./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound1.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version 9bd2c7ff
Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1560823-1a6b-493b-bbe2-b25cf24565d4/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1560823-1a6b-493b-bbe2-b25cf24565d4/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_f1560823-1a6b-493b-bbe2-b25cf24565d4/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1560823-1a6b-493b-bbe2-b25cf24565d4/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1560823-1a6b-493b-bbe2-b25cf24565d4/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_f1560823-1a6b-493b-bbe2-b25cf24565d4/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 9b373cbe6be5259af58bbd621acc4a598f97350f51d1b5f9aaeeeabd984828c1
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-9bd2c7f
[2023-11-19 07:38:36,197 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-11-19 07:38:36,315 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1560823-1a6b-493b-bbe2-b25cf24565d4/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf
[2023-11-19 07:38:36,327 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-11-19 07:38:36,328 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-19 07:38:36,365 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-19 07:38:36,366 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-19 07:38:36,367 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-19 07:38:36,368 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-19 07:38:36,373 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-19 07:38:36,374 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-19 07:38:36,374 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-11-19 07:38:36,375 INFO L153 SettingsManager]: * Use SBE=true
[2023-11-19 07:38:36,376 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-19 07:38:36,377 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2023-11-19 07:38:36,377 INFO L153 SettingsManager]: * sizeof long=4
[2023-11-19 07:38:36,378 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2023-11-19 07:38:36,378 INFO L153 SettingsManager]: * sizeof POINTER=4
[2023-11-19 07:38:36,378 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-11-19 07:38:36,379 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2023-11-19 07:38:36,379 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-19 07:38:36,380 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2023-11-19 07:38:36,380 INFO L153 SettingsManager]: * sizeof long double=12
[2023-11-19 07:38:36,381 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2023-11-19 07:38:36,381 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-11-19 07:38:36,382 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-19 07:38:36,382 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-11-19 07:38:36,383 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-11-19 07:38:36,383 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:38:36,384 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-19 07:38:36,385 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-11-19 07:38:36,385 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2023-11-19 07:38:36,386 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2023-11-19 07:38:36,386 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-19 07:38:36,386 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-19 07:38:36,386 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-19 07:38:36,387 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-11-19 07:38:36,387 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-19 07:38:36,387 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-11-19 07:38:36,387 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_f1560823-1a6b-493b-bbe2-b25cf24565d4/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1560823-1a6b-493b-bbe2-b25cf24565d4/bin/uautomizer-verify-uCwYo4JHxu
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9b373cbe6be5259af58bbd621acc4a598f97350f51d1b5f9aaeeeabd984828c1
[2023-11-19 07:38:36,676 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-19 07:38:36,708 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-19 07:38:36,710 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-19 07:38:36,713 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-11-19 07:38:36,713 INFO L274 PluginConnector]: CDTParser initialized
[2023-11-19 07:38:36,715 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1560823-1a6b-493b-bbe2-b25cf24565d4/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound1.i
[2023-11-19 07:38:39,782 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-11-19 07:38:40,087 INFO L384 CDTParser]: Found 1 translation units.
[2023-11-19 07:38:40,088 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1560823-1a6b-493b-bbe2-b25cf24565d4/sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound1.i
[2023-11-19 07:38:40,100 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1560823-1a6b-493b-bbe2-b25cf24565d4/bin/uautomizer-verify-uCwYo4JHxu/data/9300cc220/16ff3c5e849e439a8d597338680e5b25/FLAG287819b82
[2023-11-19 07:38:40,124 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1560823-1a6b-493b-bbe2-b25cf24565d4/bin/uautomizer-verify-uCwYo4JHxu/data/9300cc220/16ff3c5e849e439a8d597338680e5b25
[2023-11-19 07:38:40,132 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-19 07:38:40,134 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-19 07:38:40,139 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-19 07:38:40,139 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-19 07:38:40,147 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-19 07:38:40,148 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:38:40" (1/1) ...
[2023-11-19 07:38:40,149 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fe228d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:40, skipping insertion in model container
[2023-11-19 07:38:40,149 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:38:40" (1/1) ...
[2023-11-19 07:38:40,178 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-19 07:38:40,395 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_f1560823-1a6b-493b-bbe2-b25cf24565d4/sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound1.i[951,964]
[2023-11-19 07:38:40,416 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:38:40,429 INFO L202 MainTranslator]: Completed pre-run
[2023-11-19 07:38:40,446 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_f1560823-1a6b-493b-bbe2-b25cf24565d4/sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound1.i[951,964]
[2023-11-19 07:38:40,453 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:38:40,470 INFO L206 MainTranslator]: Completed translation
[2023-11-19 07:38:40,471 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:40 WrapperNode
[2023-11-19 07:38:40,471 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-19 07:38:40,473 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-19 07:38:40,473 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-19 07:38:40,473 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-19 07:38:40,482 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:40" (1/1) ...
[2023-11-19 07:38:40,490 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:40" (1/1) ...
[2023-11-19 07:38:40,511 INFO L138 Inliner]: procedures = 16, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 51
[2023-11-19 07:38:40,512 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-19 07:38:40,513 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-19 07:38:40,513 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-19 07:38:40,514 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-11-19 07:38:40,524 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:40" (1/1) ...
[2023-11-19 07:38:40,524 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:40" (1/1) ...
[2023-11-19 07:38:40,526 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:40" (1/1) ...
[2023-11-19 07:38:40,526 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:40" (1/1) ...
[2023-11-19 07:38:40,530 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:40" (1/1) ...
[2023-11-19 07:38:40,534 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:40" (1/1) ...
[2023-11-19 07:38:40,536 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:40" (1/1) ...
[2023-11-19 07:38:40,537 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:40" (1/1) ...
[2023-11-19 07:38:40,539 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-19 07:38:40,540 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-19 07:38:40,541 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-11-19 07:38:40,541 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-11-19 07:38:40,542 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:40" (1/1) ...
[2023-11-19 07:38:40,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:38:40,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1560823-1a6b-493b-bbe2-b25cf24565d4/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:38:40,595 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1560823-1a6b-493b-bbe2-b25cf24565d4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-11-19 07:38:40,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1560823-1a6b-493b-bbe2-b25cf24565d4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-11-19 07:38:40,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-19 07:38:40,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2023-11-19 07:38:40,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-19 07:38:40,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-19 07:38:40,646 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2023-11-19 07:38:40,646 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2023-11-19 07:38:40,724 INFO L236 CfgBuilder]: Building ICFG
[2023-11-19 07:38:40,730 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-19 07:38:40,995 INFO L277 CfgBuilder]: Performing block encoding
[2023-11-19 07:38:41,003 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-19 07:38:41,003 INFO L302 CfgBuilder]: Removed 2 assume(true) statements.
[2023-11-19 07:38:41,014 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:38:41 BoogieIcfgContainer
[2023-11-19 07:38:41,014 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-19 07:38:41,017 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-19 07:38:41,019 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2023-11-19 07:38:41,023 INFO L274 PluginConnector]: TraceAbstraction initialized
[2023-11-19 07:38:41,024 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:38:40" (1/3) ...
[2023-11-19 07:38:41,025 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19754e18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:38:41, skipping insertion in model container
[2023-11-19 07:38:41,025 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:40" (2/3) ...
[2023-11-19 07:38:41,026 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19754e18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:38:41, skipping insertion in model container
[2023-11-19 07:38:41,026 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:38:41" (3/3) ...
[2023-11-19 07:38:41,027 INFO L112 eAbstractionObserver]: Analyzing ICFG divbin2_unwindbound1.i
[2023-11-19 07:38:41,051 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-19 07:38:41,052 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-11-19 07:38:41,148 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-19 07:38:41,161 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;@63117015, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-11-19 07:38:41,162 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-11-19 07:38:41,167 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 16 states have (on average 1.5625) internal successors, (25), 17 states have internal predecessors, (25), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2023-11-19 07:38:41,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2023-11-19 07:38:41,177 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:38:41,179 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:38:41,180 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-19 07:38:41,189 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:38:41,189 INFO L85 PathProgramCache]: Analyzing trace with hash 553144752, now seen corresponding path program 1 times
[2023-11-19 07:38:41,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:38:41,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215227207]
[2023-11-19 07:38:41,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:38:41,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:38:41,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:38:41,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:38:41,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215227207]
[2023-11-19 07:38:41,358 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic
[2023-11-19 07:38:41,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1122067265]
[2023-11-19 07:38:41,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:38:41,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:38:41,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1560823-1a6b-493b-bbe2-b25cf24565d4/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:38:41,361 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1560823-1a6b-493b-bbe2-b25cf24565d4/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-19 07:38:41,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1560823-1a6b-493b-bbe2-b25cf24565d4/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2023-11-19 07:38:41,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:38:41,430 INFO L262 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-11-19 07:38:41,434 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:38:41,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:38:41,459 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 07:38:41,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1122067265] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:38:41,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:38:41,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-19 07:38:41,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961105484]
[2023-11-19 07:38:41,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:38:41,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-11-19 07:38:41,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:38:41,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-11-19 07:38:41,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-11-19 07:38:41,513 INFO L87 Difference]: Start difference. First operand has 21 states, 16 states have (on average 1.5625) internal successors, (25), 17 states have internal predecessors, (25), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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)
[2023-11-19 07:38:41,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:38:41,535 INFO L93 Difference]: Finished difference Result 37 states and 52 transitions.
[2023-11-19 07:38:41,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2023-11-19 07:38:41,538 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 8
[2023-11-19 07:38:41,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:38:41,557 INFO L225 Difference]: With dead ends: 37
[2023-11-19 07:38:41,557 INFO L226 Difference]: Without dead ends: 17
[2023-11-19 07:38:41,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-11-19 07:38:41,581 INFO L413 NwaCegarLoop]: 26 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, 26 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
[2023-11-19 07:38:41,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-19 07:38:41,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states.
[2023-11-19 07:38:41,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17.
[2023-11-19 07:38:41,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 14 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2023-11-19 07:38:41,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 22 transitions.
[2023-11-19 07:38:41,636 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 22 transitions. Word has length 8
[2023-11-19 07:38:41,637 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:38:41,637 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 22 transitions.
[2023-11-19 07:38:41,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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)
[2023-11-19 07:38:41,637 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 22 transitions.
[2023-11-19 07:38:41,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2023-11-19 07:38:41,638 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:38:41,638 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:38:41,656 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1560823-1a6b-493b-bbe2-b25cf24565d4/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2023-11-19 07:38:41,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1560823-1a6b-493b-bbe2-b25cf24565d4/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0
[2023-11-19 07:38:41,844 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-19 07:38:41,845 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:38:41,845 INFO L85 PathProgramCache]: Analyzing trace with hash -803059042, now seen corresponding path program 1 times
[2023-11-19 07:38:41,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:38:41,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153052128]
[2023-11-19 07:38:41,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:38:41,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:38:41,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:38:41,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:38:41,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153052128]
[2023-11-19 07:38:41,878 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic
[2023-11-19 07:38:41,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1564314839]
[2023-11-19 07:38:41,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:38:41,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:38:41,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1560823-1a6b-493b-bbe2-b25cf24565d4/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:38:41,881 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1560823-1a6b-493b-bbe2-b25cf24565d4/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-19 07:38:41,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1560823-1a6b-493b-bbe2-b25cf24565d4/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2023-11-19 07:38:41,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:38:41,973 INFO L262 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-11-19 07:38:41,975 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:38:42,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:38:42,044 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 07:38:42,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1564314839] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:38:42,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:38:42,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-11-19 07:38:42,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872441363]
[2023-11-19 07:38:42,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:38:42,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-19 07:38:42,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:38:42,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-19 07:38:42,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-19 07:38:42,051 INFO L87 Difference]: Start difference. First operand 17 states and 22 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)
[2023-11-19 07:38:42,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:38:42,081 INFO L93 Difference]: Finished difference Result 31 states and 40 transitions.
[2023-11-19 07:38:42,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2023-11-19 07:38:42,081 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
[2023-11-19 07:38:42,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:38:42,082 INFO L225 Difference]: With dead ends: 31
[2023-11-19 07:38:42,082 INFO L226 Difference]: Without dead ends: 19
[2023-11-19 07:38:42,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-19 07:38:42,085 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 0 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-19 07:38:42,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 55 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-19 07:38:42,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states.
[2023-11-19 07:38:42,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19.
[2023-11-19 07:38:42,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 15 states have (on average 1.4) internal successors, (21), 16 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2023-11-19 07:38:42,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 24 transitions.
[2023-11-19 07:38:42,092 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 24 transitions. Word has length 10
[2023-11-19 07:38:42,092 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:38:42,092 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 24 transitions.
[2023-11-19 07:38:42,092 INFO L496 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)
[2023-11-19 07:38:42,092 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions.
[2023-11-19 07:38:42,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2023-11-19 07:38:42,093 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:38:42,093 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:38:42,116 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1560823-1a6b-493b-bbe2-b25cf24565d4/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2023-11-19 07:38:42,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1560823-1a6b-493b-bbe2-b25cf24565d4/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1
[2023-11-19 07:38:42,315 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-19 07:38:42,316 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:38:42,316 INFO L85 PathProgramCache]: Analyzing trace with hash 549278495, now seen corresponding path program 1 times
[2023-11-19 07:38:42,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:38:42,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746653283]
[2023-11-19 07:38:42,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:38:42,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:38:42,337 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-11-19 07:38:42,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [929566055]
[2023-11-19 07:38:42,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:38:42,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:38:42,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1560823-1a6b-493b-bbe2-b25cf24565d4/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:38:42,339 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1560823-1a6b-493b-bbe2-b25cf24565d4/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-19 07:38:42,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1560823-1a6b-493b-bbe2-b25cf24565d4/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2023-11-19 07:38:42,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:38:42,417 INFO L262 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 7 conjunts are in the unsatisfiable core
[2023-11-19 07:38:42,420 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:38:42,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:38:42,543 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 07:38:42,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:38:42,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746653283]
[2023-11-19 07:38:42,544 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-11-19 07:38:42,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [929566055]
[2023-11-19 07:38:42,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [929566055] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:38:42,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:38:42,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-19 07:38:42,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315035773]
[2023-11-19 07:38:42,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:38:42,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-19 07:38:42,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:38:42,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-19 07:38:42,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-11-19 07:38:42,548 INFO L87 Difference]: Start difference. First operand 19 states and 24 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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)
[2023-11-19 07:38:42,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:38:42,617 INFO L93 Difference]: Finished difference Result 31 states and 39 transitions.
[2023-11-19 07:38:42,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2023-11-19 07:38:42,618 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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 11
[2023-11-19 07:38:42,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:38:42,619 INFO L225 Difference]: With dead ends: 31
[2023-11-19 07:38:42,619 INFO L226 Difference]: Without dead ends: 28
[2023-11-19 07:38:42,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2023-11-19 07:38:42,622 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 10 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-19 07:38:42,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 51 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-19 07:38:42,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states.
[2023-11-19 07:38:42,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28.
[2023-11-19 07:38:42,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 23 states have internal predecessors, (29), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2023-11-19 07:38:42,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 34 transitions.
[2023-11-19 07:38:42,632 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 34 transitions. Word has length 11
[2023-11-19 07:38:42,632 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:38:42,632 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 34 transitions.
[2023-11-19 07:38:42,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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)
[2023-11-19 07:38:42,633 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions.
[2023-11-19 07:38:42,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2023-11-19 07:38:42,634 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:38:42,634 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:38:42,664 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1560823-1a6b-493b-bbe2-b25cf24565d4/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2023-11-19 07:38:42,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1560823-1a6b-493b-bbe2-b25cf24565d4/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:38:42,851 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-19 07:38:42,851 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:38:42,852 INFO L85 PathProgramCache]: Analyzing trace with hash 2116548854, now seen corresponding path program 1 times
[2023-11-19 07:38:42,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:38:42,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93553693]
[2023-11-19 07:38:42,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:38:42,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:38:42,871 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-11-19 07:38:42,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [939178128]
[2023-11-19 07:38:42,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:38:42,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:38:42,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1560823-1a6b-493b-bbe2-b25cf24565d4/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:38:42,876 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1560823-1a6b-493b-bbe2-b25cf24565d4/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-19 07:38:42,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1560823-1a6b-493b-bbe2-b25cf24565d4/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2023-11-19 07:38:42,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:38:42,962 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 5 conjunts are in the unsatisfiable core
[2023-11-19 07:38:42,964 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:38:43,021 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2023-11-19 07:38:43,022 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 07:38:43,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:38:43,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93553693]
[2023-11-19 07:38:43,023 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-11-19 07:38:43,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [939178128]
[2023-11-19 07:38:43,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [939178128] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:38:43,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:38:43,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-19 07:38:43,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257313465]
[2023-11-19 07:38:43,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:38:43,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-19 07:38:43,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:38:43,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-19 07:38:43,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-11-19 07:38:43,029 INFO L87 Difference]: Start difference. First operand 28 states and 34 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2023-11-19 07:38:43,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:38:43,065 INFO L93 Difference]: Finished difference Result 30 states and 36 transitions.
[2023-11-19 07:38:43,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2023-11-19 07:38:43,065 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20
[2023-11-19 07:38:43,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:38:43,065 INFO L225 Difference]: With dead ends: 30
[2023-11-19 07:38:43,066 INFO L226 Difference]: Without dead ends: 0
[2023-11-19 07:38:43,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2023-11-19 07:38:43,068 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 4 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-19 07:38:43,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 12 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-19 07:38:43,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2023-11-19 07:38:43,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2023-11-19 07:38:43,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:38:43,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2023-11-19 07:38:43,078 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20
[2023-11-19 07:38:43,078 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:38:43,078 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2023-11-19 07:38:43,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2023-11-19 07:38:43,079 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2023-11-19 07:38:43,079 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2023-11-19 07:38:43,082 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2023-11-19 07:38:43,116 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1560823-1a6b-493b-bbe2-b25cf24565d4/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2023-11-19 07:38:43,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1560823-1a6b-493b-bbe2-b25cf24565d4/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:38:43,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2023-11-19 07:38:43,347 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2023-11-19 07:38:43,347 INFO L899 garLoopResultBuilder]: For program point L48(line 48) no Hoare annotation was computed.
[2023-11-19 07:38:43,348 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed.
[2023-11-19 07:38:43,348 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 26 50) no Hoare annotation was computed.
[2023-11-19 07:38:43,348 INFO L899 garLoopResultBuilder]: For program point L38(lines 38 47) no Hoare annotation was computed.
[2023-11-19 07:38:43,348 INFO L895 garLoopResultBuilder]: At program point L38-2(lines 38 47) the Hoare annotation is: (and (= |ULTIMATE.start_main_~q~0#1| 0) (= |ULTIMATE.start_main_~A~0#1| |ULTIMATE.start_main_~r~0#1|))
[2023-11-19 07:38:43,349 INFO L899 garLoopResultBuilder]: For program point L34-1(lines 34 37) no Hoare annotation was computed.
[2023-11-19 07:38:43,349 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed.
[2023-11-19 07:38:43,349 INFO L895 garLoopResultBuilder]: At program point L34-3(lines 34 37) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse1 (= |ULTIMATE.start_main_~A~0#1| |ULTIMATE.start_main_~r~0#1|))) (or (and (<= 1 ~counter~0) .cse0 .cse1) (and .cse0 (= ~counter~0 0) .cse1)))
[2023-11-19 07:38:43,349 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2023-11-19 07:38:43,349 INFO L899 garLoopResultBuilder]: For program point L43(lines 43 46) no Hoare annotation was computed.
[2023-11-19 07:38:43,350 INFO L895 garLoopResultBuilder]: At program point L43-2(lines 38 47) the Hoare annotation is: (and (<= 1 ~counter~0) (= |ULTIMATE.start_main_~q~0#1| 0) (= |ULTIMATE.start_main_~A~0#1| |ULTIMATE.start_main_~r~0#1|))
[2023-11-19 07:38:43,350 INFO L895 garLoopResultBuilder]: At program point L39(line 39) the Hoare annotation is: false
[2023-11-19 07:38:43,350 INFO L899 garLoopResultBuilder]: For program point L39-1(lines 38 47) no Hoare annotation was computed.
[2023-11-19 07:38:43,350 INFO L899 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed.
[2023-11-19 07:38:43,350 INFO L899 garLoopResultBuilder]: For program point L19-2(lines 18 24) no Hoare annotation was computed.
[2023-11-19 07:38:43,350 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 18 24) no Hoare annotation was computed.
[2023-11-19 07:38:43,351 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 18 24) the Hoare annotation is: true
[2023-11-19 07:38:43,351 INFO L899 garLoopResultBuilder]: For program point L20(lines 20 21) no Hoare annotation was computed.
[2023-11-19 07:38:43,351 INFO L899 garLoopResultBuilder]: For program point L19(lines 19 22) no Hoare annotation was computed.
[2023-11-19 07:38:43,351 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 21) no Hoare annotation was computed.
[2023-11-19 07:38:43,356 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2023-11-19 07:38:43,358 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2023-11-19 07:38:43,374 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:38:43 BoogieIcfgContainer
[2023-11-19 07:38:43,374 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-11-19 07:38:43,375 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2023-11-19 07:38:43,376 INFO L270 PluginConnector]: Initializing Witness Printer...
[2023-11-19 07:38:43,376 INFO L274 PluginConnector]: Witness Printer initialized
[2023-11-19 07:38:43,376 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:38:41" (3/4) ...
[2023-11-19 07:38:43,379 INFO L137 WitnessPrinter]: Generating witness for correct program
[2023-11-19 07:38:43,386 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert
[2023-11-19 07:38:43,392 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges
[2023-11-19 07:38:43,393 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges
[2023-11-19 07:38:43,398 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges
[2023-11-19 07:38:43,398 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2023-11-19 07:38:43,544 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1560823-1a6b-493b-bbe2-b25cf24565d4/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml
[2023-11-19 07:38:43,545 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1560823-1a6b-493b-bbe2-b25cf24565d4/bin/uautomizer-verify-uCwYo4JHxu/witness.yml
[2023-11-19 07:38:43,545 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2023-11-19 07:38:43,546 INFO L158 Benchmark]: Toolchain (without parser) took 3411.53ms. Allocated memory is still 153.1MB. Free memory was 108.2MB in the beginning and 124.4MB in the end (delta: -16.2MB). Peak memory consumption was 44.5MB. Max. memory is 16.1GB.
[2023-11-19 07:38:43,546 INFO L158 Benchmark]: CDTParser took 0.55ms. Allocated memory is still 113.2MB. Free memory is still 61.5MB. There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 07:38:43,547 INFO L158 Benchmark]: CACSL2BoogieTranslator took 332.87ms. Allocated memory is still 153.1MB. Free memory was 107.9MB in the beginning and 97.0MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2023-11-19 07:38:43,547 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.52ms. Allocated memory is still 153.1MB. Free memory was 97.0MB in the beginning and 95.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-19 07:38:43,548 INFO L158 Benchmark]: Boogie Preprocessor took 26.35ms. Allocated memory is still 153.1MB. Free memory was 95.7MB in the beginning and 94.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 07:38:43,548 INFO L158 Benchmark]: RCFGBuilder took 474.19ms. Allocated memory is still 153.1MB. Free memory was 94.6MB in the beginning and 84.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2023-11-19 07:38:43,549 INFO L158 Benchmark]: TraceAbstraction took 2357.25ms. Allocated memory is still 153.1MB. Free memory was 83.5MB in the beginning and 71.3MB in the end (delta: 12.1MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB.
[2023-11-19 07:38:43,549 INFO L158 Benchmark]: Witness Printer took 169.78ms. Allocated memory is still 153.1MB. Free memory was 71.3MB in the beginning and 124.4MB in the end (delta: -53.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB.
[2023-11-19 07:38:43,551 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.55ms. Allocated memory is still 113.2MB. Free memory is still 61.5MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 332.87ms. Allocated memory is still 153.1MB. Free memory was 107.9MB in the beginning and 97.0MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 39.52ms. Allocated memory is still 153.1MB. Free memory was 97.0MB in the beginning and 95.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 26.35ms. Allocated memory is still 153.1MB. Free memory was 95.7MB in the beginning and 94.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 474.19ms. Allocated memory is still 153.1MB. Free memory was 94.6MB in the beginning and 84.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
* TraceAbstraction took 2357.25ms. Allocated memory is still 153.1MB. Free memory was 83.5MB in the beginning and 71.3MB in the end (delta: 12.1MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB.
* Witness Printer took 169.78ms. Allocated memory is still 153.1MB. Free memory was 71.3MB in the beginning and 124.4MB in the end (delta: -53.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- PositiveResult [Line: 21]: a call to reach_error is unreachable
For all program executions holds that a call to reach_error is unreachable at this location
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 2 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.3s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14 mSDsluCounter, 144 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 78 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 47 IncrementalHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 66 mSDtfsCounter, 47 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=3, InterpolantAutomatonStates: 16, 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 12 PreInvPairs, 15 NumberOfFragments, 40 HoareAnnotationTreeSize, 12 FomulaSimplifications, 3 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 6 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 45 ConstructedInterpolants, 0 QuantifiedInterpolants, 103 SizeOfPredicates, 2 NumberOfNonLiveVariables, 202 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 4/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
- AllSpecificationsHoldResult: All specifications hold
1 specifications checked. All of them hold
- InvariantResult [Line: 38]: Loop Invariant
Derived loop invariant: (((1 <= counter) && (q == 0)) && (A == r))
- InvariantResult [Line: 34]: Loop Invariant
Derived loop invariant: ((((1 <= counter) && (q == 0)) && (A == r)) || (((q == 0) && (counter == 0)) && (A == r)))
RESULT: Ultimate proved your program to be correct!
[2023-11-19 07:38:43,584 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1560823-1a6b-493b-bbe2-b25cf24565d4/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
Result:
TRUE