./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_unwindbound1.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version d790fecc
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ce57408-88b3-412e-b2a9-784029f34494/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ce57408-88b3-412e-b2a9-784029f34494/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ce57408-88b3-412e-b2a9-784029f34494/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ce57408-88b3-412e-b2a9-784029f34494/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_unwindbound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ce57408-88b3-412e-b2a9-784029f34494/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ce57408-88b3-412e-b2a9-784029f34494/bin/uautomizer-verify-84ZbGMXZE1 --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 7e9492584c051c945baa3a1de8b03a2c00614fb076a66c88b26b81461b005eeb
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-12-01 23:03:38,273 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-12-01 23:03:38,340 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ce57408-88b3-412e-b2a9-784029f34494/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-12-01 23:03:38,346 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-12-01 23:03:38,346 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-12-01 23:03:38,373 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-12-01 23:03:38,373 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-12-01 23:03:38,374 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-12-01 23:03:38,374 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-12-01 23:03:38,374 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-12-01 23:03:38,374 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-12-01 23:03:38,374 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-12-01 23:03:38,375 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-12-01 23:03:38,375 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-12-01 23:03:38,375 INFO L153 SettingsManager]: * Use SBE=true
[2024-12-01 23:03:38,375 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-12-01 23:03:38,375 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-12-01 23:03:38,375 INFO L153 SettingsManager]: * sizeof long=4
[2024-12-01 23:03:38,375 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-12-01 23:03:38,375 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-12-01 23:03:38,376 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-12-01 23:03:38,376 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-12-01 23:03:38,376 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-12-01 23:03:38,376 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-12-01 23:03:38,376 INFO L153 SettingsManager]: * sizeof long double=12
[2024-12-01 23:03:38,376 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-12-01 23:03:38,376 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-12-01 23:03:38,376 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-12-01 23:03:38,376 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-12-01 23:03:38,376 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-01 23:03:38,377 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-01 23:03:38,377 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-01 23:03:38,377 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-01 23:03:38,377 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-12-01 23:03:38,377 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-01 23:03:38,377 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-01 23:03:38,377 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-01 23:03:38,377 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-01 23:03:38,377 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-12-01 23:03:38,377 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-12-01 23:03:38,378 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-12-01 23:03:38,378 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-12-01 23:03:38,378 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-12-01 23:03:38,378 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-12-01 23:03:38,378 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-12-01 23:03:38,378 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-12-01 23:03:38,378 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-12-01 23:03:38,378 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-12-01 23:03:38,378 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ce57408-88b3-412e-b2a9-784029f34494/bin/uautomizer-verify-84ZbGMXZE1
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 -> 7e9492584c051c945baa3a1de8b03a2c00614fb076a66c88b26b81461b005eeb
[2024-12-01 23:03:38,665 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-12-01 23:03:38,675 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-12-01 23:03:38,677 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-12-01 23:03:38,679 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-12-01 23:03:38,679 INFO L274 PluginConnector]: CDTParser initialized
[2024-12-01 23:03:38,681 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ce57408-88b3-412e-b2a9-784029f34494/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_unwindbound1.c
[2024-12-01 23:03:41,485 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ce57408-88b3-412e-b2a9-784029f34494/bin/uautomizer-verify-84ZbGMXZE1/data/8c8fff43a/ec16228505d840bcab32b00b454b73e4/FLAG7818896b0
[2024-12-01 23:03:41,704 INFO L384 CDTParser]: Found 1 translation units.
[2024-12-01 23:03:41,705 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ce57408-88b3-412e-b2a9-784029f34494/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_unwindbound1.c
[2024-12-01 23:03:41,711 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ce57408-88b3-412e-b2a9-784029f34494/bin/uautomizer-verify-84ZbGMXZE1/data/8c8fff43a/ec16228505d840bcab32b00b454b73e4/FLAG7818896b0
[2024-12-01 23:03:42,061 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ce57408-88b3-412e-b2a9-784029f34494/bin/uautomizer-verify-84ZbGMXZE1/data/8c8fff43a/ec16228505d840bcab32b00b454b73e4
[2024-12-01 23:03:42,064 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-12-01 23:03:42,065 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-12-01 23:03:42,067 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-12-01 23:03:42,067 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-12-01 23:03:42,072 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-12-01 23:03:42,073 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:03:42" (1/1) ...
[2024-12-01 23:03:42,074 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42cc1961 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:03:42, skipping insertion in model container
[2024-12-01 23:03:42,074 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:03:42" (1/1) ...
[2024-12-01 23:03:42,086 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-12-01 23:03:42,218 WARN L250 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_1ce57408-88b3-412e-b2a9-784029f34494/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_unwindbound1.c[524,537]
[2024-12-01 23:03:42,241 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-01 23:03:42,251 INFO L200 MainTranslator]: Completed pre-run
[2024-12-01 23:03:42,263 WARN L250 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_1ce57408-88b3-412e-b2a9-784029f34494/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_unwindbound1.c[524,537]
[2024-12-01 23:03:42,272 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-01 23:03:42,289 INFO L204 MainTranslator]: Completed translation
[2024-12-01 23:03:42,289 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:03:42 WrapperNode
[2024-12-01 23:03:42,289 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-12-01 23:03:42,291 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-12-01 23:03:42,291 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-12-01 23:03:42,291 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-12-01 23:03:42,298 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:03:42" (1/1) ...
[2024-12-01 23:03:42,305 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:03:42" (1/1) ...
[2024-12-01 23:03:42,325 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 59
[2024-12-01 23:03:42,325 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-12-01 23:03:42,326 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-12-01 23:03:42,326 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-12-01 23:03:42,326 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-12-01 23:03:42,337 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:03:42" (1/1) ...
[2024-12-01 23:03:42,337 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:03:42" (1/1) ...
[2024-12-01 23:03:42,339 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:03:42" (1/1) ...
[2024-12-01 23:03:42,351 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-12-01 23:03:42,351 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:03:42" (1/1) ...
[2024-12-01 23:03:42,352 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:03:42" (1/1) ...
[2024-12-01 23:03:42,355 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:03:42" (1/1) ...
[2024-12-01 23:03:42,356 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:03:42" (1/1) ...
[2024-12-01 23:03:42,361 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:03:42" (1/1) ...
[2024-12-01 23:03:42,363 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:03:42" (1/1) ...
[2024-12-01 23:03:42,363 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:03:42" (1/1) ...
[2024-12-01 23:03:42,365 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-12-01 23:03:42,366 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-12-01 23:03:42,366 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-12-01 23:03:42,366 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-12-01 23:03:42,367 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:03:42" (1/1) ...
[2024-12-01 23:03:42,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-01 23:03:42,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ce57408-88b3-412e-b2a9-784029f34494/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-01 23:03:42,402 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ce57408-88b3-412e-b2a9-784029f34494/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-12-01 23:03:42,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ce57408-88b3-412e-b2a9-784029f34494/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-12-01 23:03:42,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-12-01 23:03:42,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-12-01 23:03:42,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-12-01 23:03:42,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-12-01 23:03:42,436 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2024-12-01 23:03:42,436 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2024-12-01 23:03:42,502 INFO L234 CfgBuilder]: Building ICFG
[2024-12-01 23:03:42,505 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-12-01 23:03:42,678 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live.
[2024-12-01 23:03:42,678 INFO L283 CfgBuilder]: Performing block encoding
[2024-12-01 23:03:42,688 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-12-01 23:03:42,689 INFO L312 CfgBuilder]: Removed 1 assume(true) statements.
[2024-12-01 23:03:42,689 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:03:42 BoogieIcfgContainer
[2024-12-01 23:03:42,689 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-12-01 23:03:42,692 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-12-01 23:03:42,692 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-12-01 23:03:42,698 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-12-01 23:03:42,698 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 11:03:42" (1/3) ...
[2024-12-01 23:03:42,699 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36f1ff08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:03:42, skipping insertion in model container
[2024-12-01 23:03:42,699 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:03:42" (2/3) ...
[2024-12-01 23:03:42,699 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36f1ff08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:03:42, skipping insertion in model container
[2024-12-01 23:03:42,699 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:03:42" (3/3) ...
[2024-12-01 23:03:42,701 INFO L128 eAbstractionObserver]: Analyzing ICFG prod4br-ll_unwindbound1.c
[2024-12-01 23:03:42,718 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-12-01 23:03:42,720 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG prod4br-ll_unwindbound1.c that has 2 procedures, 23 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2024-12-01 23:03:42,778 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-12-01 23:03:42,791 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;@3915e088, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-12-01 23:03:42,791 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-12-01 23:03:42,795 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 18 states have internal predecessors, (26), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-12-01 23:03:42,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2024-12-01 23:03:42,801 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-01 23:03:42,802 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-01 23:03:42,802 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-01 23:03:42,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-01 23:03:42,808 INFO L85 PathProgramCache]: Analyzing trace with hash -563977895, now seen corresponding path program 1 times
[2024-12-01 23:03:42,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-01 23:03:42,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277738702]
[2024-12-01 23:03:42,816 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-01 23:03:42,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-01 23:03:42,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-01 23:03:42,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-01 23:03:42,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-01 23:03:42,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277738702]
[2024-12-01 23:03:42,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277738702] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-01 23:03:42,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-01 23:03:42,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-01 23:03:42,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551333119]
[2024-12-01 23:03:42,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-01 23:03:42,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-12-01 23:03:42,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-01 23:03:42,957 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-12-01 23:03:42,957 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-12-01 23:03:42,959 INFO L87 Difference]: Start difference. First operand has 23 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 18 states have internal predecessors, (26), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-01 23:03:42,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-01 23:03:42,976 INFO L93 Difference]: Finished difference Result 43 states and 63 transitions.
[2024-12-01 23:03:42,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-12-01 23:03:42,977 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9
[2024-12-01 23:03:42,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-01 23:03:42,982 INFO L225 Difference]: With dead ends: 43
[2024-12-01 23:03:42,983 INFO L226 Difference]: Without dead ends: 19
[2024-12-01 23:03:42,986 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-12-01 23:03:42,989 INFO L435 NwaCegarLoop]: 29 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, 29 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
[2024-12-01 23:03:42,990 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-01 23:03:43,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states.
[2024-12-01 23:03:43,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19.
[2024-12-01 23:03:43,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 15 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-01 23:03:43,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 25 transitions.
[2024-12-01 23:03:43,019 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 25 transitions. Word has length 9
[2024-12-01 23:03:43,019 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-01 23:03:43,019 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 25 transitions.
[2024-12-01 23:03:43,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-01 23:03:43,020 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions.
[2024-12-01 23:03:43,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2024-12-01 23:03:43,020 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-01 23:03:43,021 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-01 23:03:43,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-12-01 23:03:43,021 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-01 23:03:43,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-01 23:03:43,022 INFO L85 PathProgramCache]: Analyzing trace with hash -2015670913, now seen corresponding path program 1 times
[2024-12-01 23:03:43,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-01 23:03:43,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586842652]
[2024-12-01 23:03:43,022 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-01 23:03:43,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-01 23:03:43,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-12-01 23:03:43,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [708498256]
[2024-12-01 23:03:43,053 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-01 23:03:43,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-01 23:03:43,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ce57408-88b3-412e-b2a9-784029f34494/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-01 23:03:43,055 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ce57408-88b3-412e-b2a9-784029f34494/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-01 23:03:43,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ce57408-88b3-412e-b2a9-784029f34494/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-12-01 23:03:43,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-01 23:03:43,124 INFO L256 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 11 conjuncts are in the unsatisfiable core
[2024-12-01 23:03:43,129 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-01 23:03:43,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-01 23:03:43,300 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-01 23:03:43,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-01 23:03:43,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586842652]
[2024-12-01 23:03:43,301 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-12-01 23:03:43,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [708498256]
[2024-12-01 23:03:43,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [708498256] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-01 23:03:43,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-01 23:03:43,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-01 23:03:43,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450898166]
[2024-12-01 23:03:43,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-01 23:03:43,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-01 23:03:43,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-01 23:03:43,304 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-01 23:03:43,304 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-12-01 23:03:43,305 INFO L87 Difference]: Start difference. First operand 19 states and 25 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-01 23:03:43,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-01 23:03:43,417 INFO L93 Difference]: Finished difference Result 34 states and 46 transitions.
[2024-12-01 23:03:43,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-12-01 23:03:43,418 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10
[2024-12-01 23:03:43,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-01 23:03:43,419 INFO L225 Difference]: With dead ends: 34
[2024-12-01 23:03:43,419 INFO L226 Difference]: Without dead ends: 32
[2024-12-01 23:03:43,419 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-12-01 23:03:43,420 INFO L435 NwaCegarLoop]: 14 mSDtfsCounter, 8 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-12-01 23:03:43,421 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 52 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-12-01 23:03:43,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states.
[2024-12-01 23:03:43,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 26.
[2024-12-01 23:03:43,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 19 states have (on average 1.368421052631579) internal successors, (26), 21 states have internal predecessors, (26), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3)
[2024-12-01 23:03:43,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions.
[2024-12-01 23:03:43,430 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 33 transitions. Word has length 10
[2024-12-01 23:03:43,430 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-01 23:03:43,430 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 33 transitions.
[2024-12-01 23:03:43,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-01 23:03:43,430 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions.
[2024-12-01 23:03:43,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2024-12-01 23:03:43,431 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-01 23:03:43,431 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-01 23:03:43,441 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ce57408-88b3-412e-b2a9-784029f34494/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-12-01 23:03:43,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ce57408-88b3-412e-b2a9-784029f34494/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-01 23:03:43,632 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-01 23:03:43,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-01 23:03:43,632 INFO L85 PathProgramCache]: Analyzing trace with hash -2013764289, now seen corresponding path program 1 times
[2024-12-01 23:03:43,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-01 23:03:43,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464016028]
[2024-12-01 23:03:43,632 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-01 23:03:43,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-01 23:03:43,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-01 23:03:43,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-01 23:03:43,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-01 23:03:43,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464016028]
[2024-12-01 23:03:43,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464016028] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-01 23:03:43,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-01 23:03:43,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-01 23:03:43,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920829982]
[2024-12-01 23:03:43,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-01 23:03:43,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-01 23:03:43,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-01 23:03:43,710 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-01 23:03:43,710 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-01 23:03:43,710 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-01 23:03:43,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-01 23:03:43,725 INFO L93 Difference]: Finished difference Result 34 states and 41 transitions.
[2024-12-01 23:03:43,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-12-01 23:03:43,726 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10
[2024-12-01 23:03:43,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-01 23:03:43,728 INFO L225 Difference]: With dead ends: 34
[2024-12-01 23:03:43,728 INFO L226 Difference]: Without dead ends: 26
[2024-12-01 23:03:43,728 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-01 23:03:43,729 INFO L435 NwaCegarLoop]: 23 mSDtfsCounter, 0 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 63 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
[2024-12-01 23:03:43,729 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 63 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-01 23:03:43,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states.
[2024-12-01 23:03:43,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26.
[2024-12-01 23:03:43,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 21 states have internal predecessors, (25), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3)
[2024-12-01 23:03:43,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions.
[2024-12-01 23:03:43,735 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 32 transitions. Word has length 10
[2024-12-01 23:03:43,735 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-01 23:03:43,735 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 32 transitions.
[2024-12-01 23:03:43,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-01 23:03:43,735 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions.
[2024-12-01 23:03:43,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2024-12-01 23:03:43,736 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-01 23:03:43,736 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-01 23:03:43,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-12-01 23:03:43,736 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-01 23:03:43,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-01 23:03:43,737 INFO L85 PathProgramCache]: Analyzing trace with hash -227720052, now seen corresponding path program 1 times
[2024-12-01 23:03:43,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-01 23:03:43,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369214421]
[2024-12-01 23:03:43,737 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-01 23:03:43,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-01 23:03:43,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-12-01 23:03:43,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1808288513]
[2024-12-01 23:03:43,759 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-01 23:03:43,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-01 23:03:43,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ce57408-88b3-412e-b2a9-784029f34494/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-01 23:03:43,761 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ce57408-88b3-412e-b2a9-784029f34494/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-01 23:03:43,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ce57408-88b3-412e-b2a9-784029f34494/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-12-01 23:03:43,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-01 23:03:43,809 INFO L256 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 15 conjuncts are in the unsatisfiable core
[2024-12-01 23:03:43,811 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-01 23:03:44,053 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-01 23:03:44,053 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-01 23:03:44,253 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-01 23:03:44,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-01 23:03:44,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369214421]
[2024-12-01 23:03:44,254 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-12-01 23:03:44,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1808288513]
[2024-12-01 23:03:44,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1808288513] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-01 23:03:44,254 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-12-01 23:03:44,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8] total 14
[2024-12-01 23:03:44,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969331716]
[2024-12-01 23:03:44,254 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-12-01 23:03:44,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states
[2024-12-01 23:03:44,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-01 23:03:44,256 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2024-12-01 23:03:44,256 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182
[2024-12-01 23:03:44,257 INFO L87 Difference]: Start difference. First operand 26 states and 32 transitions. Second operand has 14 states, 12 states have (on average 1.75) internal successors, (21), 11 states have internal predecessors, (21), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-01 23:03:44,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-01 23:03:44,596 INFO L93 Difference]: Finished difference Result 47 states and 64 transitions.
[2024-12-01 23:03:44,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2024-12-01 23:03:44,596 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 1.75) internal successors, (21), 11 states have internal predecessors, (21), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 16
[2024-12-01 23:03:44,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-01 23:03:44,597 INFO L225 Difference]: With dead ends: 47
[2024-12-01 23:03:44,597 INFO L226 Difference]: Without dead ends: 45
[2024-12-01 23:03:44,598 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272
[2024-12-01 23:03:44,599 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 40 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-12-01 23:03:44,599 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 94 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-12-01 23:03:44,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states.
[2024-12-01 23:03:44,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 31.
[2024-12-01 23:03:44,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 25 states have internal predecessors, (28), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4)
[2024-12-01 23:03:44,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 37 transitions.
[2024-12-01 23:03:44,610 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 37 transitions. Word has length 16
[2024-12-01 23:03:44,610 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-01 23:03:44,610 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 37 transitions.
[2024-12-01 23:03:44,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 1.75) internal successors, (21), 11 states have internal predecessors, (21), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-01 23:03:44,611 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions.
[2024-12-01 23:03:44,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2024-12-01 23:03:44,611 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-01 23:03:44,611 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-01 23:03:44,619 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ce57408-88b3-412e-b2a9-784029f34494/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-12-01 23:03:44,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ce57408-88b3-412e-b2a9-784029f34494/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-01 23:03:44,815 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-01 23:03:44,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-01 23:03:44,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1777221571, now seen corresponding path program 1 times
[2024-12-01 23:03:44,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-01 23:03:44,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954655250]
[2024-12-01 23:03:44,816 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-01 23:03:44,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-01 23:03:44,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-01 23:03:44,959 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-01 23:03:44,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-01 23:03:44,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954655250]
[2024-12-01 23:03:44,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954655250] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-01 23:03:44,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2018951290]
[2024-12-01 23:03:44,960 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-01 23:03:44,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-01 23:03:44,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ce57408-88b3-412e-b2a9-784029f34494/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-01 23:03:44,962 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ce57408-88b3-412e-b2a9-784029f34494/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-01 23:03:44,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ce57408-88b3-412e-b2a9-784029f34494/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-12-01 23:03:45,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-01 23:03:45,006 INFO L256 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-12-01 23:03:45,007 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-01 23:03:45,045 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-01 23:03:45,045 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-01 23:03:45,080 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-01 23:03:45,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2018951290] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-01 23:03:45,081 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-12-01 23:03:45,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 5] total 5
[2024-12-01 23:03:45,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248443781]
[2024-12-01 23:03:45,081 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-12-01 23:03:45,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-01 23:03:45,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-01 23:03:45,082 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-01 23:03:45,082 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-12-01 23:03:45,082 INFO L87 Difference]: Start difference. First operand 31 states and 37 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-12-01 23:03:45,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-01 23:03:45,107 INFO L93 Difference]: Finished difference Result 50 states and 61 transitions.
[2024-12-01 23:03:45,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-12-01 23:03:45,108 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19
[2024-12-01 23:03:45,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-01 23:03:45,109 INFO L225 Difference]: With dead ends: 50
[2024-12-01 23:03:45,109 INFO L226 Difference]: Without dead ends: 30
[2024-12-01 23:03:45,109 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 36 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2024-12-01 23:03:45,110 INFO L435 NwaCegarLoop]: 23 mSDtfsCounter, 12 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 47 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
[2024-12-01 23:03:45,110 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 47 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-01 23:03:45,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states.
[2024-12-01 23:03:45,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30.
[2024-12-01 23:03:45,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 24 states have internal predecessors, (27), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3)
[2024-12-01 23:03:45,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions.
[2024-12-01 23:03:45,119 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 19
[2024-12-01 23:03:45,120 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-01 23:03:45,120 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions.
[2024-12-01 23:03:45,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-12-01 23:03:45,120 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions.
[2024-12-01 23:03:45,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2024-12-01 23:03:45,121 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-01 23:03:45,121 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-01 23:03:45,130 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ce57408-88b3-412e-b2a9-784029f34494/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2024-12-01 23:03:45,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ce57408-88b3-412e-b2a9-784029f34494/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-01 23:03:45,321 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-01 23:03:45,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-01 23:03:45,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1775314947, now seen corresponding path program 1 times
[2024-12-01 23:03:45,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-01 23:03:45,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753428661]
[2024-12-01 23:03:45,322 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-01 23:03:45,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-01 23:03:45,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-12-01 23:03:45,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [865406172]
[2024-12-01 23:03:45,348 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-01 23:03:45,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-01 23:03:45,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ce57408-88b3-412e-b2a9-784029f34494/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-01 23:03:45,351 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ce57408-88b3-412e-b2a9-784029f34494/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-01 23:03:45,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ce57408-88b3-412e-b2a9-784029f34494/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-12-01 23:03:45,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-12-01 23:03:45,392 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-12-01 23:03:45,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-12-01 23:03:45,415 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-12-01 23:03:45,415 INFO L340 BasicCegarLoop]: Counterexample is feasible
[2024-12-01 23:03:45,416 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-12-01 23:03:45,425 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ce57408-88b3-412e-b2a9-784029f34494/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2024-12-01 23:03:45,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ce57408-88b3-412e-b2a9-784029f34494/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5
[2024-12-01 23:03:45,620 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1]
[2024-12-01 23:03:45,637 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-12-01 23:03:45,639 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 11:03:45 BoogieIcfgContainer
[2024-12-01 23:03:45,639 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-12-01 23:03:45,639 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-12-01 23:03:45,639 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-12-01 23:03:45,640 INFO L274 PluginConnector]: Witness Printer initialized
[2024-12-01 23:03:45,640 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:03:42" (3/4) ...
[2024-12-01 23:03:45,641 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample
[2024-12-01 23:03:45,672 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 13.
[2024-12-01 23:03:45,721 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ce57408-88b3-412e-b2a9-784029f34494/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml
[2024-12-01 23:03:45,721 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ce57408-88b3-412e-b2a9-784029f34494/bin/uautomizer-verify-84ZbGMXZE1/witness.yml
[2024-12-01 23:03:45,721 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-12-01 23:03:45,722 INFO L158 Benchmark]: Toolchain (without parser) took 3656.43ms. Allocated memory is still 142.6MB. Free memory was 117.4MB in the beginning and 90.3MB in the end (delta: 27.1MB). Peak memory consumption was 29.3MB. Max. memory is 16.1GB.
[2024-12-01 23:03:45,722 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 142.6MB. Free memory is still 82.6MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-12-01 23:03:45,722 INFO L158 Benchmark]: CACSL2BoogieTranslator took 223.15ms. Allocated memory is still 142.6MB. Free memory was 117.1MB in the beginning and 105.9MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-12-01 23:03:45,723 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.90ms. Allocated memory is still 142.6MB. Free memory was 105.7MB in the beginning and 104.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-12-01 23:03:45,723 INFO L158 Benchmark]: Boogie Preprocessor took 39.34ms. Allocated memory is still 142.6MB. Free memory was 104.6MB in the beginning and 103.2MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-12-01 23:03:45,723 INFO L158 Benchmark]: RCFGBuilder took 323.09ms. Allocated memory is still 142.6MB. Free memory was 103.2MB in the beginning and 91.1MB in the end (delta: 12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-12-01 23:03:45,723 INFO L158 Benchmark]: TraceAbstraction took 2947.11ms. Allocated memory is still 142.6MB. Free memory was 90.3MB in the beginning and 95.1MB in the end (delta: -4.7MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-12-01 23:03:45,724 INFO L158 Benchmark]: Witness Printer took 81.58ms. Allocated memory is still 142.6MB. Free memory was 95.1MB in the beginning and 90.3MB in the end (delta: 4.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-12-01 23:03:45,726 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.30ms. Allocated memory is still 142.6MB. Free memory is still 82.6MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 223.15ms. Allocated memory is still 142.6MB. Free memory was 117.1MB in the beginning and 105.9MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 34.90ms. Allocated memory is still 142.6MB. Free memory was 105.7MB in the beginning and 104.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 39.34ms. Allocated memory is still 142.6MB. Free memory was 104.6MB in the beginning and 103.2MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* RCFGBuilder took 323.09ms. Allocated memory is still 142.6MB. Free memory was 103.2MB in the beginning and 91.1MB in the end (delta: 12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* TraceAbstraction took 2947.11ms. Allocated memory is still 142.6MB. Free memory was 90.3MB in the beginning and 95.1MB in the end (delta: -4.7MB). There was no memory consumed. Max. memory is 16.1GB.
* Witness Printer took 81.58ms. Allocated memory is still 142.6MB. Free memory was 95.1MB in the beginning and 90.3MB in the end (delta: 4.8MB). 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
- CounterExampleResult [Line: 14]: a call to reach_error is reachable
a call to reach_error is reachable
We found a FailurePath:
[L19] int counter = 0;
VAL [counter=0]
[L21] int x, y;
[L22] long long a, b, p, q;
[L24] x = __VERIFIER_nondet_int()
[L25] y = __VERIFIER_nondet_int()
[L26] CALL assume_abort_if_not(y >= 1)
[L9] COND FALSE !(!cond)
VAL [counter=0]
[L26] RET assume_abort_if_not(y >= 1)
[L28] a = x
[L29] b = y
[L30] p = 1
[L31] q = 0
VAL [a=2, b=2, counter=0, p=1, q=0, x=2, y=2]
[L33] EXPR counter++
VAL [a=2, b=2, counter=1, p=1, q=0, x=2, y=2]
[L33] COND TRUE counter++<1
[L34] CALL __VERIFIER_assert(q + a * b * p == (long long) x * y)
VAL [\old(cond)=1, counter=1]
[L12] COND FALSE !(!(cond))
VAL [\old(cond)=1, counter=1]
[L34] RET __VERIFIER_assert(q + a * b * p == (long long) x * y)
VAL [a=2, b=2, counter=1, p=1, q=0, x=2, y=2]
[L36] COND FALSE !(!(a != 0 && b != 0))
VAL [a=2, b=2, counter=1, p=1, q=0, x=2, y=2]
[L39] COND TRUE a % 2 == 0 && b % 2 == 0
[L40] a = a / 2
[L41] b = b / 2
[L42] p = 4 * p
VAL [a=1, b=1, counter=1, p=4, q=0, x=2, y=2]
[L33] EXPR counter++
VAL [a=1, b=1, counter=2, p=4, q=0, x=2, y=2]
[L33] COND FALSE !(counter++<1)
[L56] CALL __VERIFIER_assert(q == (long long) x * y)
VAL [\old(cond)=0, counter=2]
[L12] COND TRUE !(cond)
VAL [\old(cond)=0, counter=2]
[L14] reach_error()
VAL [\old(cond)=0, counter=2]
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 2 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.9s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 64 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 60 mSDsluCounter, 285 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 183 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 203 IncrementalHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 102 mSDtfsCounter, 203 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 91 GetRequests, 62 SyntacticMatches, 4 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=4, InterpolantAutomatonStates: 29, 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, 5 MinimizatonAttempts, 20 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 147 NumberOfCodeBlocks, 147 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 110 ConstructedInterpolants, 1 QuantifiedInterpolants, 334 SizeOfPredicates, 10 NumberOfNonLiveVariables, 198 ConjunctsInSsa, 31 ConjunctsInUnsatCore, 8 InterpolantComputations, 3 PerfectInterpolantSequences, 14/19 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, ConComCheckerStatistics: No data available
RESULT: Ultimate proved your program to be incorrect!
[2024-12-01 23:03:45,738 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ce57408-88b3-412e-b2a9-784029f34494/bin/uautomizer-verify-84ZbGMXZE1/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
Writing human readable error path to file UltimateCounterExample.errorpath
Result:
FALSE