00:40:13,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 00:40:13,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 00:40:13,559 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 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) [2024-10-11 00:40:13,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 00:40:13,667 INFO L93 Difference]: Finished difference Result 20 states and 19 transitions. [2024-10-11 00:40:13,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 00:40:13,667 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 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 13 [2024-10-11 00:40:13,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 00:40:13,668 INFO L225 Difference]: With dead ends: 20 [2024-10-11 00:40:13,669 INFO L226 Difference]: Without dead ends: 17 [2024-10-11 00:40:13,669 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-11 00:40:13,671 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 8 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 00:40:13,672 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 35 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 00:40:13,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2024-10-11 00:40:13,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2024-10-11 00:40:13,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.0) internal successors, (16), 16 states have internal predecessors, (16), 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) [2024-10-11 00:40:13,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 16 transitions. [2024-10-11 00:40:13,679 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 16 transitions. Word has length 13 [2024-10-11 00:40:13,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 00:40:13,679 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 16 transitions. [2024-10-11 00:40:13,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 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) [2024-10-11 00:40:13,680 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 16 transitions. [2024-10-11 00:40:13,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-10-11 00:40:13,680 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 00:40:13,680 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 00:40:13,686 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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)] Forceful destruction successful, exit code 0 [2024-10-11 00:40:13,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-clean/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 [2024-10-11 00:40:13,884 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 00:40:13,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 00:40:13,885 INFO L85 PathProgramCache]: Analyzing trace with hash 278725031, now seen corresponding path program 1 times [2024-10-11 00:40:13,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 00:40:13,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1199077951] [2024-10-11 00:40:13,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 00:40:13,890 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 [2024-10-11 00:40:13,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 00:40:13,893 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/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) [2024-10-11 00:40:13,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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 [2024-10-11 00:40:13,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 00:40:14,000 INFO L255 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-10-11 00:40:14,005 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 00:40:14,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 00:40:14,289 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 00:40:14,290 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 00:40:14,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1199077951] [2024-10-11 00:40:14,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1199077951] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 00:40:14,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 00:40:14,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-11 00:40:14,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357875609] [2024-10-11 00:40:14,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 00:40:14,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 00:40:14,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 00:40:14,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 00:40:14,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-11 00:40:14,296 INFO L87 Difference]: Start difference. First operand 17 states and 16 transitions. Second operand has 10 states, 10 states have (on average 1.6) internal successors, (16), 9 states have internal predecessors, (16), 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) [2024-10-11 00:40:14,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 00:40:14,538 INFO L93 Difference]: Finished difference Result 17 states and 16 transitions. [2024-10-11 00:40:14,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 00:40:14,538 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.6) internal successors, (16), 9 states have internal predecessors, (16), 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 16 [2024-10-11 00:40:14,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 00:40:14,539 INFO L225 Difference]: With dead ends: 17 [2024-10-11 00:40:14,539 INFO L226 Difference]: Without dead ends: 0 [2024-10-11 00:40:14,540 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2024-10-11 00:40:14,540 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 16 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 00:40:14,541 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 32 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 00:40:14,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-11 00:40:14,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-11 00:40:14,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2024-10-11 00:40:14,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-11 00:40:14,542 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2024-10-11 00:40:14,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 00:40:14,544 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-11 00:40:14,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.6) internal successors, (16), 9 states have internal predecessors, (16), 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) [2024-10-11 00:40:14,545 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-11 00:40:14,545 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-11 00:40:14,548 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-11 00:40:14,554 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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 [2024-10-11 00:40:14,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-clean/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 [2024-10-11 00:40:14,753 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-10-11 00:40:14,755 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-11 00:40:14,813 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 00:40:14,822 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~Pluszero~64 [2024-10-11 00:40:14,824 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~Pluszero~64 [2024-10-11 00:40:14,825 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-11 00:40:14,825 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-11 00:40:14,825 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~Pluszero~64 [2024-10-11 00:40:14,826 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:40:14 BoogieIcfgContainer [2024-10-11 00:40:14,826 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 00:40:14,827 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 00:40:14,827 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 00:40:14,829 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 00:40:14,830 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:40:12" (3/4) ... [2024-10-11 00:40:14,832 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-11 00:40:14,840 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2024-10-11 00:40:14,840 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-10-11 00:40:14,840 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-11 00:40:14,843 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-11 00:40:14,990 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-11 00:40:14,990 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-11 00:40:14,990 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 00:40:14,991 INFO L158 Benchmark]: Toolchain (without parser) took 3868.97ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 30.5MB in the beginning and 54.0MB in the end (delta: -23.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 00:40:14,991 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 48.2MB. Free memory is still 29.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 00:40:14,992 INFO L158 Benchmark]: CACSL2BoogieTranslator took 321.22ms. Allocated memory is still 65.0MB. Free memory was 30.2MB in the beginning and 36.3MB in the end (delta: -6.0MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. [2024-10-11 00:40:14,992 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.60ms. Allocated memory is still 65.0MB. Free memory was 36.3MB in the beginning and 34.6MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 00:40:14,993 INFO L158 Benchmark]: Boogie Preprocessor took 82.62ms. Allocated memory is still 65.0MB. Free memory was 34.6MB in the beginning and 31.3MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-11 00:40:14,993 INFO L158 Benchmark]: RCFGBuilder took 579.30ms. Allocated memory is still 65.0MB. Free memory was 31.3MB in the beginning and 34.1MB in the end (delta: -2.8MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. [2024-10-11 00:40:14,993 INFO L158 Benchmark]: TraceAbstraction took 2668.50ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 33.5MB in the beginning and 49.1MB in the end (delta: -15.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 00:40:14,993 INFO L158 Benchmark]: Witness Printer took 163.73ms. Allocated memory is still 79.7MB. Free memory was 49.1MB in the beginning and 54.0MB in the end (delta: -4.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 00:40:14,995 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 48.2MB. Free memory is still 29.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 321.22ms. Allocated memory is still 65.0MB. Free memory was 30.2MB in the beginning and 36.3MB in the end (delta: -6.0MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.60ms. Allocated memory is still 65.0MB. Free memory was 36.3MB in the beginning and 34.6MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 82.62ms. Allocated memory is still 65.0MB. Free memory was 34.6MB in the beginning and 31.3MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 579.30ms. Allocated memory is still 65.0MB. Free memory was 31.3MB in the beginning and 34.1MB in the end (delta: -2.8MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. * TraceAbstraction took 2668.50ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 33.5MB in the beginning and 49.1MB in the end (delta: -15.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 163.73ms. Allocated memory is still 79.7MB. Free memory was 49.1MB in the beginning and 54.0MB in the end (delta: -4.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~Pluszero~64 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~Pluszero~64 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~Pluszero~64 * 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 - PositiveResult [Line: 88]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.5s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 36 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 36 mSDsluCounter, 127 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 76 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 113 IncrementalHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 51 mSDtfsCounter, 113 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 55 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 24, 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 46 ConstructedInterpolants, 16 QuantifiedInterpolants, 307 SizeOfPredicates, 15 NumberOfNonLiveVariables, 187 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2024-10-11 00:40:15,028 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE