./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/inv_Newton-2.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version 4f9af400
extending candidate: java
['java']
extending candidate: /usr/bin/java
['java', '/usr/bin/java']
extending candidate: /opt/oracle-jdk-bin-*/bin/java
['java', '/usr/bin/java']
extending candidate: /opt/openjdk-*/bin/java
['java', '/usr/bin/java']
extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java
['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java']
['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/float-benchs/inv_Newton-2.c', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/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())) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', '67155ca1e686450fca2a6f4b9f638c838555b88a3546adff9656d040c859ca12']
Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/inv_Newton-2.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 67155ca1e686450fca2a6f4b9f638c838555b88a3546adff9656d040c859ca12
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-4f9af40
[2024-11-06 20:44:05,310 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-06 20:44:05,377 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-06 20:44:05,382 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-06 20:44:05,382 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-06 20:44:05,407 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-06 20:44:05,408 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-06 20:44:05,408 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-06 20:44:05,408 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-06 20:44:05,409 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-06 20:44:05,409 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-06 20:44:05,409 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-06 20:44:05,409 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-06 20:44:05,409 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-06 20:44:05,409 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-06 20:44:05,409 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-06 20:44:05,410 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-06 20:44:05,410 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-06 20:44:05,410 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-06 20:44:05,410 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-06 20:44:05,410 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-06 20:44:05,410 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-06 20:44:05,410 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-06 20:44:05,410 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-06 20:44:05,411 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-06 20:44:05,411 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-06 20:44:05,411 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-06 20:44:05,411 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-06 20:44:05,411 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-06 20:44:05,411 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-06 20:44:05,411 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-06 20:44:05,411 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-06 20:44:05,412 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 20:44:05,412 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-06 20:44:05,412 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-06 20:44:05,412 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-06 20:44:05,412 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-06 20:44:05,412 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-06 20:44:05,412 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-06 20:44:05,412 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-06 20:44:05,412 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-06 20:44:05,412 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-06 20:44:05,412 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/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 -> 67155ca1e686450fca2a6f4b9f638c838555b88a3546adff9656d040c859ca12
[2024-11-06 20:44:05,693 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-06 20:44:05,701 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-06 20:44:05,705 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-06 20:44:05,706 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-06 20:44:05,706 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-06 20:44:05,708 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/inv_Newton-2.c
[2024-11-06 20:44:07,019 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-06 20:44:07,260 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-06 20:44:07,262 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-benchs/inv_Newton-2.c
[2024-11-06 20:44:07,270 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/be3e4db59/f28b42233a8346a78918aae5be525d81/FLAGd34ecddae
[2024-11-06 20:44:07,589 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/be3e4db59/f28b42233a8346a78918aae5be525d81
[2024-11-06 20:44:07,591 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-06 20:44:07,592 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-06 20:44:07,593 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-06 20:44:07,594 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-06 20:44:07,597 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-06 20:44:07,598 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:44:07" (1/1) ...
[2024-11-06 20:44:07,599 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b8f4757 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:44:07, skipping insertion in model container
[2024-11-06 20:44:07,599 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:44:07" (1/1) ...
[2024-11-06 20:44:07,610 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-06 20:44:07,731 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-benchs/inv_Newton-2.c[847,860]
[2024-11-06 20:44:07,755 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-06 20:44:07,762 INFO L200 MainTranslator]: Completed pre-run
[2024-11-06 20:44:07,769 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-benchs/inv_Newton-2.c[847,860]
[2024-11-06 20:44:07,777 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-06 20:44:07,789 INFO L204 MainTranslator]: Completed translation
[2024-11-06 20:44:07,790 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:44:07 WrapperNode
[2024-11-06 20:44:07,790 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-06 20:44:07,791 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-06 20:44:07,791 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-06 20:44:07,791 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-06 20:44:07,796 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:44:07" (1/1) ...
[2024-11-06 20:44:07,802 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:44:07" (1/1) ...
[2024-11-06 20:44:07,817 INFO L138 Inliner]: procedures = 18, calls = 21, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 74
[2024-11-06 20:44:07,817 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-06 20:44:07,818 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-06 20:44:07,818 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-06 20:44:07,818 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-06 20:44:07,825 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:44:07" (1/1) ...
[2024-11-06 20:44:07,826 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:44:07" (1/1) ...
[2024-11-06 20:44:07,829 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:44:07" (1/1) ...
[2024-11-06 20:44:07,851 INFO L175 MemorySlicer]: Split 7 memory accesses to 3 slices as follows [2, 2, 3]. 43 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 3 writes are split as follows [0, 1, 2].
[2024-11-06 20:44:07,853 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:44:07" (1/1) ...
[2024-11-06 20:44:07,853 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:44:07" (1/1) ...
[2024-11-06 20:44:07,862 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:44:07" (1/1) ...
[2024-11-06 20:44:07,869 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:44:07" (1/1) ...
[2024-11-06 20:44:07,870 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:44:07" (1/1) ...
[2024-11-06 20:44:07,871 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:44:07" (1/1) ...
[2024-11-06 20:44:07,873 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-06 20:44:07,878 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-06 20:44:07,878 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-06 20:44:07,878 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-06 20:44:07,879 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:44:07" (1/1) ...
[2024-11-06 20:44:07,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 20:44:07,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-06 20:44:07,916 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-06 20:44:07,925 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-06 20:44:07,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-06 20:44:07,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-06 20:44:07,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-11-06 20:44:07,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2
[2024-11-06 20:44:07,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2024-11-06 20:44:07,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0
[2024-11-06 20:44:07,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1
[2024-11-06 20:44:07,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2
[2024-11-06 20:44:07,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0
[2024-11-06 20:44:07,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1
[2024-11-06 20:44:07,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2
[2024-11-06 20:44:07,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0
[2024-11-06 20:44:07,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1
[2024-11-06 20:44:07,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2
[2024-11-06 20:44:07,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-06 20:44:07,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-06 20:44:07,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0
[2024-11-06 20:44:07,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1
[2024-11-06 20:44:07,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2
[2024-11-06 20:44:07,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-11-06 20:44:08,014 INFO L238 CfgBuilder]: Building ICFG
[2024-11-06 20:44:08,015 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-06 20:44:08,135 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live.
[2024-11-06 20:44:08,136 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-06 20:44:08,143 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-06 20:44:08,143 INFO L316 CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-06 20:44:08,143 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:44:08 BoogieIcfgContainer
[2024-11-06 20:44:08,143 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-06 20:44:08,145 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-06 20:44:08,146 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-06 20:44:08,150 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-06 20:44:08,150 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:44:07" (1/3) ...
[2024-11-06 20:44:08,151 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ca685dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:44:08, skipping insertion in model container
[2024-11-06 20:44:08,151 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:44:07" (2/3) ...
[2024-11-06 20:44:08,151 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ca685dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:44:08, skipping insertion in model container
[2024-11-06 20:44:08,151 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:44:08" (3/3) ...
[2024-11-06 20:44:08,152 INFO L112 eAbstractionObserver]: Analyzing ICFG inv_Newton-2.c
[2024-11-06 20:44:08,166 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-06 20:44:08,166 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-06 20:44:08,221 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-06 20:44:08,233 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;@1b07922a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-06 20:44:08,235 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-06 20:44:08,242 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 16 states have (on average 1.4375) internal successors, (23), 17 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-06 20:44:08,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2024-11-06 20:44:08,248 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-06 20:44:08,249 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-06 20:44:08,250 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 20:44:08,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 20:44:08,255 INFO L85 PathProgramCache]: Analyzing trace with hash 515648436, now seen corresponding path program 1 times
[2024-11-06 20:44:08,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-06 20:44:08,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639146840]
[2024-11-06 20:44:08,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 20:44:08,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-06 20:44:08,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 20:44:08,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-06 20:44:08,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-06 20:44:08,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639146840]
[2024-11-06 20:44:08,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639146840] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-06 20:44:08,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-06 20:44:08,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-06 20:44:08,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122785669]
[2024-11-06 20:44:08,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-06 20:44:08,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-06 20:44:08,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-06 20:44:08,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-06 20:44:08,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-06 20:44:08,417 INFO L87 Difference]: Start difference. First operand has 18 states, 16 states have (on average 1.4375) internal successors, (23), 17 states have internal predecessors, (23), 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 5.5) internal successors, (11), 2 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)
[2024-11-06 20:44:08,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 20:44:08,426 INFO L93 Difference]: Finished difference Result 33 states and 42 transitions.
[2024-11-06 20:44:08,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-11-06 20:44:08,427 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 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
[2024-11-06 20:44:08,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 20:44:08,432 INFO L225 Difference]: With dead ends: 33
[2024-11-06 20:44:08,432 INFO L226 Difference]: Without dead ends: 14
[2024-11-06 20:44:08,435 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-06 20:44:08,437 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-06 20:44:08,437 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-06 20:44:08,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states.
[2024-11-06 20:44:08,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14.
[2024-11-06 20:44:08,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 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)
[2024-11-06 20:44:08,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions.
[2024-11-06 20:44:08,459 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11
[2024-11-06 20:44:08,459 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-06 20:44:08,459 INFO L471 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions.
[2024-11-06 20:44:08,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 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)
[2024-11-06 20:44:08,460 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions.
[2024-11-06 20:44:08,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2024-11-06 20:44:08,460 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-06 20:44:08,460 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-06 20:44:08,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-06 20:44:08,461 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 20:44:08,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 20:44:08,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1192012722, now seen corresponding path program 1 times
[2024-11-06 20:44:08,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-06 20:44:08,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270195830]
[2024-11-06 20:44:08,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 20:44:08,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-06 20:44:08,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 20:44:08,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-06 20:44:08,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-06 20:44:08,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270195830]
[2024-11-06 20:44:08,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270195830] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-06 20:44:08,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-06 20:44:08,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-06 20:44:08,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896165937]
[2024-11-06 20:44:08,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-06 20:44:08,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-06 20:44:08,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-06 20:44:08,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-06 20:44:08,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-06 20:44:08,622 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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)
[2024-11-06 20:44:08,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 20:44:08,632 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions.
[2024-11-06 20:44:08,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-06 20:44:08,633 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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
[2024-11-06 20:44:08,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 20:44:08,633 INFO L225 Difference]: With dead ends: 20
[2024-11-06 20:44:08,633 INFO L226 Difference]: Without dead ends: 15
[2024-11-06 20:44:08,633 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-06 20:44:08,634 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 0 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-06 20:44:08,634 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 26 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-06 20:44:08,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states.
[2024-11-06 20:44:08,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15.
[2024-11-06 20:44:08,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 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)
[2024-11-06 20:44:08,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions.
[2024-11-06 20:44:08,639 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 11
[2024-11-06 20:44:08,639 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-06 20:44:08,639 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions.
[2024-11-06 20:44:08,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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)
[2024-11-06 20:44:08,640 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions.
[2024-11-06 20:44:08,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2024-11-06 20:44:08,641 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-06 20:44:08,641 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-06 20:44:08,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-06 20:44:08,641 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 20:44:08,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 20:44:08,641 INFO L85 PathProgramCache]: Analyzing trace with hash -1650656591, now seen corresponding path program 1 times
[2024-11-06 20:44:08,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-06 20:44:08,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659808663]
[2024-11-06 20:44:08,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 20:44:08,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-06 20:44:08,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-06 20:44:08,684 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-06 20:44:08,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-06 20:44:08,722 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-06 20:44:08,723 INFO L325 BasicCegarLoop]: Counterexample is feasible
[2024-11-06 20:44:08,724 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-11-06 20:44:08,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-06 20:44:08,728 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2024-11-06 20:44:08,749 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-06 20:44:08,753 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 08:44:08 BoogieIcfgContainer
[2024-11-06 20:44:08,753 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-06 20:44:08,754 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-06 20:44:08,755 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-06 20:44:08,755 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-06 20:44:08,756 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:44:08" (3/4) ...
[2024-11-06 20:44:08,758 INFO L145 WitnessPrinter]: No result that supports witness generation found
[2024-11-06 20:44:08,759 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-06 20:44:08,760 INFO L158 Benchmark]: Toolchain (without parser) took 1168.10ms. Allocated memory is still 117.4MB. Free memory was 92.1MB in the beginning and 78.0MB in the end (delta: 14.0MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB.
[2024-11-06 20:44:08,761 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 117.4MB. Free memory is still 81.9MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-06 20:44:08,762 INFO L158 Benchmark]: CACSL2BoogieTranslator took 196.69ms. Allocated memory is still 117.4MB. Free memory was 91.9MB in the beginning and 80.6MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-06 20:44:08,762 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.68ms. Allocated memory is still 117.4MB. Free memory was 80.6MB in the beginning and 79.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-06 20:44:08,763 INFO L158 Benchmark]: Boogie Preprocessor took 59.24ms. Allocated memory is still 117.4MB. Free memory was 79.4MB in the beginning and 77.7MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-06 20:44:08,763 INFO L158 Benchmark]: RCFGBuilder took 265.75ms. Allocated memory is still 117.4MB. Free memory was 77.7MB in the beginning and 66.3MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-06 20:44:08,764 INFO L158 Benchmark]: TraceAbstraction took 608.10ms. Allocated memory is still 117.4MB. Free memory was 65.8MB in the beginning and 78.0MB in the end (delta: -12.2MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-06 20:44:08,764 INFO L158 Benchmark]: Witness Printer took 5.57ms. Allocated memory is still 117.4MB. Free memory was 78.0MB in the beginning and 78.0MB in the end (delta: 34.6kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-06 20:44:08,765 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.43ms. Allocated memory is still 117.4MB. Free memory is still 81.9MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 196.69ms. Allocated memory is still 117.4MB. Free memory was 91.9MB in the beginning and 80.6MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 26.68ms. Allocated memory is still 117.4MB. Free memory was 80.6MB in the beginning and 79.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 59.24ms. Allocated memory is still 117.4MB. Free memory was 79.4MB in the beginning and 77.7MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* RCFGBuilder took 265.75ms. Allocated memory is still 117.4MB. Free memory was 77.7MB in the beginning and 66.3MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* TraceAbstraction took 608.10ms. Allocated memory is still 117.4MB. Free memory was 65.8MB in the beginning and 78.0MB in the end (delta: -12.2MB). There was no memory consumed. Max. memory is 16.1GB.
* Witness Printer took 5.57ms. Allocated memory is still 117.4MB. Free memory was 78.0MB in the beginning and 78.0MB in the end (delta: 34.6kB). 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: 23]: 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 60, overapproximation of to_real at line 38, overapproximation of someBinaryArithmeticDOUBLEoperation at line 43.
Possible FailurePath:
[L53] double a,r;
[L55] a = __VERIFIER_nondet_double()
[L56] CALL assume_abort_if_not(a >= 20. && a <= 30.)
[L21] COND FALSE !(!cond)
[L56] RET assume_abort_if_not(a >= 20. && a <= 30.)
[L58] CALL, EXPR inv(a)
[L33] double xi, xsi, temp;
[L34] signed int cond, exp;
[L35] union double_int A_u, xi_u;
[L36] A_u.d = A
[L37] EXPR A_u.i
[L37] EXPR A_u.i & 0x7FF00000
VAL [xi_u={4:0}]
[L37] exp = (signed int) ((A_u.i & 0x7FF00000) >> 20) - 1023
[L38] xi_u.d = 1
[L39] xi_u.i = ((1023-exp) << 20)
[L40] EXPR xi_u.d
[L40] xi = xi_u.d
[L41] cond = 1
VAL [cond=1, xi=2145386511]
[L42] COND TRUE \read(cond)
[L43] xsi = 2*xi-A*xi*xi
[L44] temp = xsi-xi
[L45] cond = ((temp > 1e-10) || (temp < -1e-10))
[L46] xi = xsi
VAL [cond=0, xi=2145386510]
[L42] COND FALSE !(\read(cond))
VAL [xi=2145386510]
[L48] return xi;
[L48] return xi;
[L48] return xi;
VAL [\result=2145386510]
[L58] RET, EXPR inv(a)
[L58] r = inv(a)
[L60] CALL __VERIFIER_assert(r >= 0 && r <= 0.06)
[L23] COND TRUE !(cond)
[L23] reach_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 1 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 46 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 35 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, InterpolantAutomatonStates: 5, 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, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 22 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
[2024-11-06 20:44:08,796 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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
Using bit-precise analysis
Retrying with bit-precise analysis
### Bit-precise run ###
Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/inv_Newton-2.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 67155ca1e686450fca2a6f4b9f638c838555b88a3546adff9656d040c859ca12
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-4f9af40
[2024-11-06 20:44:10,944 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-06 20:44:11,047 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-06 20:44:11,055 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-06 20:44:11,056 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-06 20:44:11,082 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-06 20:44:11,083 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-06 20:44:11,083 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-06 20:44:11,083 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-06 20:44:11,083 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-06 20:44:11,083 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-06 20:44:11,084 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-06 20:44:11,084 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-06 20:44:11,084 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-06 20:44:11,084 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-06 20:44:11,084 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-06 20:44:11,084 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-06 20:44:11,084 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-06 20:44:11,084 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-06 20:44:11,084 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-06 20:44:11,084 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-06 20:44:11,084 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-06 20:44:11,084 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-06 20:44:11,085 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-11-06 20:44:11,085 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2024-11-06 20:44:11,085 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-06 20:44:11,085 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-06 20:44:11,085 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-06 20:44:11,085 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-06 20:44:11,085 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-06 20:44:11,085 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-06 20:44:11,087 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-06 20:44:11,087 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-06 20:44:11,087 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-06 20:44:11,088 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 20:44:11,088 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-06 20:44:11,088 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-06 20:44:11,088 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-06 20:44:11,088 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF
[2024-11-06 20:44:11,088 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-06 20:44:11,088 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-06 20:44:11,088 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-06 20:44:11,089 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-06 20:44:11,089 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-06 20:44:11,089 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/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 -> 67155ca1e686450fca2a6f4b9f638c838555b88a3546adff9656d040c859ca12
[2024-11-06 20:44:11,378 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-06 20:44:11,385 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-06 20:44:11,387 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-06 20:44:11,390 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-06 20:44:11,390 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-06 20:44:11,391 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/inv_Newton-2.c
[2024-11-06 20:44:12,700 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-06 20:44:12,915 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-06 20:44:12,916 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-benchs/inv_Newton-2.c
[2024-11-06 20:44:12,924 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e2992229d/f0671f978ee4415a9769a64625183b4b/FLAGf5adcddc9
[2024-11-06 20:44:12,944 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e2992229d/f0671f978ee4415a9769a64625183b4b
[2024-11-06 20:44:12,947 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-06 20:44:12,950 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-06 20:44:12,953 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-06 20:44:12,953 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-06 20:44:12,957 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-06 20:44:12,958 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:44:12" (1/1) ...
[2024-11-06 20:44:12,960 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b4e77dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:44:12, skipping insertion in model container
[2024-11-06 20:44:12,960 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:44:12" (1/1) ...
[2024-11-06 20:44:12,975 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-06 20:44:13,111 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-benchs/inv_Newton-2.c[847,860]
[2024-11-06 20:44:13,134 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-06 20:44:13,146 INFO L200 MainTranslator]: Completed pre-run
[2024-11-06 20:44:13,157 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-benchs/inv_Newton-2.c[847,860]
[2024-11-06 20:44:13,174 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-06 20:44:13,192 INFO L204 MainTranslator]: Completed translation
[2024-11-06 20:44:13,193 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:44:13 WrapperNode
[2024-11-06 20:44:13,194 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-06 20:44:13,195 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-06 20:44:13,195 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-06 20:44:13,195 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-06 20:44:13,202 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:44:13" (1/1) ...
[2024-11-06 20:44:13,214 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:44:13" (1/1) ...
[2024-11-06 20:44:13,236 INFO L138 Inliner]: procedures = 21, calls = 21, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 67
[2024-11-06 20:44:13,236 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-06 20:44:13,237 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-06 20:44:13,237 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-06 20:44:13,237 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-06 20:44:13,244 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:44:13" (1/1) ...
[2024-11-06 20:44:13,244 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:44:13" (1/1) ...
[2024-11-06 20:44:13,249 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:44:13" (1/1) ...
[2024-11-06 20:44:13,265 INFO L175 MemorySlicer]: Split 7 memory accesses to 3 slices as follows [2, 2, 3]. 43 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 3 writes are split as follows [0, 1, 2].
[2024-11-06 20:44:13,265 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:44:13" (1/1) ...
[2024-11-06 20:44:13,265 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:44:13" (1/1) ...
[2024-11-06 20:44:13,273 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:44:13" (1/1) ...
[2024-11-06 20:44:13,276 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:44:13" (1/1) ...
[2024-11-06 20:44:13,278 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:44:13" (1/1) ...
[2024-11-06 20:44:13,281 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:44:13" (1/1) ...
[2024-11-06 20:44:13,283 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-06 20:44:13,285 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-06 20:44:13,285 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-06 20:44:13,285 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-06 20:44:13,286 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:44:13" (1/1) ...
[2024-11-06 20:44:13,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 20:44:13,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-06 20:44:13,314 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-06 20:44:13,317 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-06 20:44:13,335 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-06 20:44:13,335 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0
[2024-11-06 20:44:13,335 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1
[2024-11-06 20:44:13,335 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2
[2024-11-06 20:44:13,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0
[2024-11-06 20:44:13,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1
[2024-11-06 20:44:13,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2
[2024-11-06 20:44:13,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-06 20:44:13,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1
[2024-11-06 20:44:13,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2
[2024-11-06 20:44:13,335 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2024-11-06 20:44:13,335 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0
[2024-11-06 20:44:13,335 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1
[2024-11-06 20:44:13,336 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2
[2024-11-06 20:44:13,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-06 20:44:13,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-06 20:44:13,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-11-06 20:44:13,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0
[2024-11-06 20:44:13,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1
[2024-11-06 20:44:13,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2
[2024-11-06 20:44:13,409 INFO L238 CfgBuilder]: Building ICFG
[2024-11-06 20:44:13,410 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-06 20:44:17,666 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live.
[2024-11-06 20:44:17,667 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-06 20:44:17,673 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-06 20:44:17,673 INFO L316 CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-06 20:44:17,673 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:44:17 BoogieIcfgContainer
[2024-11-06 20:44:17,674 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-06 20:44:17,676 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-06 20:44:17,676 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-06 20:44:17,681 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-06 20:44:17,681 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:44:12" (1/3) ...
[2024-11-06 20:44:17,682 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e2a9958 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:44:17, skipping insertion in model container
[2024-11-06 20:44:17,682 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:44:13" (2/3) ...
[2024-11-06 20:44:17,682 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e2a9958 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:44:17, skipping insertion in model container
[2024-11-06 20:44:17,682 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:44:17" (3/3) ...
[2024-11-06 20:44:17,684 INFO L112 eAbstractionObserver]: Analyzing ICFG inv_Newton-2.c
[2024-11-06 20:44:17,695 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-06 20:44:17,696 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-06 20:44:17,738 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-06 20:44:17,750 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;@71afc7f1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-06 20:44:17,750 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-06 20:44:17,756 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 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)
[2024-11-06 20:44:17,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2024-11-06 20:44:17,760 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-06 20:44:17,760 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-06 20:44:17,760 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 20:44:17,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 20:44:17,764 INFO L85 PathProgramCache]: Analyzing trace with hash -590190995, now seen corresponding path program 1 times
[2024-11-06 20:44:17,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-11-06 20:44:17,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1944912431]
[2024-11-06 20:44:17,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 20:44:17,772 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-06 20:44:17,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 20:44:17,774 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-11-06 20:44:17,776 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2024-11-06 20:44:17,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 20:44:17,903 INFO L255 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-06 20:44:17,906 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 20:44:17,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-06 20:44:17,918 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-06 20:44:17,919 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2024-11-06 20:44:17,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1944912431]
[2024-11-06 20:44:17,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1944912431] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-06 20:44:17,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-06 20:44:17,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-06 20:44:17,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256718992]
[2024-11-06 20:44:17,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-06 20:44:17,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-06 20:44:17,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2024-11-06 20:44:17,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-06 20:44:17,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-06 20:44:17,940 INFO L87 Difference]: Start difference. First operand has 14 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 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) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-06 20:44:17,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 20:44:17,950 INFO L93 Difference]: Finished difference Result 25 states and 30 transitions.
[2024-11-06 20:44:17,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-11-06 20:44:17,951 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9
[2024-11-06 20:44:17,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 20:44:17,957 INFO L225 Difference]: With dead ends: 25
[2024-11-06 20:44:17,957 INFO L226 Difference]: Without dead ends: 10
[2024-11-06 20:44:17,959 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-06 20:44:17,962 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-06 20:44:17,964 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-06 20:44:17,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states.
[2024-11-06 20:44:17,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10.
[2024-11-06 20:44:17,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-06 20:44:17,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions.
[2024-11-06 20:44:17,995 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 9
[2024-11-06 20:44:17,995 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-06 20:44:17,995 INFO L471 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions.
[2024-11-06 20:44:17,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-06 20:44:17,996 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions.
[2024-11-06 20:44:17,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2024-11-06 20:44:17,996 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-06 20:44:17,996 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-06 20:44:18,003 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0
[2024-11-06 20:44:18,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-06 20:44:18,198 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 20:44:18,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 20:44:18,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1184816367, now seen corresponding path program 1 times
[2024-11-06 20:44:18,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-11-06 20:44:18,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [218292694]
[2024-11-06 20:44:18,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 20:44:18,199 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-06 20:44:18,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 20:44:18,201 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-11-06 20:44:18,202 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2024-11-06 20:44:18,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 20:44:18,303 INFO L255 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-06 20:44:18,304 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 20:44:18,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-06 20:44:18,373 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-06 20:44:18,373 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2024-11-06 20:44:18,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [218292694]
[2024-11-06 20:44:18,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [218292694] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-06 20:44:18,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-06 20:44:18,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-06 20:44:18,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505661801]
[2024-11-06 20:44:18,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-06 20:44:18,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-06 20:44:18,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2024-11-06 20:44:18,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-06 20:44:18,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-06 20:44:18,375 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-06 20:44:22,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 20:44:26,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 20:44:30,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 20:44:30,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 20:44:30,901 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions.
[2024-11-06 20:44:30,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-06 20:44:30,903 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9
[2024-11-06 20:44:30,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 20:44:30,903 INFO L225 Difference]: With dead ends: 16
[2024-11-06 20:44:30,903 INFO L226 Difference]: Without dead ends: 11
[2024-11-06 20:44:30,903 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-06 20:44:30,904 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 0 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time
[2024-11-06 20:44:30,904 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 3 Unknown, 0 Unchecked, 12.5s Time]
[2024-11-06 20:44:30,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states.
[2024-11-06 20:44:30,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11.
[2024-11-06 20:44:30,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.1) internal successors, (11), 10 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)
[2024-11-06 20:44:30,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions.
[2024-11-06 20:44:30,907 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 9
[2024-11-06 20:44:30,908 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-06 20:44:30,908 INFO L471 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions.
[2024-11-06 20:44:30,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-06 20:44:30,908 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions.
[2024-11-06 20:44:30,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2024-11-06 20:44:30,908 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-06 20:44:30,909 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-06 20:44:30,914 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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)] Forceful destruction successful, exit code 0
[2024-11-06 20:44:31,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-06 20:44:31,109 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 20:44:31,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 20:44:31,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1873743609, now seen corresponding path program 1 times
[2024-11-06 20:44:31,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-11-06 20:44:31,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [550515353]
[2024-11-06 20:44:31,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 20:44:31,111 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-06 20:44:31,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 20:44:31,113 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-11-06 20:44:31,115 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process
[2024-11-06 20:44:31,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 20:44:31,949 INFO L255 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 23 conjuncts are in the unsatisfiable core
[2024-11-06 20:44:31,954 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 20:44:41,053 WARN L286 SmtUtils]: Spent 8.21s on a formula simplification that was a NOOP. DAG size: 19 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)
[2024-11-06 20:44:49,194 WARN L286 SmtUtils]: Spent 8.14s on a formula simplification that was a NOOP. DAG size: 23 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)
[2024-11-06 20:44:57,344 WARN L286 SmtUtils]: Spent 8.15s on a formula simplification that was a NOOP. DAG size: 23 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)
[2024-11-06 20:45:05,581 WARN L286 SmtUtils]: Spent 8.24s on a formula simplification that was a NOOP. DAG size: 20 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)
[2024-11-06 20:45:13,878 WARN L286 SmtUtils]: Spent 8.27s on a formula simplification that was a NOOP. DAG size: 21 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)
[2024-11-06 20:45:22,142 WARN L286 SmtUtils]: Spent 8.26s on a formula simplification that was a NOOP. DAG size: 20 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)
[2024-11-06 20:45:30,294 WARN L286 SmtUtils]: Spent 8.15s on a formula simplification that was a NOOP. DAG size: 23 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)
[2024-11-06 20:45:38,515 WARN L286 SmtUtils]: Spent 8.14s on a formula simplification that was a NOOP. DAG size: 23 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)
[2024-11-06 20:45:46,751 WARN L286 SmtUtils]: Spent 8.24s on a formula simplification that was a NOOP. DAG size: 20 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)