./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/gcd_4+newton_1_2.i --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/combinations/gcd_4+newton_1_2.i', '-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', '65d58fd3e8c5638a351c469fc6c6b86b0bc6efe1f0f08d6df11bfe5a3616f3a3']
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/combinations/gcd_4+newton_1_2.i -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 65d58fd3e8c5638a351c469fc6c6b86b0bc6efe1f0f08d6df11bfe5a3616f3a3
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-4f9af40
[2024-11-07 01:20:12,322 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-07 01:20:12,392 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-07 01:20:12,396 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-07 01:20:12,399 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-07 01:20:12,420 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-07 01:20:12,421 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-07 01:20:12,421 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-07 01:20:12,421 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-07 01:20:12,421 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-07 01:20:12,421 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-07 01:20:12,421 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-07 01:20:12,421 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-07 01:20:12,421 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-07 01:20:12,421 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-07 01:20:12,422 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-07 01:20:12,422 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-07 01:20:12,422 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-07 01:20:12,422 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-07 01:20:12,422 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-07 01:20:12,422 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-07 01:20:12,422 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-07 01:20:12,422 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-07 01:20:12,422 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-07 01:20:12,422 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-07 01:20:12,422 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-07 01:20:12,422 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-07 01:20:12,422 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-07 01:20:12,422 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-07 01:20:12,422 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-07 01:20:12,422 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-07 01:20:12,422 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-07 01:20:12,422 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-07 01:20:12,422 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-07 01:20:12,423 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-07 01:20:12,423 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-07 01:20:12,423 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-07 01:20:12,423 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-07 01:20:12,423 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-07 01:20:12,423 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-07 01:20:12,423 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-07 01:20:12,423 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-07 01:20:12,423 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 -> 65d58fd3e8c5638a351c469fc6c6b86b0bc6efe1f0f08d6df11bfe5a3616f3a3
[2024-11-07 01:20:12,652 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-07 01:20:12,662 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-07 01:20:12,664 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-07 01:20:12,665 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-07 01:20:12,666 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-07 01:20:12,666 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/gcd_4+newton_1_2.i
[2024-11-07 01:20:13,870 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-07 01:20:14,095 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-07 01:20:14,096 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/gcd_4+newton_1_2.i
[2024-11-07 01:20:14,105 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/bea2bbb33/11782f5087034eb7a6243030298270cc/FLAG309ea8428
[2024-11-07 01:20:14,449 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/bea2bbb33/11782f5087034eb7a6243030298270cc
[2024-11-07 01:20:14,451 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-07 01:20:14,452 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-07 01:20:14,453 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-07 01:20:14,453 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-07 01:20:14,457 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-07 01:20:14,458 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:20:14" (1/1) ...
[2024-11-07 01:20:14,459 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3126685b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:20:14, skipping insertion in model container
[2024-11-07 01:20:14,459 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:20:14" (1/1) ...
[2024-11-07 01:20:14,472 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-07 01:20:14,584 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/combinations/gcd_4+newton_1_2.i[1224,1237]
[2024-11-07 01:20:14,614 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/combinations/gcd_4+newton_1_2.i[2806,2819]
[2024-11-07 01:20:14,615 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-07 01:20:14,623 INFO L200 MainTranslator]: Completed pre-run
[2024-11-07 01:20:14,631 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/combinations/gcd_4+newton_1_2.i[1224,1237]
[2024-11-07 01:20:14,643 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/combinations/gcd_4+newton_1_2.i[2806,2819]
[2024-11-07 01:20:14,644 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-07 01:20:14,658 INFO L204 MainTranslator]: Completed translation
[2024-11-07 01:20:14,659 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:20:14 WrapperNode
[2024-11-07 01:20:14,660 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-07 01:20:14,661 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-07 01:20:14,661 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-07 01:20:14,662 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-07 01:20:14,667 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:20:14" (1/1) ...
[2024-11-07 01:20:14,672 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:20:14" (1/1) ...
[2024-11-07 01:20:14,687 INFO L138 Inliner]: procedures = 27, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 80
[2024-11-07 01:20:14,687 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-07 01:20:14,688 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-07 01:20:14,688 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-07 01:20:14,688 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-07 01:20:14,694 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:20:14" (1/1) ...
[2024-11-07 01:20:14,695 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:20:14" (1/1) ...
[2024-11-07 01:20:14,696 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:20:14" (1/1) ...
[2024-11-07 01:20:14,705 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0].
[2024-11-07 01:20:14,706 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:20:14" (1/1) ...
[2024-11-07 01:20:14,706 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:20:14" (1/1) ...
[2024-11-07 01:20:14,709 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:20:14" (1/1) ...
[2024-11-07 01:20:14,714 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:20:14" (1/1) ...
[2024-11-07 01:20:14,716 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:20:14" (1/1) ...
[2024-11-07 01:20:14,717 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:20:14" (1/1) ...
[2024-11-07 01:20:14,718 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-07 01:20:14,718 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-07 01:20:14,718 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-07 01:20:14,718 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-07 01:20:14,720 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:20:14" (1/1) ...
[2024-11-07 01:20:14,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-07 01:20:14,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 01:20:14,747 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)
[2024-11-07 01:20:14,750 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
[2024-11-07 01:20:14,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-07 01:20:14,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-07 01:20:14,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-11-07 01:20:14,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-07 01:20:14,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-07 01:20:14,768 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2024-11-07 01:20:14,768 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2024-11-07 01:20:14,824 INFO L238 CfgBuilder]: Building ICFG
[2024-11-07 01:20:14,826 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-07 01:20:14,945 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live.
[2024-11-07 01:20:14,946 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-07 01:20:14,956 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-07 01:20:14,956 INFO L316 CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-07 01:20:14,956 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:20:14 BoogieIcfgContainer
[2024-11-07 01:20:14,956 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-07 01:20:14,958 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-07 01:20:14,959 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-07 01:20:14,963 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-07 01:20:14,963 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:20:14" (1/3) ...
[2024-11-07 01:20:14,964 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5840ea1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:20:14, skipping insertion in model container
[2024-11-07 01:20:14,964 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:20:14" (2/3) ...
[2024-11-07 01:20:14,964 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5840ea1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:20:14, skipping insertion in model container
[2024-11-07 01:20:14,964 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:20:14" (3/3) ...
[2024-11-07 01:20:14,966 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_4+newton_1_2.i
[2024-11-07 01:20:14,977 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-07 01:20:14,978 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2024-11-07 01:20:15,027 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-07 01:20:15,035 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;@7237eaff, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-07 01:20:15,035 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-11-07 01:20:15,041 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 26 states have (on average 1.4615384615384615) internal successors, (38), 28 states have internal predecessors, (38), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-11-07 01:20:15,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2024-11-07 01:20:15,046 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-07 01:20:15,046 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 01:20:15,047 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-07 01:20:15,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 01:20:15,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1386425161, now seen corresponding path program 1 times
[2024-11-07 01:20:15,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 01:20:15,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749992467]
[2024-11-07 01:20:15,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 01:20:15,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 01:20:15,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 01:20:15,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 01:20:15,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 01:20:15,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749992467]
[2024-11-07 01:20:15,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749992467] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 01:20:15,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 01:20:15,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-07 01:20:15,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76201765]
[2024-11-07 01:20:15,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 01:20:15,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-07 01:20:15,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 01:20:15,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-07 01:20:15,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-07 01:20:15,182 INFO L87 Difference]: Start difference. First operand has 33 states, 26 states have (on average 1.4615384615384615) internal successors, (38), 28 states have internal predecessors, (38), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) 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)
[2024-11-07 01:20:15,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-07 01:20:15,198 INFO L93 Difference]: Finished difference Result 57 states and 74 transitions.
[2024-11-07 01:20:15,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-11-07 01:20:15,200 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
[2024-11-07 01:20:15,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-07 01:20:15,205 INFO L225 Difference]: With dead ends: 57
[2024-11-07 01:20:15,205 INFO L226 Difference]: Without dead ends: 26
[2024-11-07 01:20:15,208 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
[2024-11-07 01:20:15,210 INFO L432 NwaCegarLoop]: 40 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, 40 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
[2024-11-07 01:20:15,210 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-07 01:20:15,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states.
[2024-11-07 01:20:15,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26.
[2024-11-07 01:20:15,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 20 states have (on average 1.35) internal successors, (27), 22 states have internal predecessors, (27), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-07 01:20:15,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions.
[2024-11-07 01:20:15,240 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 32 transitions. Word has length 9
[2024-11-07 01:20:15,241 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-07 01:20:15,241 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 32 transitions.
[2024-11-07 01:20:15,241 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)
[2024-11-07 01:20:15,242 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions.
[2024-11-07 01:20:15,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2024-11-07 01:20:15,242 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-07 01:20:15,242 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 01:20:15,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-07 01:20:15,243 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-07 01:20:15,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 01:20:15,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1329166859, now seen corresponding path program 1 times
[2024-11-07 01:20:15,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 01:20:15,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941938078]
[2024-11-07 01:20:15,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 01:20:15,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 01:20:15,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-07 01:20:15,268 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-07 01:20:15,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-07 01:20:15,300 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-07 01:20:15,300 INFO L325 BasicCegarLoop]: Counterexample is feasible
[2024-11-07 01:20:15,301 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining)
[2024-11-07 01:20:15,302 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2024-11-07 01:20:15,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-07 01:20:15,305 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1]
[2024-11-07 01:20:15,316 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-07 01:20:15,318 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 01:20:15 BoogieIcfgContainer
[2024-11-07 01:20:15,318 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-07 01:20:15,319 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-07 01:20:15,319 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-07 01:20:15,319 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-07 01:20:15,320 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:20:14" (3/4) ...
[2024-11-07 01:20:15,321 INFO L145 WitnessPrinter]: No result that supports witness generation found
[2024-11-07 01:20:15,322 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-07 01:20:15,323 INFO L158 Benchmark]: Toolchain (without parser) took 870.44ms. Allocated memory is still 117.4MB. Free memory was 93.2MB in the beginning and 44.7MB in the end (delta: 48.4MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB.
[2024-11-07 01:20:15,323 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 83.9MB. Free memory is still 48.8MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-07 01:20:15,323 INFO L158 Benchmark]: CACSL2BoogieTranslator took 207.55ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 81.2MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-07 01:20:15,323 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.00ms. Allocated memory is still 117.4MB. Free memory was 81.2MB in the beginning and 79.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-07 01:20:15,323 INFO L158 Benchmark]: Boogie Preprocessor took 30.10ms. Allocated memory is still 117.4MB. Free memory was 79.7MB in the beginning and 78.2MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-07 01:20:15,324 INFO L158 Benchmark]: RCFGBuilder took 237.89ms. Allocated memory is still 117.4MB. Free memory was 78.2MB in the beginning and 66.0MB in the end (delta: 12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-07 01:20:15,324 INFO L158 Benchmark]: TraceAbstraction took 359.78ms. Allocated memory is still 117.4MB. Free memory was 65.5MB in the beginning and 45.0MB in the end (delta: 20.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB.
[2024-11-07 01:20:15,324 INFO L158 Benchmark]: Witness Printer took 3.13ms. Allocated memory is still 117.4MB. Free memory was 45.0MB in the beginning and 44.7MB in the end (delta: 261.2kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-07 01:20:15,326 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.20ms. Allocated memory is still 83.9MB. Free memory is still 48.8MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 207.55ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 81.2MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 26.00ms. Allocated memory is still 117.4MB. Free memory was 81.2MB in the beginning and 79.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 30.10ms. Allocated memory is still 117.4MB. Free memory was 79.7MB in the beginning and 78.2MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* RCFGBuilder took 237.89ms. Allocated memory is still 117.4MB. Free memory was 78.2MB in the beginning and 66.0MB in the end (delta: 12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* TraceAbstraction took 359.78ms. Allocated memory is still 117.4MB. Free memory was 65.5MB in the beginning and 45.0MB in the end (delta: 20.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB.
* Witness Printer took 3.13ms. Allocated memory is still 117.4MB. Free memory was 45.0MB in the beginning and 44.7MB in the end (delta: 261.2kB). There was no memory consumed. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- UnprovableResult [Line: 109]: Unable to prove that a call to reach_error is unreachable
Unable to prove that a call to reach_error is unreachable
Reason: overapproximation of someBinaryFLOATComparisonOperation at line 98, overapproximation of someBinaryDOUBLEComparisonOperation at line 108, overapproximation of someBinaryArithmeticFLOAToperation at line 100.
Possible FailurePath:
[L115] COND FALSE !(__VERIFIER_nondet_int())
[L118] CALL main2()
[L97] float IN = __VERIFIER_nondet_float();
[L98] CALL assume_abort_if_not(IN > -0.4f && IN < 0.4f)
[L82] COND FALSE !(!cond)
[L98] RET assume_abort_if_not(IN > -0.4f && IN < 0.4f)
[L100] CALL, EXPR f(IN)
[L87] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f;
[L100] RET, EXPR f(IN)
[L100] CALL, EXPR fp(IN)
[L92] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f;
[L100] RET, EXPR fp(IN)
[L100] float x = IN - f(IN)/fp(IN);
[L108] COND TRUE !(x < 0.1)
[L109] reach_error()
- UnprovableResult [Line: 27]: Unable to prove that a call to reach_error is unreachable
Unable to prove that a call to reach_error is unreachable
Reason: Not analyzed.
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 2 procedures, 33 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 40 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 40 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces
[2024-11-07 01:20:15,347 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/combinations/gcd_4+newton_1_2.i -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 65d58fd3e8c5638a351c469fc6c6b86b0bc6efe1f0f08d6df11bfe5a3616f3a3
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-4f9af40
[2024-11-07 01:20:17,232 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-07 01:20:17,316 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-07 01:20:17,321 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-07 01:20:17,321 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-07 01:20:17,335 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-07 01:20:17,336 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-07 01:20:17,336 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-07 01:20:17,336 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-07 01:20:17,336 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-07 01:20:17,336 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-07 01:20:17,336 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-07 01:20:17,337 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-07 01:20:17,337 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-07 01:20:17,337 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-07 01:20:17,337 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-07 01:20:17,337 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-07 01:20:17,337 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-07 01:20:17,338 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-07 01:20:17,338 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-07 01:20:17,338 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-07 01:20:17,338 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-07 01:20:17,338 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-07 01:20:17,338 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-11-07 01:20:17,338 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2024-11-07 01:20:17,338 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-07 01:20:17,338 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-07 01:20:17,338 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-07 01:20:17,339 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-07 01:20:17,339 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-07 01:20:17,339 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-07 01:20:17,339 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-07 01:20:17,339 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-07 01:20:17,339 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-07 01:20:17,339 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-07 01:20:17,339 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-07 01:20:17,339 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-07 01:20:17,339 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-07 01:20:17,339 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF
[2024-11-07 01:20:17,340 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-07 01:20:17,340 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-07 01:20:17,340 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-07 01:20:17,340 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-07 01:20:17,340 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-07 01:20:17,340 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 -> 65d58fd3e8c5638a351c469fc6c6b86b0bc6efe1f0f08d6df11bfe5a3616f3a3
[2024-11-07 01:20:17,608 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-07 01:20:17,617 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-07 01:20:17,619 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-07 01:20:17,620 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-07 01:20:17,621 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-07 01:20:17,622 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/gcd_4+newton_1_2.i
[2024-11-07 01:20:18,771 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-07 01:20:18,984 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-07 01:20:18,985 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/gcd_4+newton_1_2.i
[2024-11-07 01:20:18,993 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/17ff9a0d0/8b4e632d02184fc9a1cae307a8ad9a92/FLAG8641ef1fe
[2024-11-07 01:20:19,344 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/17ff9a0d0/8b4e632d02184fc9a1cae307a8ad9a92
[2024-11-07 01:20:19,347 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-07 01:20:19,349 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-07 01:20:19,350 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-07 01:20:19,351 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-07 01:20:19,354 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-07 01:20:19,354 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:20:19" (1/1) ...
[2024-11-07 01:20:19,355 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7114feae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:20:19, skipping insertion in model container
[2024-11-07 01:20:19,355 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:20:19" (1/1) ...
[2024-11-07 01:20:19,371 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-07 01:20:19,481 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/combinations/gcd_4+newton_1_2.i[1224,1237]
[2024-11-07 01:20:19,514 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/combinations/gcd_4+newton_1_2.i[2806,2819]
[2024-11-07 01:20:19,516 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-07 01:20:19,528 INFO L200 MainTranslator]: Completed pre-run
[2024-11-07 01:20:19,542 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/combinations/gcd_4+newton_1_2.i[1224,1237]
[2024-11-07 01:20:19,555 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/combinations/gcd_4+newton_1_2.i[2806,2819]
[2024-11-07 01:20:19,557 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-07 01:20:19,568 INFO L204 MainTranslator]: Completed translation
[2024-11-07 01:20:19,569 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:20:19 WrapperNode
[2024-11-07 01:20:19,569 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-07 01:20:19,570 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-07 01:20:19,571 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-07 01:20:19,571 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-07 01:20:19,577 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:20:19" (1/1) ...
[2024-11-07 01:20:19,590 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:20:19" (1/1) ...
[2024-11-07 01:20:19,606 INFO L138 Inliner]: procedures = 28, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 77
[2024-11-07 01:20:19,607 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-07 01:20:19,608 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-07 01:20:19,608 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-07 01:20:19,608 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-07 01:20:19,614 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:20:19" (1/1) ...
[2024-11-07 01:20:19,614 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:20:19" (1/1) ...
[2024-11-07 01:20:19,616 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:20:19" (1/1) ...
[2024-11-07 01:20:19,625 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0].
[2024-11-07 01:20:19,625 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:20:19" (1/1) ...
[2024-11-07 01:20:19,626 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:20:19" (1/1) ...
[2024-11-07 01:20:19,630 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:20:19" (1/1) ...
[2024-11-07 01:20:19,634 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:20:19" (1/1) ...
[2024-11-07 01:20:19,636 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:20:19" (1/1) ...
[2024-11-07 01:20:19,636 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:20:19" (1/1) ...
[2024-11-07 01:20:19,638 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-07 01:20:19,640 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-07 01:20:19,640 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-07 01:20:19,640 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-07 01:20:19,641 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:20:19" (1/1) ...
[2024-11-07 01:20:19,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-07 01:20:19,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 01:20:19,667 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)
[2024-11-07 01:20:19,669 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
[2024-11-07 01:20:19,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-07 01:20:19,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-07 01:20:19,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1
[2024-11-07 01:20:19,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-07 01:20:19,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-07 01:20:19,687 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2024-11-07 01:20:19,688 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2024-11-07 01:20:19,751 INFO L238 CfgBuilder]: Building ICFG
[2024-11-07 01:20:19,752 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-07 01:20:29,324 INFO L? ?]: Removed 26 outVars from TransFormulas that were not future-live.
[2024-11-07 01:20:29,324 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-07 01:20:29,331 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-07 01:20:29,331 INFO L316 CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-07 01:20:29,331 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:20:29 BoogieIcfgContainer
[2024-11-07 01:20:29,331 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-07 01:20:29,333 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-07 01:20:29,333 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-07 01:20:29,337 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-07 01:20:29,337 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:20:19" (1/3) ...
[2024-11-07 01:20:29,337 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7be912b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:20:29, skipping insertion in model container
[2024-11-07 01:20:29,337 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:20:19" (2/3) ...
[2024-11-07 01:20:29,338 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7be912b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:20:29, skipping insertion in model container
[2024-11-07 01:20:29,338 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:20:29" (3/3) ...
[2024-11-07 01:20:29,339 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_4+newton_1_2.i
[2024-11-07 01:20:29,350 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-07 01:20:29,350 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2024-11-07 01:20:29,388 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-07 01:20:29,396 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;@3c42d539, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-07 01:20:29,396 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-11-07 01:20:29,400 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 26 states have (on average 1.4615384615384615) internal successors, (38), 28 states have internal predecessors, (38), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-11-07 01:20:29,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2024-11-07 01:20:29,405 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-07 01:20:29,405 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 01:20:29,406 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-07 01:20:29,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 01:20:29,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1386425161, now seen corresponding path program 1 times
[2024-11-07 01:20:29,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-11-07 01:20:29,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2003802955]
[2024-11-07 01:20:29,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 01:20:29,417 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
[2024-11-07 01:20:29,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-07 01:20:29,420 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)
[2024-11-07 01:20:29,421 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
[2024-11-07 01:20:30,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 01:20:30,332 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-07 01:20:30,335 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-07 01:20:30,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 01:20:30,358 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-07 01:20:30,358 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2024-11-07 01:20:30,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2003802955]
[2024-11-07 01:20:30,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2003802955] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 01:20:30,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 01:20:30,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-07 01:20:30,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143690510]
[2024-11-07 01:20:30,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 01:20:30,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-07 01:20:30,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2024-11-07 01:20:30,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-07 01:20:30,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-07 01:20:30,380 INFO L87 Difference]: Start difference. First operand has 33 states, 26 states have (on average 1.4615384615384615) internal successors, (38), 28 states have internal predecessors, (38), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) 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)
[2024-11-07 01:20:30,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-07 01:20:30,392 INFO L93 Difference]: Finished difference Result 57 states and 74 transitions.
[2024-11-07 01:20:30,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-11-07 01:20:30,394 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
[2024-11-07 01:20:30,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-07 01:20:30,398 INFO L225 Difference]: With dead ends: 57
[2024-11-07 01:20:30,398 INFO L226 Difference]: Without dead ends: 26
[2024-11-07 01:20:30,400 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
[2024-11-07 01:20:30,402 INFO L432 NwaCegarLoop]: 40 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, 40 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
[2024-11-07 01:20:30,402 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-07 01:20:30,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states.
[2024-11-07 01:20:30,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26.
[2024-11-07 01:20:30,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 20 states have (on average 1.35) internal successors, (27), 22 states have internal predecessors, (27), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-07 01:20:30,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions.
[2024-11-07 01:20:30,423 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 32 transitions. Word has length 9
[2024-11-07 01:20:30,424 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-07 01:20:30,424 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 32 transitions.
[2024-11-07 01:20:30,424 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)
[2024-11-07 01:20:30,424 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions.
[2024-11-07 01:20:30,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2024-11-07 01:20:30,424 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-07 01:20:30,424 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 01:20:30,453 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
[2024-11-07 01:20:30,625 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
[2024-11-07 01:20:30,625 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-07 01:20:30,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 01:20:30,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1329166859, now seen corresponding path program 1 times
[2024-11-07 01:20:30,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-11-07 01:20:30,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [898463029]
[2024-11-07 01:20:30,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 01:20:30,626 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
[2024-11-07 01:20:30,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-07 01:20:30,628 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)
[2024-11-07 01:20:30,630 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