./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/test28-1.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version 9bd2c7ff
Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f603d5c3-b80f-4aba-859a-19d89ec95a0e/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f603d5c3-b80f-4aba-859a-19d89ec95a0e/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f603d5c3-b80f-4aba-859a-19d89ec95a0e/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f603d5c3-b80f-4aba-859a-19d89ec95a0e/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-regression/test28-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f603d5c3-b80f-4aba-859a-19d89ec95a0e/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f603d5c3-b80f-4aba-859a-19d89ec95a0e/bin/uautomizer-verify-uCwYo4JHxu --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 d382873608f47f58e61612d5190ceb3fce961896aaa2cb7a799c0e7d7be98b0e
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-9bd2c7f
[2023-11-19 07:49:49,023 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-11-19 07:49:49,144 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f603d5c3-b80f-4aba-859a-19d89ec95a0e/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf
[2023-11-19 07:49:49,160 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-11-19 07:49:49,161 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-19 07:49:49,207 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-19 07:49:49,208 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-19 07:49:49,209 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-19 07:49:49,210 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-19 07:49:49,216 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-19 07:49:49,218 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-19 07:49:49,219 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-11-19 07:49:49,219 INFO L153 SettingsManager]: * Use SBE=true
[2023-11-19 07:49:49,221 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-19 07:49:49,222 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2023-11-19 07:49:49,223 INFO L153 SettingsManager]: * sizeof long=4
[2023-11-19 07:49:49,223 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2023-11-19 07:49:49,223 INFO L153 SettingsManager]: * sizeof POINTER=4
[2023-11-19 07:49:49,224 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-11-19 07:49:49,225 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2023-11-19 07:49:49,225 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-19 07:49:49,226 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2023-11-19 07:49:49,226 INFO L153 SettingsManager]: * sizeof long double=12
[2023-11-19 07:49:49,227 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2023-11-19 07:49:49,227 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-11-19 07:49:49,228 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-19 07:49:49,228 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-11-19 07:49:49,229 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-11-19 07:49:49,229 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:49:49,229 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-19 07:49:49,231 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-11-19 07:49:49,231 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2023-11-19 07:49:49,231 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2023-11-19 07:49:49,232 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-19 07:49:49,232 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-19 07:49:49,232 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-19 07:49:49,232 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-11-19 07:49:49,233 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-19 07:49:49,233 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-11-19 07:49:49,233 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f603d5c3-b80f-4aba-859a-19d89ec95a0e/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f603d5c3-b80f-4aba-859a-19d89ec95a0e/bin/uautomizer-verify-uCwYo4JHxu
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d382873608f47f58e61612d5190ceb3fce961896aaa2cb7a799c0e7d7be98b0e
[2023-11-19 07:49:49,627 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-19 07:49:49,657 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-19 07:49:49,661 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-19 07:49:49,663 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-11-19 07:49:49,663 INFO L274 PluginConnector]: CDTParser initialized
[2023-11-19 07:49:49,665 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f603d5c3-b80f-4aba-859a-19d89ec95a0e/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/ldv-regression/test28-1.c
[2023-11-19 07:49:52,992 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-11-19 07:49:53,223 INFO L384 CDTParser]: Found 1 translation units.
[2023-11-19 07:49:53,223 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f603d5c3-b80f-4aba-859a-19d89ec95a0e/sv-benchmarks/c/ldv-regression/test28-1.c
[2023-11-19 07:49:53,232 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f603d5c3-b80f-4aba-859a-19d89ec95a0e/bin/uautomizer-verify-uCwYo4JHxu/data/931493108/2d2030389fb6474c9521479e2bfa6a27/FLAG287df76f7
[2023-11-19 07:49:53,249 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f603d5c3-b80f-4aba-859a-19d89ec95a0e/bin/uautomizer-verify-uCwYo4JHxu/data/931493108/2d2030389fb6474c9521479e2bfa6a27
[2023-11-19 07:49:53,253 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-19 07:49:53,255 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-19 07:49:53,256 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-19 07:49:53,257 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-19 07:49:53,264 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-19 07:49:53,265 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:49:53" (1/1) ...
[2023-11-19 07:49:53,266 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29fe6cd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:53, skipping insertion in model container
[2023-11-19 07:49:53,266 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:49:53" (1/1) ...
[2023-11-19 07:49:53,294 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-19 07:49:53,529 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f603d5c3-b80f-4aba-859a-19d89ec95a0e/sv-benchmarks/c/ldv-regression/test28-1.c[613,626]
[2023-11-19 07:49:53,535 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:49:53,548 INFO L202 MainTranslator]: Completed pre-run
[2023-11-19 07:49:53,568 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f603d5c3-b80f-4aba-859a-19d89ec95a0e/sv-benchmarks/c/ldv-regression/test28-1.c[613,626]
[2023-11-19 07:49:53,570 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:49:53,588 INFO L206 MainTranslator]: Completed translation
[2023-11-19 07:49:53,588 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:53 WrapperNode
[2023-11-19 07:49:53,588 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-19 07:49:53,592 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-19 07:49:53,592 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-19 07:49:53,592 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-19 07:49:53,606 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:53" (1/1) ...
[2023-11-19 07:49:53,615 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:53" (1/1) ...
[2023-11-19 07:49:53,636 INFO L138 Inliner]: procedures = 13, calls = 19, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 52
[2023-11-19 07:49:53,638 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-19 07:49:53,638 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-19 07:49:53,639 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-19 07:49:53,639 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-11-19 07:49:53,648 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:53" (1/1) ...
[2023-11-19 07:49:53,649 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:53" (1/1) ...
[2023-11-19 07:49:53,664 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:53" (1/1) ...
[2023-11-19 07:49:53,664 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:53" (1/1) ...
[2023-11-19 07:49:53,669 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:53" (1/1) ...
[2023-11-19 07:49:53,671 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:53" (1/1) ...
[2023-11-19 07:49:53,672 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:53" (1/1) ...
[2023-11-19 07:49:53,673 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:53" (1/1) ...
[2023-11-19 07:49:53,675 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-19 07:49:53,676 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-19 07:49:53,677 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-11-19 07:49:53,679 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-11-19 07:49:53,681 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:53" (1/1) ...
[2023-11-19 07:49:53,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:49:53,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f603d5c3-b80f-4aba-859a-19d89ec95a0e/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:49:53,722 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f603d5c3-b80f-4aba-859a-19d89ec95a0e/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-11-19 07:49:53,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f603d5c3-b80f-4aba-859a-19d89ec95a0e/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-11-19 07:49:53,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-19 07:49:53,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2023-11-19 07:49:53,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-11-19 07:49:53,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2023-11-19 07:49:53,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-19 07:49:53,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-19 07:49:53,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2023-11-19 07:49:53,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-11-19 07:49:53,858 INFO L236 CfgBuilder]: Building ICFG
[2023-11-19 07:49:53,860 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-19 07:49:54,094 INFO L277 CfgBuilder]: Performing block encoding
[2023-11-19 07:49:54,102 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-19 07:49:54,102 INFO L302 CfgBuilder]: Removed 0 assume(true) statements.
[2023-11-19 07:49:54,106 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:49:54 BoogieIcfgContainer
[2023-11-19 07:49:54,106 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-19 07:49:54,109 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-19 07:49:54,109 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2023-11-19 07:49:54,113 INFO L274 PluginConnector]: TraceAbstraction initialized
[2023-11-19 07:49:54,114 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:49:53" (1/3) ...
[2023-11-19 07:49:54,115 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6442d047 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:49:54, skipping insertion in model container
[2023-11-19 07:49:54,116 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:53" (2/3) ...
[2023-11-19 07:49:54,116 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6442d047 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:49:54, skipping insertion in model container
[2023-11-19 07:49:54,117 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:49:54" (3/3) ...
[2023-11-19 07:49:54,119 INFO L112 eAbstractionObserver]: Analyzing ICFG test28-1.c
[2023-11-19 07:49:54,141 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-19 07:49:54,142 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-11-19 07:49:54,212 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-19 07:49:54,220 INFO L357 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, mHoare=true, 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;@17c9b79a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-11-19 07:49:54,220 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-11-19 07:49:54,225 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:49:54,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2023-11-19 07:49:54,232 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:49:54,233 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:49:54,234 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-19 07:49:54,241 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:49:54,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1804966473, now seen corresponding path program 1 times
[2023-11-19 07:49:54,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:49:54,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345416904]
[2023-11-19 07:49:54,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:49:54,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:49:54,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 07:49:54,387 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-19 07:49:54,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 07:49:54,431 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-19 07:49:54,433 INFO L360 BasicCegarLoop]: Counterexample is feasible
[2023-11-19 07:49:54,435 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2023-11-19 07:49:54,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-11-19 07:49:54,442 INFO L445 BasicCegarLoop]: Path program histogram: [1]
[2023-11-19 07:49:54,447 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2023-11-19 07:49:54,463 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short7 could not be translated
[2023-11-19 07:49:54,465 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated
[2023-11-19 07:49:54,480 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:49:54 BoogieIcfgContainer
[2023-11-19 07:49:54,480 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-11-19 07:49:54,480 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2023-11-19 07:49:54,480 INFO L270 PluginConnector]: Initializing Witness Printer...
[2023-11-19 07:49:54,481 INFO L274 PluginConnector]: Witness Printer initialized
[2023-11-19 07:49:54,481 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:49:54" (3/4) ...
[2023-11-19 07:49:54,482 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample
[2023-11-19 07:49:54,486 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short7 could not be translated
[2023-11-19 07:49:54,486 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated
[2023-11-19 07:49:54,515 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f603d5c3-b80f-4aba-859a-19d89ec95a0e/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml
[2023-11-19 07:49:54,516 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2023-11-19 07:49:54,517 INFO L158 Benchmark]: Toolchain (without parser) took 1261.97ms. Allocated memory is still 161.5MB. Free memory was 116.3MB in the beginning and 75.8MB in the end (delta: 40.5MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB.
[2023-11-19 07:49:54,517 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 161.5MB. Free memory is still 135.8MB. There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 07:49:54,518 INFO L158 Benchmark]: CACSL2BoogieTranslator took 333.49ms. Allocated memory is still 161.5MB. Free memory was 116.3MB in the beginning and 105.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2023-11-19 07:49:54,519 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.99ms. Allocated memory is still 161.5MB. Free memory was 105.9MB in the beginning and 104.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-19 07:49:54,519 INFO L158 Benchmark]: Boogie Preprocessor took 37.31ms. Allocated memory is still 161.5MB. Free memory was 104.5MB in the beginning and 103.8MB in the end (delta: 719.1kB). There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 07:49:54,520 INFO L158 Benchmark]: RCFGBuilder took 429.78ms. Allocated memory is still 161.5MB. Free memory was 103.8MB in the beginning and 92.6MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2023-11-19 07:49:54,520 INFO L158 Benchmark]: TraceAbstraction took 370.80ms. Allocated memory is still 161.5MB. Free memory was 91.9MB in the beginning and 77.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
[2023-11-19 07:49:54,521 INFO L158 Benchmark]: Witness Printer took 35.34ms. Allocated memory is still 161.5MB. Free memory was 77.2MB in the beginning and 75.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 07:49:54,524 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.34ms. Allocated memory is still 161.5MB. Free memory is still 135.8MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 333.49ms. Allocated memory is still 161.5MB. Free memory was 116.3MB in the beginning and 105.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 45.99ms. Allocated memory is still 161.5MB. Free memory was 105.9MB in the beginning and 104.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 37.31ms. Allocated memory is still 161.5MB. Free memory was 104.5MB in the beginning and 103.8MB in the end (delta: 719.1kB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 429.78ms. Allocated memory is still 161.5MB. Free memory was 103.8MB in the beginning and 92.6MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
* TraceAbstraction took 370.80ms. Allocated memory is still 161.5MB. Free memory was 91.9MB in the beginning and 77.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
* Witness Printer took 35.34ms. Allocated memory is still 161.5MB. Free memory was 77.2MB in the beginning and 75.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator:
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: IdentifierExpression #t~short7 could not be translated
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated
- GenericResult: Unfinished Backtranslation
The program execution was not completely translated back.
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: IdentifierExpression #t~short7 could not be translated
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated
- GenericResult: Unfinished Backtranslation
The program execution was not completely translated back.
* 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
- CounterExampleResult [Line: 29]: a call to reach_error is reachable
a call to reach_error is reachable
We found a FailurePath:
[L14] struct dummy d1, d2;
[L15] int n = __VERIFIER_nondet_int();
[L16] struct dummy *pd = n ? &d1 : &d2;
VAL [d1={5:0}, d2={6:0}, n=0, pd={6:0}]
[L17] COND TRUE pd == &d2
[L18] pd->a = 0
[L19] pd->b = __VERIFIER_nondet_int()
[L23] pd == &d2 && d2.b != 0
[L23] EXPR d2.b
[L23] pd == &d2 && d2.b != 0
VAL [d1={5:0}, d2={6:0}, n=0, pd={6:0}]
[L23] COND TRUE pd == &d2 && d2.b != 0
[L29] reach_error()
VAL [d1={5:0}, d2={6:0}, n=0, pd={6:0}]
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be incorrect!
[2023-11-19 07:49:54,564 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f603d5c3-b80f-4aba-859a-19d89ec95a0e/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Writing human readable error path to file UltimateCounterExample.errorpath
Result:
FALSE