./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-18.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_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/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_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-18.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/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_7276b022-f718-4a3e-847f-fac6e090cd6f/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 6a09075700c0165e7f87ec4195e4b424ce35f231e25baba100aa11fb885230d3
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-9bd2c7f
[2023-11-19 07:37:35,348 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-11-19 07:37:35,420 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf
[2023-11-19 07:37:35,426 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-11-19 07:37:35,427 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-19 07:37:35,455 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-19 07:37:35,456 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-19 07:37:35,456 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-19 07:37:35,457 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-19 07:37:35,458 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-19 07:37:35,459 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-19 07:37:35,460 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-11-19 07:37:35,460 INFO L153 SettingsManager]: * Use SBE=true
[2023-11-19 07:37:35,461 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-19 07:37:35,462 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2023-11-19 07:37:35,462 INFO L153 SettingsManager]: * sizeof long=4
[2023-11-19 07:37:35,463 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2023-11-19 07:37:35,464 INFO L153 SettingsManager]: * sizeof POINTER=4
[2023-11-19 07:37:35,464 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-11-19 07:37:35,465 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2023-11-19 07:37:35,466 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-19 07:37:35,466 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2023-11-19 07:37:35,467 INFO L153 SettingsManager]: * sizeof long double=12
[2023-11-19 07:37:35,468 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2023-11-19 07:37:35,468 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-11-19 07:37:35,469 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-19 07:37:35,469 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-11-19 07:37:35,470 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-11-19 07:37:35,470 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:37:35,471 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-19 07:37:35,472 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-11-19 07:37:35,472 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2023-11-19 07:37:35,473 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2023-11-19 07:37:35,473 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-19 07:37:35,474 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-19 07:37:35,474 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-19 07:37:35,474 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-11-19 07:37:35,475 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-19 07:37:35,475 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-11-19 07:37:35,475 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_7276b022-f718-4a3e-847f-fac6e090cd6f/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a09075700c0165e7f87ec4195e4b424ce35f231e25baba100aa11fb885230d3
[2023-11-19 07:37:35,799 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-19 07:37:35,835 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-19 07:37:35,838 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-19 07:37:35,840 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-11-19 07:37:35,840 INFO L274 PluginConnector]: CDTParser initialized
[2023-11-19 07:37:35,842 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-18.i
[2023-11-19 07:37:39,030 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-11-19 07:37:39,315 INFO L384 CDTParser]: Found 1 translation units.
[2023-11-19 07:37:39,317 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-18.i
[2023-11-19 07:37:39,329 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/data/b290c2d25/3a58c9663d1142d7ae153b0a19ce3c19/FLAG35136f4cd
[2023-11-19 07:37:39,347 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/data/b290c2d25/3a58c9663d1142d7ae153b0a19ce3c19
[2023-11-19 07:37:39,355 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-19 07:37:39,357 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-19 07:37:39,359 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-19 07:37:39,359 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-19 07:37:39,364 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-19 07:37:39,365 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:37:39" (1/1) ...
[2023-11-19 07:37:39,366 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@150e615b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:39, skipping insertion in model container
[2023-11-19 07:37:39,367 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:37:39" (1/1) ...
[2023-11-19 07:37:39,398 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-19 07:37:39,545 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_7276b022-f718-4a3e-847f-fac6e090cd6f/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-18.i[916,929]
[2023-11-19 07:37:39,588 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:37:39,603 INFO L202 MainTranslator]: Completed pre-run
[2023-11-19 07:37:39,616 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_7276b022-f718-4a3e-847f-fac6e090cd6f/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-18.i[916,929]
[2023-11-19 07:37:39,644 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:37:39,670 INFO L206 MainTranslator]: Completed translation
[2023-11-19 07:37:39,670 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:39 WrapperNode
[2023-11-19 07:37:39,670 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-19 07:37:39,672 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-19 07:37:39,672 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-19 07:37:39,672 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-19 07:37:39,680 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:39" (1/1) ...
[2023-11-19 07:37:39,691 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:39" (1/1) ...
[2023-11-19 07:37:39,743 INFO L138 Inliner]: procedures = 26, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 144
[2023-11-19 07:37:39,743 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-19 07:37:39,744 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-19 07:37:39,744 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-19 07:37:39,745 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-11-19 07:37:39,754 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:39" (1/1) ...
[2023-11-19 07:37:39,755 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:39" (1/1) ...
[2023-11-19 07:37:39,758 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:39" (1/1) ...
[2023-11-19 07:37:39,758 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:39" (1/1) ...
[2023-11-19 07:37:39,769 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:39" (1/1) ...
[2023-11-19 07:37:39,773 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:39" (1/1) ...
[2023-11-19 07:37:39,776 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:39" (1/1) ...
[2023-11-19 07:37:39,778 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:39" (1/1) ...
[2023-11-19 07:37:39,782 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-19 07:37:39,783 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-19 07:37:39,783 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-11-19 07:37:39,784 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-11-19 07:37:39,784 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:39" (1/1) ...
[2023-11-19 07:37:39,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:37:39,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:37:39,835 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-11-19 07:37:39,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-11-19 07:37:39,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-19 07:37:39,881 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-11-19 07:37:39,881 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-11-19 07:37:39,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2023-11-19 07:37:39,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-19 07:37:39,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-19 07:37:39,970 INFO L236 CfgBuilder]: Building ICFG
[2023-11-19 07:37:39,972 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-19 07:37:40,375 INFO L277 CfgBuilder]: Performing block encoding
[2023-11-19 07:37:40,390 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-19 07:37:40,390 INFO L302 CfgBuilder]: Removed 1 assume(true) statements.
[2023-11-19 07:37:40,394 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:37:40 BoogieIcfgContainer
[2023-11-19 07:37:40,395 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-19 07:37:40,398 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-19 07:37:40,398 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2023-11-19 07:37:40,405 INFO L274 PluginConnector]: TraceAbstraction initialized
[2023-11-19 07:37:40,406 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:37:39" (1/3) ...
[2023-11-19 07:37:40,406 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14d0abfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:37:40, skipping insertion in model container
[2023-11-19 07:37:40,407 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:39" (2/3) ...
[2023-11-19 07:37:40,407 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14d0abfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:37:40, skipping insertion in model container
[2023-11-19 07:37:40,408 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:37:40" (3/3) ...
[2023-11-19 07:37:40,409 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-18.i
[2023-11-19 07:37:40,430 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-19 07:37:40,431 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-11-19 07:37:40,505 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-19 07:37:40,514 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;@602ac550, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-11-19 07:37:40,515 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-11-19 07:37:40,522 INFO L276 IsEmpty]: Start isEmpty. Operand has 62 states, 45 states have (on average 1.488888888888889) internal successors, (67), 46 states have internal predecessors, (67), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14)
[2023-11-19 07:37:40,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98
[2023-11-19 07:37:40,537 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:37:40,539 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:37:40,540 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-19 07:37:40,565 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:37:40,566 INFO L85 PathProgramCache]: Analyzing trace with hash -516591756, now seen corresponding path program 1 times
[2023-11-19 07:37:40,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:37:40,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575341245]
[2023-11-19 07:37:40,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:37:40,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:37:40,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:37:40,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:37:40,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575341245]
[2023-11-19 07:37:40,756 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic
[2023-11-19 07:37:40,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [157828889]
[2023-11-19 07:37:40,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:37:40,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:37:40,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:37:40,761 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-19 07:37:40,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2023-11-19 07:37:40,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:37:40,980 INFO L262 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-11-19 07:37:40,989 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:37:41,057 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked.
[2023-11-19 07:37:41,062 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 07:37:41,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [157828889] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:37:41,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:37:41,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-19 07:37:41,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9487968]
[2023-11-19 07:37:41,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:37:41,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-11-19 07:37:41,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:37:41,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-11-19 07:37:41,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-11-19 07:37:41,117 INFO L87 Difference]: Start difference. First operand has 62 states, 45 states have (on average 1.488888888888889) internal successors, (67), 46 states have internal predecessors, (67), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14)
[2023-11-19 07:37:41,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:37:41,160 INFO L93 Difference]: Finished difference Result 117 states and 198 transitions.
[2023-11-19 07:37:41,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2023-11-19 07:37:41,163 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 97
[2023-11-19 07:37:41,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:37:41,173 INFO L225 Difference]: With dead ends: 117
[2023-11-19 07:37:41,173 INFO L226 Difference]: Without dead ends: 58
[2023-11-19 07:37:41,177 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 96 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 07:37:41,181 INFO L413 NwaCegarLoop]: 88 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, 88 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 07:37:41,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-19 07:37:41,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states.
[2023-11-19 07:37:41,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58.
[2023-11-19 07:37:41,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 42 states have (on average 1.4285714285714286) internal successors, (60), 42 states have internal predecessors, (60), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14)
[2023-11-19 07:37:41,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 88 transitions.
[2023-11-19 07:37:41,240 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 88 transitions. Word has length 97
[2023-11-19 07:37:41,241 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:37:41,241 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 88 transitions.
[2023-11-19 07:37:41,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14)
[2023-11-19 07:37:41,242 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 88 transitions.
[2023-11-19 07:37:41,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98
[2023-11-19 07:37:41,251 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:37:41,252 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:37:41,279 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2023-11-19 07:37:41,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0
[2023-11-19 07:37:41,480 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-19 07:37:41,480 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:37:41,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1182127948, now seen corresponding path program 1 times
[2023-11-19 07:37:41,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:37:41,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498300210]
[2023-11-19 07:37:41,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:37:41,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:37:41,571 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-11-19 07:37:41,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1142492242]
[2023-11-19 07:37:41,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:37:41,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:37:41,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:37:41,574 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-19 07:37:41,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2023-11-19 07:37:41,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:37:41,725 INFO L262 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-11-19 07:37:41,730 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:37:41,963 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked.
[2023-11-19 07:37:41,964 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 07:37:41,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:37:41,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498300210]
[2023-11-19 07:37:41,964 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-11-19 07:37:41,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1142492242]
[2023-11-19 07:37:41,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1142492242] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:37:41,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:37:41,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-19 07:37:41,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318582490]
[2023-11-19 07:37:41,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:37:41,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 07:37:41,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:37:41,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 07:37:41,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 07:37:41,969 INFO L87 Difference]: Start difference. First operand 58 states and 88 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14)
[2023-11-19 07:37:42,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:37:42,115 INFO L93 Difference]: Finished difference Result 168 states and 258 transitions.
[2023-11-19 07:37:42,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-19 07:37:42,117 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 97
[2023-11-19 07:37:42,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:37:42,126 INFO L225 Difference]: With dead ends: 168
[2023-11-19 07:37:42,126 INFO L226 Difference]: Without dead ends: 113
[2023-11-19 07:37:42,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 07:37:42,129 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 35 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-11-19 07:37:42,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 139 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-11-19 07:37:42,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states.
[2023-11-19 07:37:42,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 110.
[2023-11-19 07:37:42,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 79 states have (on average 1.3924050632911393) internal successors, (110), 79 states have internal predecessors, (110), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28)
[2023-11-19 07:37:42,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 166 transitions.
[2023-11-19 07:37:42,178 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 166 transitions. Word has length 97
[2023-11-19 07:37:42,182 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:37:42,183 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 166 transitions.
[2023-11-19 07:37:42,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14)
[2023-11-19 07:37:42,183 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 166 transitions.
[2023-11-19 07:37:42,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99
[2023-11-19 07:37:42,190 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:37:42,191 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:37:42,218 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2023-11-19 07:37:42,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:37:42,413 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-19 07:37:42,414 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:37:42,414 INFO L85 PathProgramCache]: Analyzing trace with hash -2057862063, now seen corresponding path program 1 times
[2023-11-19 07:37:42,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:37:42,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272794716]
[2023-11-19 07:37:42,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:37:42,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:37:42,458 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-11-19 07:37:42,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [586210076]
[2023-11-19 07:37:42,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:37:42,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:37:42,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:37:42,460 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-19 07:37:42,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2023-11-19 07:37:42,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:37:42,654 INFO L262 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-11-19 07:37:42,659 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:37:43,241 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 13 proven. 39 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked.
[2023-11-19 07:37:43,248 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-11-19 07:37:43,685 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked.
[2023-11-19 07:37:43,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:37:43,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272794716]
[2023-11-19 07:37:43,686 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-11-19 07:37:43,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [586210076]
[2023-11-19 07:37:43,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [586210076] provided 0 perfect and 2 imperfect interpolant sequences
[2023-11-19 07:37:43,687 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-11-19 07:37:43,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16
[2023-11-19 07:37:43,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17847634]
[2023-11-19 07:37:43,688 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-11-19 07:37:43,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2023-11-19 07:37:43,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:37:43,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2023-11-19 07:37:43,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240
[2023-11-19 07:37:43,694 INFO L87 Difference]: Start difference. First operand 110 states and 166 transitions. Second operand has 16 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 16 states have internal predecessors, (56), 4 states have call successors, (28), 3 states have call predecessors, (28), 4 states have return successors, (28), 2 states have call predecessors, (28), 4 states have call successors, (28)
[2023-11-19 07:37:44,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:37:44,669 INFO L93 Difference]: Finished difference Result 360 states and 528 transitions.
[2023-11-19 07:37:44,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states.
[2023-11-19 07:37:44,671 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 16 states have internal predecessors, (56), 4 states have call successors, (28), 3 states have call predecessors, (28), 4 states have return successors, (28), 2 states have call predecessors, (28), 4 states have call successors, (28) Word has length 98
[2023-11-19 07:37:44,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:37:44,677 INFO L225 Difference]: With dead ends: 360
[2023-11-19 07:37:44,677 INFO L226 Difference]: Without dead ends: 253
[2023-11-19 07:37:44,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=309, Invalid=881, Unknown=0, NotChecked=0, Total=1190
[2023-11-19 07:37:44,686 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 253 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2023-11-19 07:37:44,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 329 Invalid, 600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2023-11-19 07:37:44,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states.
[2023-11-19 07:37:44,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 237.
[2023-11-19 07:37:44,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 172 states have (on average 1.244186046511628) internal successors, (214), 172 states have internal predecessors, (214), 56 states have call successors, (56), 8 states have call predecessors, (56), 8 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56)
[2023-11-19 07:37:44,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 326 transitions.
[2023-11-19 07:37:44,734 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 326 transitions. Word has length 98
[2023-11-19 07:37:44,735 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:37:44,735 INFO L495 AbstractCegarLoop]: Abstraction has 237 states and 326 transitions.
[2023-11-19 07:37:44,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 16 states have internal predecessors, (56), 4 states have call successors, (28), 3 states have call predecessors, (28), 4 states have return successors, (28), 2 states have call predecessors, (28), 4 states have call successors, (28)
[2023-11-19 07:37:44,735 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 326 transitions.
[2023-11-19 07:37:44,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100
[2023-11-19 07:37:44,737 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:37:44,737 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:37:44,749 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2023-11-19 07:37:44,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:37:44,949 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-19 07:37:44,950 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:37:44,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1688012905, now seen corresponding path program 1 times
[2023-11-19 07:37:44,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:37:44,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836150864]
[2023-11-19 07:37:44,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:37:44,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:37:45,018 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-11-19 07:37:45,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1775214977]
[2023-11-19 07:37:45,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:37:45,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:37:45,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:37:45,021 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-19 07:37:45,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2023-11-19 07:37:45,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:37:45,185 INFO L262 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 26 conjunts are in the unsatisfiable core
[2023-11-19 07:37:45,192 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:37:47,997 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 13 proven. 39 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked.
[2023-11-19 07:37:47,997 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-11-19 07:37:52,008 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked.
[2023-11-19 07:37:52,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:37:52,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836150864]
[2023-11-19 07:37:52,009 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-11-19 07:37:52,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1775214977]
[2023-11-19 07:37:52,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1775214977] provided 1 perfect and 1 imperfect interpolant sequences
[2023-11-19 07:37:52,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-11-19 07:37:52,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [14] total 22
[2023-11-19 07:37:52,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442527256]
[2023-11-19 07:37:52,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:37:52,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2023-11-19 07:37:52,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:37:52,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2023-11-19 07:37:52,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=371, Unknown=0, NotChecked=0, Total=462
[2023-11-19 07:37:52,013 INFO L87 Difference]: Start difference. First operand 237 states and 326 transitions. Second operand has 10 states, 10 states have (on average 3.2) internal successors, (32), 10 states have internal predecessors, (32), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14)
[2023-11-19 07:37:55,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:37:55,010 INFO L93 Difference]: Finished difference Result 494 states and 674 transitions.
[2023-11-19 07:37:55,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states.
[2023-11-19 07:37:55,011 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 10 states have internal predecessors, (32), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 99
[2023-11-19 07:37:55,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:37:55,015 INFO L225 Difference]: With dead ends: 494
[2023-11-19 07:37:55,015 INFO L226 Difference]: Without dead ends: 374
[2023-11-19 07:37:55,016 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=190, Invalid=866, Unknown=0, NotChecked=0, Total=1056
[2023-11-19 07:37:55,018 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 229 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time
[2023-11-19 07:37:55,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 339 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time]
[2023-11-19 07:37:55,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states.
[2023-11-19 07:37:55,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 267.
[2023-11-19 07:37:55,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 202 states have (on average 1.2772277227722773) internal successors, (258), 202 states have internal predecessors, (258), 56 states have call successors, (56), 8 states have call predecessors, (56), 8 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56)
[2023-11-19 07:37:55,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 370 transitions.
[2023-11-19 07:37:55,068 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 370 transitions. Word has length 99
[2023-11-19 07:37:55,069 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:37:55,069 INFO L495 AbstractCegarLoop]: Abstraction has 267 states and 370 transitions.
[2023-11-19 07:37:55,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 10 states have internal predecessors, (32), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14)
[2023-11-19 07:37:55,069 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 370 transitions.
[2023-11-19 07:37:55,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101
[2023-11-19 07:37:55,071 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:37:55,072 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:37:55,102 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2023-11-19 07:37:55,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:37:55,294 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-19 07:37:55,294 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:37:55,294 INFO L85 PathProgramCache]: Analyzing trace with hash -376939016, now seen corresponding path program 1 times
[2023-11-19 07:37:55,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:37:55,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65321888]
[2023-11-19 07:37:55,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:37:55,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:37:55,342 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-11-19 07:37:55,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [535097200]
[2023-11-19 07:37:55,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:37:55,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:37:55,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:37:55,365 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-19 07:37:55,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2023-11-19 07:37:55,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:37:55,463 INFO L262 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-11-19 07:37:55,467 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:37:55,491 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked.
[2023-11-19 07:37:55,491 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 07:37:55,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:37:55,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65321888]
[2023-11-19 07:37:55,495 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-11-19 07:37:55,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [535097200]
[2023-11-19 07:37:55,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [535097200] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:37:55,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:37:55,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-11-19 07:37:55,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875985715]
[2023-11-19 07:37:55,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:37:55,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 07:37:55,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:37:55,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 07:37:55,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 07:37:55,501 INFO L87 Difference]: Start difference. First operand 267 states and 370 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14)
[2023-11-19 07:37:55,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:37:55,602 INFO L93 Difference]: Finished difference Result 512 states and 719 transitions.
[2023-11-19 07:37:55,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-19 07:37:55,603 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 100
[2023-11-19 07:37:55,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:37:55,608 INFO L225 Difference]: With dead ends: 512
[2023-11-19 07:37:55,608 INFO L226 Difference]: Without dead ends: 362
[2023-11-19 07:37:55,609 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 07:37:55,610 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 71 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-11-19 07:37:55,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 128 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-11-19 07:37:55,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states.
[2023-11-19 07:37:55,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 236.
[2023-11-19 07:37:55,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 171 states have (on average 1.2690058479532165) internal successors, (217), 171 states have internal predecessors, (217), 56 states have call successors, (56), 8 states have call predecessors, (56), 8 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56)
[2023-11-19 07:37:55,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 329 transitions.
[2023-11-19 07:37:55,667 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 329 transitions. Word has length 100
[2023-11-19 07:37:55,668 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:37:55,668 INFO L495 AbstractCegarLoop]: Abstraction has 236 states and 329 transitions.
[2023-11-19 07:37:55,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14)
[2023-11-19 07:37:55,669 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 329 transitions.
[2023-11-19 07:37:55,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101
[2023-11-19 07:37:55,670 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:37:55,671 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:37:55,696 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2023-11-19 07:37:55,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:37:55,891 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-19 07:37:55,892 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:37:55,892 INFO L85 PathProgramCache]: Analyzing trace with hash 482730387, now seen corresponding path program 1 times
[2023-11-19 07:37:55,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:37:55,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822366511]
[2023-11-19 07:37:55,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:37:55,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:37:55,940 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-11-19 07:37:55,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [639495720]
[2023-11-19 07:37:55,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:37:55,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:37:55,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:37:55,950 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-19 07:37:55,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2023-11-19 07:37:56,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:37:56,106 INFO L262 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 25 conjunts are in the unsatisfiable core
[2023-11-19 07:37:56,110 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:37:57,953 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 128 proven. 42 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked.
[2023-11-19 07:37:57,953 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-11-19 07:38:01,377 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked.
[2023-11-19 07:38:01,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:38:01,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822366511]
[2023-11-19 07:38:01,377 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-11-19 07:38:01,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [639495720]
[2023-11-19 07:38:01,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [639495720] provided 0 perfect and 2 imperfect interpolant sequences
[2023-11-19 07:38:01,378 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-11-19 07:38:01,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12] total 24
[2023-11-19 07:38:01,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842348274]
[2023-11-19 07:38:01,378 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-11-19 07:38:01,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states
[2023-11-19 07:38:01,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:38:01,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants.
[2023-11-19 07:38:01,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=425, Unknown=0, NotChecked=0, Total=552
[2023-11-19 07:38:01,380 INFO L87 Difference]: Start difference. First operand 236 states and 329 transitions. Second operand has 24 states, 24 states have (on average 3.0416666666666665) internal successors, (73), 24 states have internal predecessors, (73), 5 states have call successors, (28), 4 states have call predecessors, (28), 6 states have return successors, (28), 3 states have call predecessors, (28), 5 states have call successors, (28)
[2023-11-19 07:38:10,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:38:10,417 INFO L93 Difference]: Finished difference Result 703 states and 935 transitions.
[2023-11-19 07:38:10,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states.
[2023-11-19 07:38:10,422 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.0416666666666665) internal successors, (73), 24 states have internal predecessors, (73), 5 states have call successors, (28), 4 states have call predecessors, (28), 6 states have return successors, (28), 3 states have call predecessors, (28), 5 states have call successors, (28) Word has length 100
[2023-11-19 07:38:10,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:38:10,426 INFO L225 Difference]: With dead ends: 703
[2023-11-19 07:38:10,426 INFO L226 Difference]: Without dead ends: 470
[2023-11-19 07:38:10,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1351 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=1031, Invalid=3525, Unknown=0, NotChecked=0, Total=4556
[2023-11-19 07:38:10,430 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 596 mSDsluCounter, 661 mSDsCounter, 0 mSdLazyCounter, 1550 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 596 SdHoareTripleChecker+Valid, 740 SdHoareTripleChecker+Invalid, 1608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time
[2023-11-19 07:38:10,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [596 Valid, 740 Invalid, 1608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1550 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time]
[2023-11-19 07:38:10,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states.
[2023-11-19 07:38:10,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 267.
[2023-11-19 07:38:10,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 200 states have (on average 1.26) internal successors, (252), 200 states have internal predecessors, (252), 56 states have call successors, (56), 10 states have call predecessors, (56), 10 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56)
[2023-11-19 07:38:10,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 364 transitions.
[2023-11-19 07:38:10,499 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 364 transitions. Word has length 100
[2023-11-19 07:38:10,499 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:38:10,499 INFO L495 AbstractCegarLoop]: Abstraction has 267 states and 364 transitions.
[2023-11-19 07:38:10,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 3.0416666666666665) internal successors, (73), 24 states have internal predecessors, (73), 5 states have call successors, (28), 4 states have call predecessors, (28), 6 states have return successors, (28), 3 states have call predecessors, (28), 5 states have call successors, (28)
[2023-11-19 07:38:10,500 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 364 transitions.
[2023-11-19 07:38:10,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102
[2023-11-19 07:38:10,501 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:38:10,502 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:38:10,509 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0
[2023-11-19 07:38:10,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5
[2023-11-19 07:38:10,709 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-19 07:38:10,709 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:38:10,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1002438526, now seen corresponding path program 1 times
[2023-11-19 07:38:10,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:38:10,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500908386]
[2023-11-19 07:38:10,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:38:10,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:38:10,735 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-11-19 07:38:10,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1739952100]
[2023-11-19 07:38:10,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:38:10,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:38:10,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:38:10,737 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-19 07:38:10,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2023-11-19 07:38:10,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:38:10,843 INFO L262 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 7 conjunts are in the unsatisfiable core
[2023-11-19 07:38:10,846 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:38:10,981 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 13 proven. 39 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked.
[2023-11-19 07:38:10,981 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-11-19 07:38:11,109 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked.
[2023-11-19 07:38:11,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:38:11,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500908386]
[2023-11-19 07:38:11,110 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-11-19 07:38:11,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1739952100]
[2023-11-19 07:38:11,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1739952100] provided 0 perfect and 2 imperfect interpolant sequences
[2023-11-19 07:38:11,110 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-11-19 07:38:11,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9
[2023-11-19 07:38:11,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412389051]
[2023-11-19 07:38:11,111 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-11-19 07:38:11,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2023-11-19 07:38:11,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:38:11,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2023-11-19 07:38:11,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72
[2023-11-19 07:38:11,113 INFO L87 Difference]: Start difference. First operand 267 states and 364 transitions. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 3 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (28), 2 states have call predecessors, (28), 3 states have call successors, (28)
[2023-11-19 07:38:11,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:38:11,559 INFO L93 Difference]: Finished difference Result 641 states and 869 transitions.
[2023-11-19 07:38:11,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states.
[2023-11-19 07:38:11,566 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 3 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (28), 2 states have call predecessors, (28), 3 states have call successors, (28) Word has length 101
[2023-11-19 07:38:11,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:38:11,573 INFO L225 Difference]: With dead ends: 641
[2023-11-19 07:38:11,574 INFO L226 Difference]: Without dead ends: 367
[2023-11-19 07:38:11,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=115, Invalid=227, Unknown=0, NotChecked=0, Total=342
[2023-11-19 07:38:11,576 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 156 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2023-11-19 07:38:11,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 209 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2023-11-19 07:38:11,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states.
[2023-11-19 07:38:11,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 332.
[2023-11-19 07:38:11,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 232 states have (on average 1.1594827586206897) internal successors, (269), 232 states have internal predecessors, (269), 84 states have call successors, (84), 15 states have call predecessors, (84), 15 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84)
[2023-11-19 07:38:11,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 437 transitions.
[2023-11-19 07:38:11,677 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 437 transitions. Word has length 101
[2023-11-19 07:38:11,677 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:38:11,678 INFO L495 AbstractCegarLoop]: Abstraction has 332 states and 437 transitions.
[2023-11-19 07:38:11,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 3 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (28), 2 states have call predecessors, (28), 3 states have call successors, (28)
[2023-11-19 07:38:11,678 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 437 transitions.
[2023-11-19 07:38:11,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102
[2023-11-19 07:38:11,679 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:38:11,679 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:38:11,698 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0
[2023-11-19 07:38:11,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:38:11,889 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-19 07:38:11,890 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:38:11,890 INFO L85 PathProgramCache]: Analyzing trace with hash -1235255068, now seen corresponding path program 1 times
[2023-11-19 07:38:11,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:38:11,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556750104]
[2023-11-19 07:38:11,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:38:11,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:38:11,911 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-11-19 07:38:11,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [295008865]
[2023-11-19 07:38:11,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:38:11,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:38:11,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:38:11,912 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-19 07:38:11,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2023-11-19 07:38:12,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:38:12,023 INFO L262 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 14 conjunts are in the unsatisfiable core
[2023-11-19 07:38:12,026 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:38:12,152 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked.
[2023-11-19 07:38:12,152 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 07:38:12,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:38:12,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556750104]
[2023-11-19 07:38:12,153 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-11-19 07:38:12,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [295008865]
[2023-11-19 07:38:12,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [295008865] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:38:12,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:38:12,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2023-11-19 07:38:12,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833067322]
[2023-11-19 07:38:12,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:38:12,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2023-11-19 07:38:12,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:38:12,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2023-11-19 07:38:12,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72
[2023-11-19 07:38:12,156 INFO L87 Difference]: Start difference. First operand 332 states and 437 transitions. Second operand has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14)
[2023-11-19 07:38:12,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:38:12,551 INFO L93 Difference]: Finished difference Result 744 states and 993 transitions.
[2023-11-19 07:38:12,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states.
[2023-11-19 07:38:12,552 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 101
[2023-11-19 07:38:12,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:38:12,556 INFO L225 Difference]: With dead ends: 744
[2023-11-19 07:38:12,556 INFO L226 Difference]: Without dead ends: 415
[2023-11-19 07:38:12,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272
[2023-11-19 07:38:12,558 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 97 mSDsluCounter, 701 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 820 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-11-19 07:38:12,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 820 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-11-19 07:38:12,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states.
[2023-11-19 07:38:12,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 288.
[2023-11-19 07:38:12,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 205 states have (on average 1.1268292682926828) internal successors, (231), 205 states have internal predecessors, (231), 70 states have call successors, (70), 12 states have call predecessors, (70), 12 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70)
[2023-11-19 07:38:12,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 371 transitions.
[2023-11-19 07:38:12,630 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 371 transitions. Word has length 101
[2023-11-19 07:38:12,631 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:38:12,631 INFO L495 AbstractCegarLoop]: Abstraction has 288 states and 371 transitions.
[2023-11-19 07:38:12,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14)
[2023-11-19 07:38:12,631 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 371 transitions.
[2023-11-19 07:38:12,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103
[2023-11-19 07:38:12,632 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:38:12,633 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:38:12,654 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0
[2023-11-19 07:38:12,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:38:12,854 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-19 07:38:12,855 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:38:12,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1609194171, now seen corresponding path program 1 times
[2023-11-19 07:38:12,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:38:12,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737591943]
[2023-11-19 07:38:12,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:38:12,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:38:12,876 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-11-19 07:38:12,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [38140932]
[2023-11-19 07:38:12,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:38:12,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:38:12,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:38:12,881 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-19 07:38:12,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process
[2023-11-19 07:38:12,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 07:38:12,984 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-19 07:38:13,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 07:38:13,088 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-19 07:38:13,089 INFO L360 BasicCegarLoop]: Counterexample is feasible
[2023-11-19 07:38:13,090 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2023-11-19 07:38:13,105 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0
[2023-11-19 07:38:13,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:38:13,300 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:38:13,303 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2023-11-19 07:38:13,382 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated
[2023-11-19 07:38:13,390 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated
[2023-11-19 07:38:13,391 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet13 could not be translated
[2023-11-19 07:38:13,391 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet13 could not be translated
[2023-11-19 07:38:13,391 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short15 could not be translated
[2023-11-19 07:38:13,427 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:38:13 BoogieIcfgContainer
[2023-11-19 07:38:13,427 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-11-19 07:38:13,428 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2023-11-19 07:38:13,428 INFO L270 PluginConnector]: Initializing Witness Printer...
[2023-11-19 07:38:13,428 INFO L274 PluginConnector]: Witness Printer initialized
[2023-11-19 07:38:13,428 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:37:40" (3/4) ...
[2023-11-19 07:38:13,430 INFO L140 WitnessPrinter]: No result that supports witness generation found
[2023-11-19 07:38:13,431 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2023-11-19 07:38:13,432 INFO L158 Benchmark]: Toolchain (without parser) took 34075.16ms. Allocated memory was 203.4MB in the beginning and 429.9MB in the end (delta: 226.5MB). Free memory was 162.9MB in the beginning and 220.9MB in the end (delta: -58.0MB). Peak memory consumption was 169.0MB. Max. memory is 16.1GB.
[2023-11-19 07:38:13,432 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 151.0MB. Free memory is still 94.6MB. There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 07:38:13,432 INFO L158 Benchmark]: CACSL2BoogieTranslator took 312.11ms. Allocated memory is still 203.4MB. Free memory was 162.9MB in the beginning and 150.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
[2023-11-19 07:38:13,433 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.11ms. Allocated memory is still 203.4MB. Free memory was 150.3MB in the beginning and 147.2MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-19 07:38:13,433 INFO L158 Benchmark]: Boogie Preprocessor took 38.15ms. Allocated memory is still 203.4MB. Free memory was 147.2MB in the beginning and 145.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-19 07:38:13,433 INFO L158 Benchmark]: RCFGBuilder took 611.72ms. Allocated memory is still 203.4MB. Free memory was 145.1MB in the beginning and 124.0MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB.
[2023-11-19 07:38:13,434 INFO L158 Benchmark]: TraceAbstraction took 33029.32ms. Allocated memory was 203.4MB in the beginning and 429.9MB in the end (delta: 226.5MB). Free memory was 123.6MB in the beginning and 220.9MB in the end (delta: -97.3MB). Peak memory consumption was 131.3MB. Max. memory is 16.1GB.
[2023-11-19 07:38:13,434 INFO L158 Benchmark]: Witness Printer took 3.72ms. Allocated memory is still 429.9MB. Free memory is still 220.9MB. There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 07:38:13,436 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.32ms. Allocated memory is still 151.0MB. Free memory is still 94.6MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 312.11ms. Allocated memory is still 203.4MB. Free memory was 162.9MB in the beginning and 150.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 72.11ms. Allocated memory is still 203.4MB. Free memory was 150.3MB in the beginning and 147.2MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 38.15ms. Allocated memory is still 203.4MB. Free memory was 147.2MB in the beginning and 145.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 611.72ms. Allocated memory is still 203.4MB. Free memory was 145.1MB in the beginning and 124.0MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB.
* TraceAbstraction took 33029.32ms. Allocated memory was 203.4MB in the beginning and 429.9MB in the end (delta: 226.5MB). Free memory was 123.6MB in the beginning and 220.9MB in the end (delta: -97.3MB). Peak memory consumption was 131.3MB. Max. memory is 16.1GB.
* Witness Printer took 3.72ms. Allocated memory is still 429.9MB. Free memory is still 220.9MB. There was no memory consumed. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator:
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: IdentifierExpression #t~nondet13 could not be translated
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: IdentifierExpression #t~nondet13 could not be translated
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: IdentifierExpression #t~short15 could not be translated
- GenericResult: Unfinished Backtranslation
The program execution was not completely translated back.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable
Unable to prove that a call to reach_error is unreachable
Reason: overapproximation of to_int at line 91, overapproximation of bitwiseOr at line 91, overapproximation of bitwiseAnd at line 46.
Possible FailurePath:
[L21] unsigned char isInitial = 0;
[L22] signed long int var_1_1 = 99;
[L23] signed short int var_1_7 = 18477;
[L24] signed short int var_1_8 = 5;
[L25] signed long int var_1_9 = 5;
[L26] signed long int var_1_10 = 0;
[L27] unsigned char var_1_11 = 16;
[L28] unsigned char var_1_12 = 50;
[L29] unsigned char var_1_13 = 1;
[L30] unsigned long int var_1_14 = 256;
[L31] unsigned char var_1_15 = 0;
[L32] unsigned char last_1_var_1_11 = 16;
[L33] unsigned long int last_1_var_1_14 = 256;
VAL [isInitial=0, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=0, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=99, var_1_7=18477, var_1_8=5, var_1_9=5]
[L95] isInitial = 1
[L96] FCALL initially()
[L97] COND TRUE 1
[L98] CALL updateLastVariables()
[L87] last_1_var_1_11 = var_1_11
[L88] last_1_var_1_14 = var_1_14
VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=0, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=99, var_1_7=18477, var_1_8=5, var_1_9=5]
[L98] RET updateLastVariables()
[L99] CALL updateVariables()
[L64] var_1_7 = __VERIFIER_nondet_short()
[L65] CALL assume_abort_if_not(var_1_7 >= 16383)
VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=0, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=99, var_1_7=16383, var_1_8=5, var_1_9=5]
[L20] COND FALSE !(!cond)
VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=0, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=99, var_1_7=16383, var_1_8=5, var_1_9=5]
[L65] RET assume_abort_if_not(var_1_7 >= 16383)
VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=0, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=99, var_1_7=16383, var_1_8=5, var_1_9=5]
[L66] CALL assume_abort_if_not(var_1_7 <= 32767)
VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=0, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=99, var_1_7=16383, var_1_8=5, var_1_9=5]
[L20] COND FALSE !(!cond)
VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=0, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=99, var_1_7=16383, var_1_8=5, var_1_9=5]
[L66] RET assume_abort_if_not(var_1_7 <= 32767)
VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=0, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=99, var_1_7=16383, var_1_8=5, var_1_9=5]
[L67] var_1_8 = __VERIFIER_nondet_short()
[L68] CALL assume_abort_if_not(var_1_8 >= 0)
VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=0, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=99, var_1_7=16383, var_1_8=256, var_1_9=5]
[L20] COND FALSE !(!cond)
VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=0, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=99, var_1_7=16383, var_1_8=256, var_1_9=5]
[L68] RET assume_abort_if_not(var_1_8 >= 0)
VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=0, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=99, var_1_7=16383, var_1_8=256, var_1_9=5]
[L69] CALL assume_abort_if_not(var_1_8 <= 16383)
VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=0, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=99, var_1_7=16383, var_1_8=256, var_1_9=5]
[L20] COND FALSE !(!cond)
VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=0, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=99, var_1_7=16383, var_1_8=256, var_1_9=5]
[L69] RET assume_abort_if_not(var_1_8 <= 16383)
VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=0, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=99, var_1_7=16383, var_1_8=256, var_1_9=5]
[L70] var_1_9 = __VERIFIER_nondet_long()
[L71] CALL assume_abort_if_not(var_1_9 >= -2147483648)
VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=0, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=99, var_1_7=16383, var_1_8=256, var_1_9=-2147483648]
[L20] COND FALSE !(!cond)
VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=0, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=99, var_1_7=16383, var_1_8=256, var_1_9=-2147483648]
[L71] RET assume_abort_if_not(var_1_9 >= -2147483648)
VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=0, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=99, var_1_7=16383, var_1_8=256, var_1_9=-2147483648]
[L72] CALL assume_abort_if_not(var_1_9 <= 2147483647)
VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=0, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=99, var_1_7=16383, var_1_8=256, var_1_9=-2147483648]
[L20] COND FALSE !(!cond)
VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=0, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=99, var_1_7=16383, var_1_8=256, var_1_9=-2147483648]
[L72] RET assume_abort_if_not(var_1_9 <= 2147483647)
VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=0, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=99, var_1_7=16383, var_1_8=256, var_1_9=-2147483648]
[L73] var_1_10 = __VERIFIER_nondet_long()
[L74] CALL assume_abort_if_not(var_1_10 >= -2147483648)
VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=-2147483648, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=99, var_1_7=16383, var_1_8=256, var_1_9=-2147483648]
[L20] COND FALSE !(!cond)
VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=-2147483648, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=99, var_1_7=16383, var_1_8=256, var_1_9=-2147483648]
[L74] RET assume_abort_if_not(var_1_10 >= -2147483648)
VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=-2147483648, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=99, var_1_7=16383, var_1_8=256, var_1_9=-2147483648]
[L75] CALL assume_abort_if_not(var_1_10 <= 2147483647)
VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=-2147483648, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=99, var_1_7=16383, var_1_8=256, var_1_9=-2147483648]
[L20] COND FALSE !(!cond)
VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=-2147483648, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=99, var_1_7=16383, var_1_8=256, var_1_9=-2147483648]
[L75] RET assume_abort_if_not(var_1_10 <= 2147483647)
VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=-2147483648, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=99, var_1_7=16383, var_1_8=256, var_1_9=-2147483648]
[L76] var_1_12 = __VERIFIER_nondet_uchar()
[L77] CALL assume_abort_if_not(var_1_12 >= 0)
VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=-2147483648, var_1_11=16, var_1_12=0, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=99, var_1_7=16383, var_1_8=256, var_1_9=-2147483648]
[L20] COND FALSE !(!cond)
VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=-2147483648, var_1_11=16, var_1_12=0, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=99, var_1_7=16383, var_1_8=256, var_1_9=-2147483648]
[L77] RET assume_abort_if_not(var_1_12 >= 0)
VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=-2147483648, var_1_11=16, var_1_12=0, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=99, var_1_7=16383, var_1_8=256, var_1_9=-2147483648]
[L78] CALL assume_abort_if_not(var_1_12 <= 254)
VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=-2147483648, var_1_11=16, var_1_12=0, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=99, var_1_7=16383, var_1_8=256, var_1_9=-2147483648]
[L20] COND FALSE !(!cond)
VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=-2147483648, var_1_11=16, var_1_12=0, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=99, var_1_7=16383, var_1_8=256, var_1_9=-2147483648]
[L78] RET assume_abort_if_not(var_1_12 <= 254)
VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=-2147483648, var_1_11=16, var_1_12=0, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=99, var_1_7=16383, var_1_8=256, var_1_9=-2147483648]
[L79] var_1_13 = __VERIFIER_nondet_uchar()
[L80] CALL assume_abort_if_not(var_1_13 >= 0)
VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=-2147483648, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_15=0, var_1_1=99, var_1_7=16383, var_1_8=256, var_1_9=-2147483648]
[L20] COND FALSE !(!cond)
VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=-2147483648, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_15=0, var_1_1=99, var_1_7=16383, var_1_8=256, var_1_9=-2147483648]
[L80] RET assume_abort_if_not(var_1_13 >= 0)
VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=-2147483648, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_15=0, var_1_1=99, var_1_7=16383, var_1_8=256, var_1_9=-2147483648]
[L81] CALL assume_abort_if_not(var_1_13 <= 254)
VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=-2147483648, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_15=0, var_1_1=99, var_1_7=16383, var_1_8=256, var_1_9=-2147483648]
[L20] COND FALSE !(!cond)
VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=-2147483648, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_15=0, var_1_1=99, var_1_7=16383, var_1_8=256, var_1_9=-2147483648]
[L81] RET assume_abort_if_not(var_1_13 <= 254)
VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=-2147483648, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_15=0, var_1_1=99, var_1_7=16383, var_1_8=256, var_1_9=-2147483648]
[L82] var_1_15 = __VERIFIER_nondet_uchar()
[L83] CALL assume_abort_if_not(var_1_15 >= 0)
VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=-2147483648, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_15=0, var_1_1=99, var_1_7=16383, var_1_8=256, var_1_9=-2147483648]
[L20] COND FALSE !(!cond)
VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=-2147483648, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_15=0, var_1_1=99, var_1_7=16383, var_1_8=256, var_1_9=-2147483648]
[L83] RET assume_abort_if_not(var_1_15 >= 0)
VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=-2147483648, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_15=0, var_1_1=99, var_1_7=16383, var_1_8=256, var_1_9=-2147483648]
[L84] CALL assume_abort_if_not(var_1_15 <= 1)
VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=-2147483648, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_15=0, var_1_1=99, var_1_7=16383, var_1_8=256, var_1_9=-2147483648]
[L20] COND FALSE !(!cond)
VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=-2147483648, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_15=0, var_1_1=99, var_1_7=16383, var_1_8=256, var_1_9=-2147483648]
[L84] RET assume_abort_if_not(var_1_15 <= 1)
VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=-2147483648, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_15=0, var_1_1=99, var_1_7=16383, var_1_8=256, var_1_9=-2147483648]
[L99] RET updateVariables()
[L100] CALL step()
[L37] signed short int stepLocal_3 = var_1_8;
[L38] unsigned long int stepLocal_2 = last_1_var_1_14;
VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, stepLocal_2=256, stepLocal_3=256, var_1_10=-2147483648, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_15=0, var_1_1=99, var_1_7=16383, var_1_8=256, var_1_9=-2147483648]
[L39] COND FALSE !(last_1_var_1_14 > stepLocal_3)
VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, stepLocal_2=256, stepLocal_3=256, var_1_10=-2147483648, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_15=0, var_1_1=99, var_1_7=16383, var_1_8=256, var_1_9=-2147483648]
[L46] EXPR var_1_11 & var_1_7
VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, stepLocal_2=256, stepLocal_3=256, var_1_10=-2147483648, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_15=0, var_1_1=99, var_1_7=16383, var_1_8=256, var_1_9=-2147483648]
[L46] COND FALSE !((var_1_11 & var_1_7) > ((var_1_12 * last_1_var_1_14) * (var_1_11 + var_1_11)))
[L51] var_1_14 = var_1_7
VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, stepLocal_2=256, stepLocal_3=256, var_1_10=-2147483648, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=16383, var_1_15=0, var_1_1=99, var_1_7=16383, var_1_8=256, var_1_9=-2147483648]
[L53] unsigned char stepLocal_1 = var_1_11;
VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, stepLocal_1=16, stepLocal_2=256, stepLocal_3=256, var_1_10=-2147483648, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=16383, var_1_15=0, var_1_1=99, var_1_7=16383, var_1_8=256, var_1_9=-2147483648]
[L54] EXPR var_1_11 ^ ((((var_1_11) > (var_1_14)) ? (var_1_11) : (var_1_14)))
VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, stepLocal_1=16, stepLocal_2=256, stepLocal_3=256, var_1_10=-2147483648, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=16383, var_1_15=0, var_1_1=99, var_1_7=16383, var_1_8=256, var_1_9=-2147483648]
[L54] unsigned long int stepLocal_0 = var_1_11 ^ ((((var_1_11) > (var_1_14)) ? (var_1_11) : (var_1_14)));
[L55] COND FALSE !(stepLocal_0 != var_1_11)
[L60] var_1_1 = 10.5f
VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, stepLocal_0=16, stepLocal_1=16, stepLocal_2=256, stepLocal_3=256, var_1_10=-2147483648, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=16383, var_1_15=0, var_1_7=16383, var_1_8=256, var_1_9=-2147483648]
[L100] RET step()
[L101] CALL, EXPR property()
[L91] EXPR var_1_11 ^ ((((var_1_11) > (var_1_14)) ? (var_1_11) : (var_1_14)))
VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=-2147483648, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=16383, var_1_15=0, var_1_7=16383, var_1_8=256, var_1_9=-2147483648]
[L91] EXPR ((((var_1_11 ^ ((((var_1_11) > (var_1_14)) ? (var_1_11) : (var_1_14)))) != var_1_11) ? ((var_1_11 == (var_1_11 - (var_1_7 - var_1_11))) ? (var_1_1 == ((signed long int) ((((var_1_9) < (var_1_10)) ? (var_1_9) : (var_1_10))))) : 1) : (var_1_1 == ((signed long int) 10.5f))) && ((last_1_var_1_14 > var_1_8) ? ((((last_1_var_1_11 - var_1_8) + var_1_7) > last_1_var_1_14) ? (var_1_11 == ((unsigned char) ((((var_1_12) < (var_1_13)) ? (var_1_12) : (var_1_13))))) : (var_1_11 == ((unsigned char) var_1_12))) : 1)) && (((var_1_11 & var_1_7) > ((var_1_12 * last_1_var_1_14) * (var_1_11 + var_1_11))) ? ((var_1_15 && (var_1_9 > var_1_10)) ? (var_1_14 == ((unsigned long int) var_1_7)) : 1) : (var_1_14 == ((unsigned long int) var_1_7)))
VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=-2147483648, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=16383, var_1_15=0, var_1_1=19, var_1_7=16383, var_1_8=256, var_1_9=-2147483648]
[L91-L92] return ((((var_1_11 ^ ((((var_1_11) > (var_1_14)) ? (var_1_11) : (var_1_14)))) != var_1_11) ? ((var_1_11 == (var_1_11 - (var_1_7 - var_1_11))) ? (var_1_1 == ((signed long int) ((((var_1_9) < (var_1_10)) ? (var_1_9) : (var_1_10))))) : 1) : (var_1_1 == ((signed long int) 10.5f))) && ((last_1_var_1_14 > var_1_8) ? ((((last_1_var_1_11 - var_1_8) + var_1_7) > last_1_var_1_14) ? (var_1_11 == ((unsigned char) ((((var_1_12) < (var_1_13)) ? (var_1_12) : (var_1_13))))) : (var_1_11 == ((unsigned char) var_1_12))) : 1)) && (((var_1_11 & var_1_7) > ((var_1_12 * last_1_var_1_14) * (var_1_11 + var_1_11))) ? ((var_1_15 && (var_1_9 > var_1_10)) ? (var_1_14 == ((unsigned long int) var_1_7)) : 1) : (var_1_14 == ((unsigned long int) var_1_7)))
;
[L101] RET, EXPR property()
[L101] CALL __VERIFIER_assert(property())
[L19] COND TRUE !(cond)
VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=-2147483648, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=16383, var_1_15=0, var_1_1=19, var_1_7=16383, var_1_8=256, var_1_9=-2147483648]
[L19] reach_error()
VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=-2147483648, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=16383, var_1_15=0, var_1_1=19, var_1_7=16383, var_1_8=256, var_1_9=-2147483648]
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 2 procedures, 62 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 32.8s, OverallIterations: 9, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 14.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1452 SdHoareTripleChecker+Valid, 5.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1437 mSDsluCounter, 2792 SdHoareTripleChecker+Invalid, 5.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2129 mSDsCounter, 208 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3022 IncrementalHoareTripleChecker+Invalid, 3230 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 208 mSolverCounterUnsat, 663 mSDtfsCounter, 3022 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1279 GetRequests, 1115 SyntacticMatches, 0 SemanticMatches, 164 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1893 ImplicationChecksByTransitivity, 9.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=332occurred in iteration=7, InterpolantAutomatonStates: 134, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 8 MinimizatonAttempts, 617 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 14.0s InterpolantComputationTime, 992 NumberOfCodeBlocks, 992 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1179 ConstructedInterpolants, 4 QuantifiedInterpolants, 8740 SizeOfPredicates, 66 NumberOfNonLiveVariables, 1946 ConjunctsInSsa, 95 ConjunctsInUnsatCore, 12 InterpolantComputations, 5 PerfectInterpolantSequences, 4092/4368 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces
[2023-11-19 07:38:13,539 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/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
Using bit-precise analysis
Retrying with bit-precise analysis
### Bit-precise run ###
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_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/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_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-18.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/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 6a09075700c0165e7f87ec4195e4b424ce35f231e25baba100aa11fb885230d3
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-9bd2c7f
[2023-11-19 07:38:16,039 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-11-19 07:38:16,125 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2023-11-19 07:38:16,139 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-11-19 07:38:16,140 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-19 07:38:16,172 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-19 07:38:16,172 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-19 07:38:16,173 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-19 07:38:16,174 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-19 07:38:16,179 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-19 07:38:16,180 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-19 07:38:16,180 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-11-19 07:38:16,181 INFO L153 SettingsManager]: * Use SBE=true
[2023-11-19 07:38:16,183 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-19 07:38:16,183 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2023-11-19 07:38:16,184 INFO L153 SettingsManager]: * sizeof long=4
[2023-11-19 07:38:16,184 INFO L153 SettingsManager]: * sizeof POINTER=4
[2023-11-19 07:38:16,184 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-11-19 07:38:16,185 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2023-11-19 07:38:16,186 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-19 07:38:16,186 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2023-11-19 07:38:16,187 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2023-11-19 07:38:16,187 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2023-11-19 07:38:16,188 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2023-11-19 07:38:16,188 INFO L153 SettingsManager]: * sizeof long double=12
[2023-11-19 07:38:16,189 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2023-11-19 07:38:16,189 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-11-19 07:38:16,190 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-19 07:38:16,190 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-11-19 07:38:16,190 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-11-19 07:38:16,192 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:38:16,192 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-19 07:38:16,192 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-11-19 07:38:16,193 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2023-11-19 07:38:16,193 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF
[2023-11-19 07:38:16,193 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-11-19 07:38:16,194 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-19 07:38:16,194 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-19 07:38:16,194 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-11-19 07:38:16,195 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-19 07:38:16,196 INFO L153 SettingsManager]: * Logic for external solver=AUFBV
[2023-11-19 07:38:16,196 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-11-19 07:38:16,196 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_7276b022-f718-4a3e-847f-fac6e090cd6f/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a09075700c0165e7f87ec4195e4b424ce35f231e25baba100aa11fb885230d3
[2023-11-19 07:38:16,647 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-19 07:38:16,676 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-19 07:38:16,679 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-19 07:38:16,680 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-11-19 07:38:16,681 INFO L274 PluginConnector]: CDTParser initialized
[2023-11-19 07:38:16,682 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-18.i
[2023-11-19 07:38:19,722 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-11-19 07:38:19,977 INFO L384 CDTParser]: Found 1 translation units.
[2023-11-19 07:38:19,978 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-18.i
[2023-11-19 07:38:19,987 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/data/7da677737/3d30fee131c444b78d06b53a96bd1253/FLAGce65e1fac
[2023-11-19 07:38:20,003 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/data/7da677737/3d30fee131c444b78d06b53a96bd1253
[2023-11-19 07:38:20,006 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-19 07:38:20,008 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-19 07:38:20,009 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-19 07:38:20,009 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-19 07:38:20,015 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-19 07:38:20,016 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:38:20" (1/1) ...
[2023-11-19 07:38:20,017 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ff97cc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:20, skipping insertion in model container
[2023-11-19 07:38:20,017 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:38:20" (1/1) ...
[2023-11-19 07:38:20,044 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-19 07:38:20,200 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_7276b022-f718-4a3e-847f-fac6e090cd6f/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-18.i[916,929]
[2023-11-19 07:38:20,267 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:38:20,293 INFO L202 MainTranslator]: Completed pre-run
[2023-11-19 07:38:20,316 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_7276b022-f718-4a3e-847f-fac6e090cd6f/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-18.i[916,929]
[2023-11-19 07:38:20,350 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:38:20,375 INFO L206 MainTranslator]: Completed translation
[2023-11-19 07:38:20,376 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:20 WrapperNode
[2023-11-19 07:38:20,376 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-19 07:38:20,377 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-19 07:38:20,378 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-19 07:38:20,379 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-19 07:38:20,387 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:20" (1/1) ...
[2023-11-19 07:38:20,434 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:20" (1/1) ...
[2023-11-19 07:38:20,475 INFO L138 Inliner]: procedures = 27, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 99
[2023-11-19 07:38:20,475 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-19 07:38:20,476 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-19 07:38:20,476 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-19 07:38:20,476 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-11-19 07:38:20,486 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:20" (1/1) ...
[2023-11-19 07:38:20,486 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:20" (1/1) ...
[2023-11-19 07:38:20,497 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:20" (1/1) ...
[2023-11-19 07:38:20,498 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:20" (1/1) ...
[2023-11-19 07:38:20,519 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:20" (1/1) ...
[2023-11-19 07:38:20,523 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:20" (1/1) ...
[2023-11-19 07:38:20,525 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:20" (1/1) ...
[2023-11-19 07:38:20,537 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:20" (1/1) ...
[2023-11-19 07:38:20,541 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-19 07:38:20,542 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-19 07:38:20,542 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-11-19 07:38:20,542 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-11-19 07:38:20,543 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:20" (1/1) ...
[2023-11-19 07:38:20,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:38:20,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:38:20,591 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-11-19 07:38:20,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-11-19 07:38:20,645 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-19 07:38:20,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2023-11-19 07:38:20,646 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-11-19 07:38:20,647 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-11-19 07:38:20,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-19 07:38:20,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-19 07:38:20,771 INFO L236 CfgBuilder]: Building ICFG
[2023-11-19 07:38:20,774 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-19 07:38:21,184 INFO L277 CfgBuilder]: Performing block encoding
[2023-11-19 07:38:21,192 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-19 07:38:21,193 INFO L302 CfgBuilder]: Removed 1 assume(true) statements.
[2023-11-19 07:38:21,196 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:38:21 BoogieIcfgContainer
[2023-11-19 07:38:21,197 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-19 07:38:21,200 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-19 07:38:21,200 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2023-11-19 07:38:21,204 INFO L274 PluginConnector]: TraceAbstraction initialized
[2023-11-19 07:38:21,204 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:38:20" (1/3) ...
[2023-11-19 07:38:21,205 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69a12dc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:38:21, skipping insertion in model container
[2023-11-19 07:38:21,206 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:20" (2/3) ...
[2023-11-19 07:38:21,206 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69a12dc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:38:21, skipping insertion in model container
[2023-11-19 07:38:21,206 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:38:21" (3/3) ...
[2023-11-19 07:38:21,208 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-18.i
[2023-11-19 07:38:21,229 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-19 07:38:21,229 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-11-19 07:38:21,282 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-19 07:38:21,289 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;@567f6173, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-11-19 07:38:21,290 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-11-19 07:38:21,294 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 30 states have (on average 1.3666666666666667) internal successors, (41), 31 states have internal predecessors, (41), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14)
[2023-11-19 07:38:21,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91
[2023-11-19 07:38:21,307 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:38:21,308 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:38:21,308 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-19 07:38:21,314 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:38:21,315 INFO L85 PathProgramCache]: Analyzing trace with hash -890329808, now seen corresponding path program 1 times
[2023-11-19 07:38:21,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-19 07:38:21,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2096782910]
[2023-11-19 07:38:21,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:38:21,330 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-11-19 07:38:21,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/mathsat
[2023-11-19 07:38:21,337 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-11-19 07:38:21,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2023-11-19 07:38:21,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:38:21,525 INFO L262 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-11-19 07:38:21,535 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:38:21,577 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 170 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked.
[2023-11-19 07:38:21,577 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 07:38:21,578 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-19 07:38:21,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2096782910]
[2023-11-19 07:38:21,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2096782910] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:38:21,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:38:21,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-19 07:38:21,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863052304]
[2023-11-19 07:38:21,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:38:21,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-11-19 07:38:21,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-19 07:38:21,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-11-19 07:38:21,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-11-19 07:38:21,620 INFO L87 Difference]: Start difference. First operand has 47 states, 30 states have (on average 1.3666666666666667) internal successors, (41), 31 states have internal predecessors, (41), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14)
[2023-11-19 07:38:21,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:38:21,649 INFO L93 Difference]: Finished difference Result 87 states and 146 transitions.
[2023-11-19 07:38:21,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2023-11-19 07:38:21,651 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 90
[2023-11-19 07:38:21,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:38:21,659 INFO L225 Difference]: With dead ends: 87
[2023-11-19 07:38:21,660 INFO L226 Difference]: Without dead ends: 43
[2023-11-19 07:38:21,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 89 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 07:38:21,667 INFO L413 NwaCegarLoop]: 62 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, 62 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 07:38:21,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-19 07:38:21,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states.
[2023-11-19 07:38:21,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43.
[2023-11-19 07:38:21,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 27 states have internal predecessors, (34), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14)
[2023-11-19 07:38:21,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 62 transitions.
[2023-11-19 07:38:21,714 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 62 transitions. Word has length 90
[2023-11-19 07:38:21,715 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:38:21,715 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 62 transitions.
[2023-11-19 07:38:21,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14)
[2023-11-19 07:38:21,715 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 62 transitions.
[2023-11-19 07:38:21,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91
[2023-11-19 07:38:21,720 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:38:21,720 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:38:21,725 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0
[2023-11-19 07:38:21,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-11-19 07:38:21,925 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-19 07:38:21,925 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:38:21,925 INFO L85 PathProgramCache]: Analyzing trace with hash -890514448, now seen corresponding path program 1 times
[2023-11-19 07:38:21,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-19 07:38:21,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [419885041]
[2023-11-19 07:38:21,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:38:21,927 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-11-19 07:38:21,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/mathsat
[2023-11-19 07:38:21,929 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-11-19 07:38:21,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2023-11-19 07:38:22,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:38:22,086 INFO L262 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 7 conjunts are in the unsatisfiable core
[2023-11-19 07:38:22,094 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:38:22,984 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 13 proven. 39 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked.
[2023-11-19 07:38:22,984 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-11-19 07:38:23,504 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked.
[2023-11-19 07:38:23,504 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-19 07:38:23,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [419885041]
[2023-11-19 07:38:23,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [419885041] provided 0 perfect and 2 imperfect interpolant sequences
[2023-11-19 07:38:23,505 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-11-19 07:38:23,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13
[2023-11-19 07:38:23,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563150486]
[2023-11-19 07:38:23,506 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-11-19 07:38:23,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2023-11-19 07:38:23,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-19 07:38:23,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2023-11-19 07:38:23,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156
[2023-11-19 07:38:23,517 INFO L87 Difference]: Start difference. First operand 43 states and 62 transitions. Second operand has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 4 states have call successors, (28), 3 states have call predecessors, (28), 4 states have return successors, (28), 2 states have call predecessors, (28), 4 states have call successors, (28)
[2023-11-19 07:38:25,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:38:25,428 INFO L93 Difference]: Finished difference Result 224 states and 315 transitions.
[2023-11-19 07:38:25,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states.
[2023-11-19 07:38:25,429 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 4 states have call successors, (28), 3 states have call predecessors, (28), 4 states have return successors, (28), 2 states have call predecessors, (28), 4 states have call successors, (28) Word has length 90
[2023-11-19 07:38:25,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 07:38:25,434 INFO L225 Difference]: With dead ends: 224
[2023-11-19 07:38:25,434 INFO L226 Difference]: Without dead ends: 184
[2023-11-19 07:38:25,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=278, Invalid=534, Unknown=0, NotChecked=0, Total=812
[2023-11-19 07:38:25,437 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 208 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time
[2023-11-19 07:38:25,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 250 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time]
[2023-11-19 07:38:25,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states.
[2023-11-19 07:38:25,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 92.
[2023-11-19 07:38:25,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 59 states have (on average 1.2203389830508475) internal successors, (72), 59 states have internal predecessors, (72), 28 states have call successors, (28), 4 states have call predecessors, (28), 4 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28)
[2023-11-19 07:38:25,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 128 transitions.
[2023-11-19 07:38:25,482 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 128 transitions. Word has length 90
[2023-11-19 07:38:25,483 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 07:38:25,483 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 128 transitions.
[2023-11-19 07:38:25,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 4 states have call successors, (28), 3 states have call predecessors, (28), 4 states have return successors, (28), 2 states have call predecessors, (28), 4 states have call successors, (28)
[2023-11-19 07:38:25,484 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 128 transitions.
[2023-11-19 07:38:25,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92
[2023-11-19 07:38:25,486 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 07:38:25,486 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:38:25,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0
[2023-11-19 07:38:25,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-11-19 07:38:25,690 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-19 07:38:25,691 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:38:25,691 INFO L85 PathProgramCache]: Analyzing trace with hash -2069857370, now seen corresponding path program 1 times
[2023-11-19 07:38:25,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-19 07:38:25,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1788228603]
[2023-11-19 07:38:25,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:38:25,692 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-11-19 07:38:25,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/mathsat
[2023-11-19 07:38:25,694 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-11-19 07:38:25,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7276b022-f718-4a3e-847f-fac6e090cd6f/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process
[2023-11-19 07:38:25,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:38:25,799 INFO L262 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 22 conjunts are in the unsatisfiable core
[2023-11-19 07:38:25,806 INFO L285 TraceCheckSpWp]: Computing forward predicates...