./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-regression/test15.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/ldv-regression/test15.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', '939029ab77d002766921942100a4b605c93056ce11f57a75c8adfebda75a0e43']
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/ldv-regression/test15.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 939029ab77d002766921942100a4b605c93056ce11f57a75c8adfebda75a0e43
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-4f9af40
[2024-11-06 22:19:03,706 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-06 22:19:03,797 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-06 22:19:03,801 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-06 22:19:03,801 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-06 22:19:03,815 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-06 22:19:03,815 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-06 22:19:03,815 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-06 22:19:03,816 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-06 22:19:03,816 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-06 22:19:03,816 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-06 22:19:03,816 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-06 22:19:03,816 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-06 22:19:03,816 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-06 22:19:03,816 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-06 22:19:03,817 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-06 22:19:03,817 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-06 22:19:03,817 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-06 22:19:03,817 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-06 22:19:03,817 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-06 22:19:03,817 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-06 22:19:03,817 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-06 22:19:03,817 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-06 22:19:03,817 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-06 22:19:03,817 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-06 22:19:03,817 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-06 22:19:03,818 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-06 22:19:03,818 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-06 22:19:03,818 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-06 22:19:03,818 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-06 22:19:03,818 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-06 22:19:03,818 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-06 22:19:03,818 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 22:19:03,818 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-06 22:19:03,818 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-06 22:19:03,818 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-06 22:19:03,818 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-06 22:19:03,819 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-06 22:19:03,819 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-06 22:19:03,819 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-06 22:19:03,819 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-06 22:19:03,819 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-06 22:19:03,819 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 -> 939029ab77d002766921942100a4b605c93056ce11f57a75c8adfebda75a0e43
[2024-11-06 22:19:03,995 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-06 22:19:04,001 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-06 22:19:04,002 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-06 22:19:04,003 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-06 22:19:04,003 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-06 22:19:04,004 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/test15.c
[2024-11-06 22:19:05,143 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-06 22:19:05,335 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-06 22:19:05,337 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/ldv-regression/test15.c
[2024-11-06 22:19:05,343 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4c276277f/04c31cc6acd3436899b295d82e558015/FLAG140e8817a
[2024-11-06 22:19:05,363 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4c276277f/04c31cc6acd3436899b295d82e558015
[2024-11-06 22:19:05,367 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-06 22:19:05,369 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-06 22:19:05,370 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-06 22:19:05,370 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-06 22:19:05,373 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-06 22:19:05,374 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:19:05" (1/1) ...
[2024-11-06 22:19:05,375 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5103e3af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:19:05, skipping insertion in model container
[2024-11-06 22:19:05,375 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:19:05" (1/1) ...
[2024-11-06 22:19:05,386 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-06 22:19:05,491 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/ldv-regression/test15.c[538,551]
[2024-11-06 22:19:05,494 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-06 22:19:05,502 INFO L200 MainTranslator]: Completed pre-run
[2024-11-06 22:19:05,512 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/ldv-regression/test15.c[538,551]
[2024-11-06 22:19:05,513 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-06 22:19:05,523 INFO L204 MainTranslator]: Completed translation
[2024-11-06 22:19:05,523 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:19:05 WrapperNode
[2024-11-06 22:19:05,524 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-06 22:19:05,524 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-06 22:19:05,525 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-06 22:19:05,525 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-06 22:19:05,530 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:19:05" (1/1) ...
[2024-11-06 22:19:05,534 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:19:05" (1/1) ...
[2024-11-06 22:19:05,546 INFO L138 Inliner]: procedures = 14, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 48
[2024-11-06 22:19:05,546 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-06 22:19:05,547 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-06 22:19:05,547 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-06 22:19:05,547 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-06 22:19:05,552 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:19:05" (1/1) ...
[2024-11-06 22:19:05,552 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:19:05" (1/1) ...
[2024-11-06 22:19:05,554 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:19:05" (1/1) ...
[2024-11-06 22:19:05,563 INFO L175 MemorySlicer]: Split 7 memory accesses to 3 slices as follows [2, 2, 3]. 43 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1].
[2024-11-06 22:19:05,564 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:19:05" (1/1) ...
[2024-11-06 22:19:05,564 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:19:05" (1/1) ...
[2024-11-06 22:19:05,570 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:19:05" (1/1) ...
[2024-11-06 22:19:05,571 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:19:05" (1/1) ...
[2024-11-06 22:19:05,573 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:19:05" (1/1) ...
[2024-11-06 22:19:05,574 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:19:05" (1/1) ...
[2024-11-06 22:19:05,575 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-06 22:19:05,576 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-06 22:19:05,577 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-06 22:19:05,577 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-06 22:19:05,578 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:19:05" (1/1) ...
[2024-11-06 22:19:05,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 22:19:05,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-06 22:19:05,606 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 22:19:05,614 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 22:19:05,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-06 22:19:05,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-06 22:19:05,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-11-06 22:19:05,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2
[2024-11-06 22:19:05,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2024-11-06 22:19:05,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0
[2024-11-06 22:19:05,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1
[2024-11-06 22:19:05,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2
[2024-11-06 22:19:05,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-06 22:19:05,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-06 22:19:05,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0
[2024-11-06 22:19:05,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1
[2024-11-06 22:19:05,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2
[2024-11-06 22:19:05,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-11-06 22:19:05,709 INFO L238 CfgBuilder]: Building ICFG
[2024-11-06 22:19:05,710 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-06 22:19:05,782 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live.
[2024-11-06 22:19:05,782 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-06 22:19:05,790 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-06 22:19:05,790 INFO L316 CfgBuilder]: Removed 0 assume(true) statements.
[2024-11-06 22:19:05,790 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:19:05 BoogieIcfgContainer
[2024-11-06 22:19:05,790 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-06 22:19:05,792 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-06 22:19:05,792 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-06 22:19:05,796 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-06 22:19:05,797 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:19:05" (1/3) ...
[2024-11-06 22:19:05,798 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8aaac9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:19:05, skipping insertion in model container
[2024-11-06 22:19:05,798 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:19:05" (2/3) ...
[2024-11-06 22:19:05,798 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8aaac9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:19:05, skipping insertion in model container
[2024-11-06 22:19:05,798 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:19:05" (3/3) ...
[2024-11-06 22:19:05,800 INFO L112 eAbstractionObserver]: Analyzing ICFG test15.c
[2024-11-06 22:19:05,813 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-06 22:19:05,813 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-06 22:19:05,860 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-06 22:19:05,875 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;@3a6010c8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-06 22:19:05,875 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-06 22:19:05,886 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-06 22:19:05,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6
[2024-11-06 22:19:05,893 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-06 22:19:05,893 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1]
[2024-11-06 22:19:05,893 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 22:19:05,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 22:19:05,900 INFO L85 PathProgramCache]: Analyzing trace with hash 28692805, now seen corresponding path program 1 times
[2024-11-06 22:19:05,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-06 22:19:05,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258796470]
[2024-11-06 22:19:05,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 22:19:05,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-06 22:19:06,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 22:19:06,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-06 22:19:06,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-06 22:19:06,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258796470]
[2024-11-06 22:19:06,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258796470] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-06 22:19:06,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-06 22:19:06,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-06 22:19:06,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073655140]
[2024-11-06 22:19:06,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-06 22:19:06,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-06 22:19:06,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-06 22:19:06,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-06 22:19:06,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-06 22:19:06,300 INFO L87 Difference]: Start difference. First operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 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) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 22:19:06,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 22:19:06,318 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions.
[2024-11-06 22:19:06,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-06 22:19:06,323 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 5
[2024-11-06 22:19:06,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 22:19:06,328 INFO L225 Difference]: With dead ends: 12
[2024-11-06 22:19:06,330 INFO L226 Difference]: Without dead ends: 0
[2024-11-06 22:19:06,332 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-06 22:19:06,333 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-06 22:19:06,335 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-06 22:19:06,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-11-06 22:19:06,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-11-06 22:19:06,352 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 22:19:06,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-11-06 22:19:06,356 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5
[2024-11-06 22:19:06,357 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-06 22:19:06,357 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-11-06 22:19:06,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 22:19:06,357 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-11-06 22:19:06,357 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2024-11-06 22:19:06,359 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-11-06 22:19:06,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-06 22:19:06,362 INFO L407 BasicCegarLoop]: Path program histogram: [1]
[2024-11-06 22:19:06,364 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2024-11-06 22:19:06,368 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-06 22:19:06,375 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:19:06 BoogieIcfgContainer
[2024-11-06 22:19:06,376 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-06 22:19:06,377 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-06 22:19:06,377 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-06 22:19:06,377 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-06 22:19:06,378 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:19:05" (3/4) ...
[2024-11-06 22:19:06,379 INFO L142 WitnessPrinter]: Generating witness for correct program
[2024-11-06 22:19:06,385 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges
[2024-11-06 22:19:06,386 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges
[2024-11-06 22:19:06,386 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges
[2024-11-06 22:19:06,386 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2024-11-06 22:19:06,438 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml
[2024-11-06 22:19:06,439 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml
[2024-11-06 22:19:06,439 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-06 22:19:06,440 INFO L158 Benchmark]: Toolchain (without parser) took 1071.91ms. Allocated memory is still 142.6MB. Free memory was 118.4MB in the beginning and 58.2MB in the end (delta: 60.1MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB.
[2024-11-06 22:19:06,440 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 117.4MB. Free memory is still 81.9MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-06 22:19:06,441 INFO L158 Benchmark]: CACSL2BoogieTranslator took 153.99ms. Allocated memory is still 142.6MB. Free memory was 118.2MB in the beginning and 107.7MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-06 22:19:06,442 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.09ms. Allocated memory is still 142.6MB. Free memory was 107.7MB in the beginning and 106.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-06 22:19:06,442 INFO L158 Benchmark]: Boogie Preprocessor took 28.81ms. Allocated memory is still 142.6MB. Free memory was 106.6MB in the beginning and 105.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-06 22:19:06,442 INFO L158 Benchmark]: RCFGBuilder took 213.85ms. Allocated memory is still 142.6MB. Free memory was 105.2MB in the beginning and 95.2MB in the end (delta: 10.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-11-06 22:19:06,443 INFO L158 Benchmark]: TraceAbstraction took 584.18ms. Allocated memory is still 142.6MB. Free memory was 94.6MB in the beginning and 62.5MB in the end (delta: 32.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB.
[2024-11-06 22:19:06,443 INFO L158 Benchmark]: Witness Printer took 62.60ms. Allocated memory is still 142.6MB. Free memory was 62.5MB in the beginning and 58.2MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-06 22:19:06,444 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.17ms. Allocated memory is still 117.4MB. Free memory is still 81.9MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 153.99ms. Allocated memory is still 142.6MB. Free memory was 118.2MB in the beginning and 107.7MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 22.09ms. Allocated memory is still 142.6MB. Free memory was 107.7MB in the beginning and 106.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 28.81ms. Allocated memory is still 142.6MB. Free memory was 106.6MB in the beginning and 105.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 213.85ms. Allocated memory is still 142.6MB. Free memory was 105.2MB in the beginning and 95.2MB in the end (delta: 10.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* TraceAbstraction took 584.18ms. Allocated memory is still 142.6MB. Free memory was 94.6MB in the beginning and 62.5MB in the end (delta: 32.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB.
* Witness Printer took 62.60ms. Allocated memory is still 142.6MB. Free memory was 62.5MB in the beginning and 58.2MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. 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: 21]: a call to reach_error is unreachable
For all program executions holds that a call to reach_error is unreachable at this location
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8 IncrementalHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 4 mSDtfsCounter, 8 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, InterpolantAutomatonStates: 4, 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, 0.3s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 16 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
- AllSpecificationsHoldResult: All specifications hold
1 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2024-11-06 22:19:06,467 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