./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound100.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/nla-digbench-scaling/lcm2_valuebound100.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', '224124331a9cf6d591dda5cf0214448c28166748d3252ec664da301130d1a9f9']
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/nla-digbench-scaling/lcm2_valuebound100.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 224124331a9cf6d591dda5cf0214448c28166748d3252ec664da301130d1a9f9
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-4f9af40
[2024-11-06 23:11:14,311 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-06 23:11:14,380 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-06 23:11:14,386 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-06 23:11:14,387 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-06 23:11:14,404 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-06 23:11:14,405 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-06 23:11:14,405 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-06 23:11:14,405 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-06 23:11:14,405 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-06 23:11:14,405 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-06 23:11:14,405 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-06 23:11:14,406 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-06 23:11:14,406 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-06 23:11:14,406 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-06 23:11:14,406 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-06 23:11:14,406 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-06 23:11:14,406 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-06 23:11:14,406 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-06 23:11:14,407 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-06 23:11:14,407 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-06 23:11:14,407 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-06 23:11:14,407 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-06 23:11:14,407 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-06 23:11:14,407 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-06 23:11:14,407 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-06 23:11:14,407 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-06 23:11:14,408 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-06 23:11:14,408 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-06 23:11:14,408 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-06 23:11:14,408 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-06 23:11:14,408 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-06 23:11:14,408 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 23:11:14,408 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-06 23:11:14,409 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-06 23:11:14,409 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-06 23:11:14,409 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-06 23:11:14,409 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-06 23:11:14,409 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-06 23:11:14,409 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-06 23:11:14,409 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-06 23:11:14,409 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-06 23:11:14,409 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 -> 224124331a9cf6d591dda5cf0214448c28166748d3252ec664da301130d1a9f9
[2024-11-06 23:11:14,678 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-06 23:11:14,688 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-06 23:11:14,691 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-06 23:11:14,692 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-06 23:11:14,692 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-06 23:11:14,693 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound100.c
[2024-11-06 23:11:15,982 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-06 23:11:16,202 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-06 23:11:16,203 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound100.c
[2024-11-06 23:11:16,211 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/08057e1e6/239a3bfc1dab45158ff6706161e5077f/FLAGd763fc3f2
[2024-11-06 23:11:16,230 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/08057e1e6/239a3bfc1dab45158ff6706161e5077f
[2024-11-06 23:11:16,232 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-06 23:11:16,233 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-06 23:11:16,235 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-06 23:11:16,235 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-06 23:11:16,239 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-06 23:11:16,240 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:11:16" (1/1) ...
[2024-11-06 23:11:16,242 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21bcc168 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:11:16, skipping insertion in model container
[2024-11-06 23:11:16,242 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:11:16" (1/1) ...
[2024-11-06 23:11:16,255 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-06 23:11:16,381 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/nla-digbench-scaling/lcm2_valuebound100.c[537,550]
[2024-11-06 23:11:16,400 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-06 23:11:16,409 INFO L200 MainTranslator]: Completed pre-run
[2024-11-06 23:11:16,419 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/nla-digbench-scaling/lcm2_valuebound100.c[537,550]
[2024-11-06 23:11:16,431 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-06 23:11:16,445 INFO L204 MainTranslator]: Completed translation
[2024-11-06 23:11:16,445 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:11:16 WrapperNode
[2024-11-06 23:11:16,446 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-06 23:11:16,447 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-06 23:11:16,447 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-06 23:11:16,447 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-06 23:11:16,452 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:11:16" (1/1) ...
[2024-11-06 23:11:16,457 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:11:16" (1/1) ...
[2024-11-06 23:11:16,473 INFO L138 Inliner]: procedures = 14, calls = 22, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 53
[2024-11-06 23:11:16,473 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-06 23:11:16,474 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-06 23:11:16,474 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-06 23:11:16,474 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-06 23:11:16,481 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:11:16" (1/1) ...
[2024-11-06 23:11:16,481 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:11:16" (1/1) ...
[2024-11-06 23:11:16,487 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:11:16" (1/1) ...
[2024-11-06 23:11:16,500 INFO L175 MemorySlicer]: Split 9 memory accesses to 2 slices as follows [2, 7]. 78 percent of accesses are in the largest equivalence class. The 9 initializations are split as follows [2, 7]. The 0 writes are split as follows [0, 0].
[2024-11-06 23:11:16,501 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:11:16" (1/1) ...
[2024-11-06 23:11:16,502 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:11:16" (1/1) ...
[2024-11-06 23:11:16,505 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:11:16" (1/1) ...
[2024-11-06 23:11:16,511 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:11:16" (1/1) ...
[2024-11-06 23:11:16,513 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:11:16" (1/1) ...
[2024-11-06 23:11:16,514 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:11:16" (1/1) ...
[2024-11-06 23:11:16,519 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-06 23:11:16,520 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-06 23:11:16,520 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-06 23:11:16,520 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-06 23:11:16,521 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:11:16" (1/1) ...
[2024-11-06 23:11:16,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 23:11:16,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-06 23:11:16,554 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 23:11:16,557 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 23:11:16,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-06 23:11:16,580 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-06 23:11:16,580 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-06 23:11:16,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-06 23:11:16,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-11-06 23:11:16,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-06 23:11:16,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-06 23:11:16,581 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2024-11-06 23:11:16,581 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2024-11-06 23:11:16,639 INFO L238 CfgBuilder]: Building ICFG
[2024-11-06 23:11:16,641 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-06 23:11:16,797 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live.
[2024-11-06 23:11:16,798 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-06 23:11:16,805 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-06 23:11:16,805 INFO L316 CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-06 23:11:16,806 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:11:16 BoogieIcfgContainer
[2024-11-06 23:11:16,806 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-06 23:11:16,808 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-06 23:11:16,809 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-06 23:11:16,812 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-06 23:11:16,813 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:11:16" (1/3) ...
[2024-11-06 23:11:16,813 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@617d0d95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:11:16, skipping insertion in model container
[2024-11-06 23:11:16,814 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:11:16" (2/3) ...
[2024-11-06 23:11:16,814 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@617d0d95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:11:16, skipping insertion in model container
[2024-11-06 23:11:16,814 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:11:16" (3/3) ...
[2024-11-06 23:11:16,815 INFO L112 eAbstractionObserver]: Analyzing ICFG lcm2_valuebound100.c
[2024-11-06 23:11:16,826 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-06 23:11:16,827 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-06 23:11:16,874 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-06 23:11:16,887 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;@49f135bd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-06 23:11:16,888 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-06 23:11:16,892 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 17 states have (on average 1.411764705882353) internal successors, (24), 18 states have internal predecessors, (24), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8)
[2024-11-06 23:11:16,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40
[2024-11-06 23:11:16,898 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-06 23:11:16,899 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-06 23:11:16,899 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 23:11:16,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 23:11:16,903 INFO L85 PathProgramCache]: Analyzing trace with hash 887431403, now seen corresponding path program 1 times
[2024-11-06 23:11:16,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-06 23:11:16,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121533431]
[2024-11-06 23:11:16,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 23:11:16,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-06 23:11:16,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 23:11:17,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-06 23:11:17,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 23:11:17,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-06 23:11:17,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 23:11:17,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13
[2024-11-06 23:11:17,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 23:11:17,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2024-11-06 23:11:17,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 23:11:17,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2024-11-06 23:11:17,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 23:11:17,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28
[2024-11-06 23:11:17,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 23:11:17,117 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked.
[2024-11-06 23:11:17,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-06 23:11:17,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121533431]
[2024-11-06 23:11:17,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121533431] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-06 23:11:17,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-06 23:11:17,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-06 23:11:17,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240213412]
[2024-11-06 23:11:17,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-06 23:11:17,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-06 23:11:17,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-06 23:11:17,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-06 23:11:17,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-06 23:11:17,147 INFO L87 Difference]: Start difference. First operand has 29 states, 17 states have (on average 1.411764705882353) internal successors, (24), 18 states have internal predecessors, (24), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6)
[2024-11-06 23:11:17,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 23:11:17,167 INFO L93 Difference]: Finished difference Result 55 states and 84 transitions.
[2024-11-06 23:11:17,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-11-06 23:11:17,169 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), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) Word has length 39
[2024-11-06 23:11:17,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 23:11:17,174 INFO L225 Difference]: With dead ends: 55
[2024-11-06 23:11:17,174 INFO L226 Difference]: Without dead ends: 25
[2024-11-06 23:11:17,178 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 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 23:11:17,181 INFO L432 NwaCegarLoop]: 36 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, 36 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 23:11:17,184 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-06 23:11:17,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states.
[2024-11-06 23:11:17,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25.
[2024-11-06 23:11:17,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7)
[2024-11-06 23:11:17,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 32 transitions.
[2024-11-06 23:11:17,218 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 32 transitions. Word has length 39
[2024-11-06 23:11:17,219 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-06 23:11:17,219 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 32 transitions.
[2024-11-06 23:11:17,219 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), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6)
[2024-11-06 23:11:17,220 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 32 transitions.
[2024-11-06 23:11:17,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40
[2024-11-06 23:11:17,222 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-06 23:11:17,223 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-06 23:11:17,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-06 23:11:17,223 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 23:11:17,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 23:11:17,224 INFO L85 PathProgramCache]: Analyzing trace with hash -722599373, now seen corresponding path program 1 times
[2024-11-06 23:11:17,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-06 23:11:17,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143578513]
[2024-11-06 23:11:17,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 23:11:17,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-06 23:11:17,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-11-06 23:11:17,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1313588012]
[2024-11-06 23:11:17,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 23:11:17,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-06 23:11:17,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-06 23:11:17,284 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-06 23:11:17,286 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-06 23:11:17,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 23:11:17,411 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 11 conjuncts are in the unsatisfiable core
[2024-11-06 23:11:17,417 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 23:11:17,545 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked.
[2024-11-06 23:11:17,546 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-06 23:11:17,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-06 23:11:17,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143578513]
[2024-11-06 23:11:17,547 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-11-06 23:11:17,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1313588012]
[2024-11-06 23:11:17,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1313588012] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-06 23:11:17,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-06 23:11:17,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-06 23:11:17,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014049137]
[2024-11-06 23:11:17,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-06 23:11:17,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-06 23:11:17,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-06 23:11:17,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-06 23:11:17,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-06 23:11:17,552 INFO L87 Difference]: Start difference. First operand 25 states and 32 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6)
[2024-11-06 23:11:17,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 23:11:17,648 INFO L93 Difference]: Finished difference Result 36 states and 45 transitions.
[2024-11-06 23:11:17,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-06 23:11:17,649 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 39
[2024-11-06 23:11:17,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 23:11:17,650 INFO L225 Difference]: With dead ends: 36
[2024-11-06 23:11:17,650 INFO L226 Difference]: Without dead ends: 33
[2024-11-06 23:11:17,651 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-06 23:11:17,651 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 5 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-06 23:11:17,651 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 96 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-06 23:11:17,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states.
[2024-11-06 23:11:17,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32.
[2024-11-06 23:11:17,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 20 states have internal predecessors, (22), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8)
[2024-11-06 23:11:17,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions.
[2024-11-06 23:11:17,662 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 39 transitions. Word has length 39
[2024-11-06 23:11:17,663 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-06 23:11:17,663 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 39 transitions.
[2024-11-06 23:11:17,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6)
[2024-11-06 23:11:17,663 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions.
[2024-11-06 23:11:17,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48
[2024-11-06 23:11:17,664 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-06 23:11:17,664 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-06 23:11:17,670 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-06 23:11:17,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-06 23:11:17,865 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 23:11:17,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 23:11:17,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1459116230, now seen corresponding path program 1 times
[2024-11-06 23:11:17,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-06 23:11:17,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954373053]
[2024-11-06 23:11:17,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 23:11:17,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-06 23:11:17,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-11-06 23:11:17,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [210144100]
[2024-11-06 23:11:17,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 23:11:17,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-06 23:11:17,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-06 23:11:17,911 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-06 23:11:17,911 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-06 23:11:18,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 23:11:18,117 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 25 conjuncts are in the unsatisfiable core
[2024-11-06 23:11:18,121 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 23:11:18,461 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked.
[2024-11-06 23:11:18,461 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-06 23:11:19,251 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked.
[2024-11-06 23:11:19,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-06 23:11:19,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954373053]
[2024-11-06 23:11:19,251 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-11-06 23:11:19,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [210144100]
[2024-11-06 23:11:19,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [210144100] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-06 23:11:19,251 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-06 23:11:19,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7] total 13
[2024-11-06 23:11:19,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998224176]
[2024-11-06 23:11:19,252 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-06 23:11:19,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2024-11-06 23:11:19,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-06 23:11:19,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2024-11-06 23:11:19,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156
[2024-11-06 23:11:19,253 INFO L87 Difference]: Start difference. First operand 32 states and 39 transitions. Second operand has 13 states, 13 states have (on average 2.076923076923077) internal successors, (27), 11 states have internal predecessors, (27), 5 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10)
[2024-11-06 23:11:23,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 23:11:23,077 INFO L93 Difference]: Finished difference Result 40 states and 51 transitions.
[2024-11-06 23:11:23,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2024-11-06 23:11:23,078 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.076923076923077) internal successors, (27), 11 states have internal predecessors, (27), 5 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) Word has length 47
[2024-11-06 23:11:23,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 23:11:23,078 INFO L225 Difference]: With dead ends: 40
[2024-11-06 23:11:23,078 INFO L226 Difference]: Without dead ends: 0
[2024-11-06 23:11:23,079 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 80 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240
[2024-11-06 23:11:23,080 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 17 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time
[2024-11-06 23:11:23,080 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 147 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time]
[2024-11-06 23:11:23,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-11-06 23:11:23,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-11-06 23:11:23,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-06 23:11:23,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-11-06 23:11:23,081 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 47
[2024-11-06 23:11:23,081 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-06 23:11:23,081 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-11-06 23:11:23,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.076923076923077) internal successors, (27), 11 states have internal predecessors, (27), 5 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10)
[2024-11-06 23:11:23,082 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-11-06 23:11:23,082 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2024-11-06 23:11:23,084 INFO L782 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-11-06 23:11:23,091 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-06 23:11:23,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-06 23:11:23,287 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2024-11-06 23:11:23,289 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2024-11-06 23:11:24,406 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-06 23:11:24,425 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 11:11:24 BoogieIcfgContainer
[2024-11-06 23:11:24,426 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-06 23:11:24,426 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-06 23:11:24,426 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-06 23:11:24,426 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-06 23:11:24,427 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:11:16" (3/4) ...
[2024-11-06 23:11:24,429 INFO L142 WitnessPrinter]: Generating witness for correct program
[2024-11-06 23:11:24,433 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not
[2024-11-06 23:11:24,434 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert
[2024-11-06 23:11:24,437 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges
[2024-11-06 23:11:24,437 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges
[2024-11-06 23:11:24,437 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges
[2024-11-06 23:11:24,437 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2024-11-06 23:11:24,437 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2024-11-06 23:11:24,502 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml
[2024-11-06 23:11:24,503 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml
[2024-11-06 23:11:24,503 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-06 23:11:24,504 INFO L158 Benchmark]: Toolchain (without parser) took 8270.48ms. Allocated memory is still 100.7MB. Free memory was 77.3MB in the beginning and 59.8MB in the end (delta: 17.6MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB.
[2024-11-06 23:11:24,505 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 83.9MB. Free memory is still 48.0MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-06 23:11:24,507 INFO L158 Benchmark]: CACSL2BoogieTranslator took 211.36ms. Allocated memory is still 100.7MB. Free memory was 77.2MB in the beginning and 66.0MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-06 23:11:24,507 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.54ms. Allocated memory is still 100.7MB. Free memory was 66.0MB in the beginning and 64.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-06 23:11:24,508 INFO L158 Benchmark]: Boogie Preprocessor took 45.54ms. Allocated memory is still 100.7MB. Free memory was 64.8MB in the beginning and 63.5MB in the end (delta: 1.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-06 23:11:24,508 INFO L158 Benchmark]: RCFGBuilder took 286.18ms. Allocated memory is still 100.7MB. Free memory was 63.5MB in the beginning and 53.1MB in the end (delta: 10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-06 23:11:24,508 INFO L158 Benchmark]: TraceAbstraction took 7617.15ms. Allocated memory is still 100.7MB. Free memory was 52.6MB in the beginning and 64.8MB in the end (delta: -12.1MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-06 23:11:24,508 INFO L158 Benchmark]: Witness Printer took 77.06ms. Allocated memory is still 100.7MB. Free memory was 64.8MB in the beginning and 59.8MB in the end (delta: 5.0MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-06 23:11:24,512 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.18ms. Allocated memory is still 83.9MB. Free memory is still 48.0MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 211.36ms. Allocated memory is still 100.7MB. Free memory was 77.2MB in the beginning and 66.0MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 26.54ms. Allocated memory is still 100.7MB. Free memory was 66.0MB in the beginning and 64.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 45.54ms. Allocated memory is still 100.7MB. Free memory was 64.8MB in the beginning and 63.5MB in the end (delta: 1.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* RCFGBuilder took 286.18ms. Allocated memory is still 100.7MB. Free memory was 63.5MB in the beginning and 53.1MB in the end (delta: 10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* TraceAbstraction took 7617.15ms. Allocated memory is still 100.7MB. Free memory was 52.6MB in the beginning and 64.8MB in the end (delta: -12.1MB). There was no memory consumed. Max. memory is 16.1GB.
* Witness Printer took 77.06ms. Allocated memory is still 100.7MB. Free memory was 64.8MB in the beginning and 59.8MB in the end (delta: 5.0MB). 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
- PositiveResult [Line: 14]: a call to reach_error is unreachable
For all program executions holds that a call to reach_error is unreachable at this location
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 3 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.4s, OverallIterations: 3, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 27 SdHoareTripleChecker+Valid, 3.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22 mSDsluCounter, 279 SdHoareTripleChecker+Invalid, 3.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 201 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 242 IncrementalHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 78 mSDtfsCounter, 242 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 155 GetRequests, 135 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=2, InterpolantAutomatonStates: 18, 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, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 211 NumberOfCodeBlocks, 211 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 168 ConstructedInterpolants, 0 QuantifiedInterpolants, 415 SizeOfPredicates, 2 NumberOfNonLiveVariables, 234 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 241/248 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
- AllSpecificationsHoldResult: All specifications hold
1 specifications checked. All of them hold
- InvariantResult [Line: 37]: Loop Invariant
Derived loop invariant: ((((((unsigned long long) a * b) % 2147483648) * 2) == (((__int128) ((unsigned long long) v * y) + ((unsigned long long) u * x)) % 4294967296)) && (a <= 65535))
- ProcedureContractResult [Line: 8]: Procedure Contract for assume_abort_if_not
Derived contract for procedure assume_abort_if_not. Ensures: (cond != 0)
- ProcedureContractResult [Line: 11]: Procedure Contract for __VERIFIER_assert
Derived contract for procedure __VERIFIER_assert. Requires: (1 <= cond) Ensures: (1 <= cond)
RESULT: Ultimate proved your program to be correct!
[2024-11-06 23:11:24,531 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE