./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/Muller_Kahan.c.p+cfa-reducer.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version 63182f13
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/Muller_Kahan.c.p+cfa-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y --witnessprinter.witness.filename witness.graphml --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 0209c9293388eb915387172d6fa3be69dfb35a1de5258b69ac610130c33e2610
--- Real Ultimate output ---
This is Ultimate 0.2.1-dev-63182f1
[2021-11-13 18:03:50,096 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-11-13 18:03:50,098 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-11-13 18:03:50,140 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-11-13 18:03:50,140 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-11-13 18:03:50,143 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-11-13 18:03:50,145 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-11-13 18:03:50,149 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-11-13 18:03:50,152 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-11-13 18:03:50,153 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-11-13 18:03:50,155 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-11-13 18:03:50,157 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-11-13 18:03:50,158 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-11-13 18:03:50,160 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-11-13 18:03:50,163 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-11-13 18:03:50,165 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-11-13 18:03:50,167 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-11-13 18:03:50,168 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-11-13 18:03:50,171 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-11-13 18:03:50,175 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-11-13 18:03:50,177 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-11-13 18:03:50,183 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-11-13 18:03:50,185 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-11-13 18:03:50,186 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-11-13 18:03:50,191 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-11-13 18:03:50,192 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-11-13 18:03:50,192 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-11-13 18:03:50,194 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-11-13 18:03:50,203 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-11-13 18:03:50,205 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-11-13 18:03:50,205 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-11-13 18:03:50,207 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-11-13 18:03:50,210 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-11-13 18:03:50,212 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2021-11-13 18:03:50,214 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-11-13 18:03:50,215 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2021-11-13 18:03:50,216 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-11-13 18:03:50,216 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-11-13 18:03:50,217 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2021-11-13 18:03:50,219 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2021-11-13 18:03:50,220 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-11-13 18:03:50,222 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf
[2021-11-13 18:03:50,276 INFO L113 SettingsManager]: Loading preferences was successful
[2021-11-13 18:03:50,277 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-11-13 18:03:50,277 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-11-13 18:03:50,278 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-11-13 18:03:50,279 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2021-11-13 18:03:50,279 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2021-11-13 18:03:50,280 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-11-13 18:03:50,280 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2021-11-13 18:03:50,281 INFO L138 SettingsManager]: * Use SBE=true
[2021-11-13 18:03:50,281 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-11-13 18:03:50,281 INFO L138 SettingsManager]: * sizeof long=4
[2021-11-13 18:03:50,282 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2021-11-13 18:03:50,282 INFO L138 SettingsManager]: * sizeof POINTER=4
[2021-11-13 18:03:50,282 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-11-13 18:03:50,283 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2021-11-13 18:03:50,283 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-11-13 18:03:50,283 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2021-11-13 18:03:50,284 INFO L138 SettingsManager]: * sizeof long double=12
[2021-11-13 18:03:50,284 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2021-11-13 18:03:50,284 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-11-13 18:03:50,285 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2021-11-13 18:03:50,285 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-11-13 18:03:50,285 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-11-13 18:03:50,286 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2021-11-13 18:03:50,286 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-13 18:03:50,286 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-11-13 18:03:50,287 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2021-11-13 18:03:50,287 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-11-13 18:03:50,287 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2021-11-13 18:03:50,287 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-11-13 18:03:50,288 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF
[2021-11-13 18:03:50,288 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2021-11-13 18:03:50,288 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-11-13 18:03:50,289 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2021-11-13 18:03:50,289 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
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_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0209c9293388eb915387172d6fa3be69dfb35a1de5258b69ac610130c33e2610
[2021-11-13 18:03:50,701 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-11-13 18:03:50,731 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-11-13 18:03:50,735 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-11-13 18:03:50,736 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-11-13 18:03:50,737 INFO L275 PluginConnector]: CDTParser initialized
[2021-11-13 18:03:50,739 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/float-benchs/Muller_Kahan.c.p+cfa-reducer.c
[2021-11-13 18:03:50,828 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/data/146369ec9/4af481409ec845f8aabfb6289e1559d3/FLAG2b4a6155f
[2021-11-13 18:03:51,427 INFO L306 CDTParser]: Found 1 translation units.
[2021-11-13 18:03:51,429 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/sv-benchmarks/c/float-benchs/Muller_Kahan.c.p+cfa-reducer.c
[2021-11-13 18:03:51,443 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/data/146369ec9/4af481409ec845f8aabfb6289e1559d3/FLAG2b4a6155f
[2021-11-13 18:03:51,750 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/data/146369ec9/4af481409ec845f8aabfb6289e1559d3
[2021-11-13 18:03:51,753 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-11-13 18:03:51,755 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2021-11-13 18:03:51,759 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-11-13 18:03:51,759 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-11-13 18:03:51,776 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-11-13 18:03:51,778 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:03:51" (1/1) ...
[2021-11-13 18:03:51,780 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12e0be45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:03:51, skipping insertion in model container
[2021-11-13 18:03:51,781 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:03:51" (1/1) ...
[2021-11-13 18:03:51,790 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-11-13 18:03:51,811 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-11-13 18:03:52,080 WARN L228 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_ca2afd79-7771-4864-be17-0fbc81f70d36/sv-benchmarks/c/float-benchs/Muller_Kahan.c.p+cfa-reducer.c[964,977]
[2021-11-13 18:03:52,086 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-11-13 18:03:52,098 INFO L203 MainTranslator]: Completed pre-run
[2021-11-13 18:03:52,120 WARN L228 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_ca2afd79-7771-4864-be17-0fbc81f70d36/sv-benchmarks/c/float-benchs/Muller_Kahan.c.p+cfa-reducer.c[964,977]
[2021-11-13 18:03:52,121 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-11-13 18:03:52,139 INFO L208 MainTranslator]: Completed translation
[2021-11-13 18:03:52,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:03:52 WrapperNode
[2021-11-13 18:03:52,140 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-11-13 18:03:52,141 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-11-13 18:03:52,142 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-11-13 18:03:52,142 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2021-11-13 18:03:52,152 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:03:52" (1/1) ...
[2021-11-13 18:03:52,162 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:03:52" (1/1) ...
[2021-11-13 18:03:52,184 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-11-13 18:03:52,185 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-11-13 18:03:52,186 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-11-13 18:03:52,186 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-11-13 18:03:52,196 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:03:52" (1/1) ...
[2021-11-13 18:03:52,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:03:52" (1/1) ...
[2021-11-13 18:03:52,198 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:03:52" (1/1) ...
[2021-11-13 18:03:52,199 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:03:52" (1/1) ...
[2021-11-13 18:03:52,220 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:03:52" (1/1) ...
[2021-11-13 18:03:52,223 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:03:52" (1/1) ...
[2021-11-13 18:03:52,224 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:03:52" (1/1) ...
[2021-11-13 18:03:52,227 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-11-13 18:03:52,228 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-11-13 18:03:52,228 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-11-13 18:03:52,228 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-11-13 18:03:52,232 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:03:52" (1/1) ...
[2021-11-13 18:03:52,242 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-13 18:03:52,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 18:03:52,277 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2021-11-13 18:03:52,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2021-11-13 18:03:52,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-11-13 18:03:52,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-11-13 18:03:52,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2021-11-13 18:03:52,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-11-13 18:03:52,578 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-11-13 18:03:52,579 INFO L299 CfgBuilder]: Removed 0 assume(true) statements.
[2021-11-13 18:03:52,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:03:52 BoogieIcfgContainer
[2021-11-13 18:03:52,582 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-11-13 18:03:52,584 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-11-13 18:03:52,584 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2021-11-13 18:03:52,589 INFO L275 PluginConnector]: TraceAbstraction initialized
[2021-11-13 18:03:52,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 06:03:51" (1/3) ...
[2021-11-13 18:03:52,591 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@602fff32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:03:52, skipping insertion in model container
[2021-11-13 18:03:52,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:03:52" (2/3) ...
[2021-11-13 18:03:52,591 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@602fff32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:03:52, skipping insertion in model container
[2021-11-13 18:03:52,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:03:52" (3/3) ...
[2021-11-13 18:03:52,593 INFO L111 eAbstractionObserver]: Analyzing ICFG Muller_Kahan.c.p+cfa-reducer.c
[2021-11-13 18:03:52,601 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-11-13 18:03:52,601 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2021-11-13 18:03:52,667 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-11-13 18:03:52,676 INFO L339 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=LoopsAndPotentialCycles, 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, mLoopAccelerationTechnique=FAST_UPR
[2021-11-13 18:03:52,676 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2021-11-13 18:03:52,693 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 18:03:52,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2021-11-13 18:03:52,700 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:03:52,701 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 18:03:52,701 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 18:03:52,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:03:52,709 INFO L85 PathProgramCache]: Analyzing trace with hash 207177897, now seen corresponding path program 1 times
[2021-11-13 18:03:52,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 18:03:52,721 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945702378]
[2021-11-13 18:03:52,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:03:52,727 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 18:03:52,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:03:53,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:03:53,027 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-13 18:03:53,027 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945702378]
[2021-11-13 18:03:53,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945702378] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:03:53,029 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:03:53,029 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-11-13 18:03:53,032 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269209090]
[2021-11-13 18:03:53,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-13 18:03:53,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-11-13 18:03:53,039 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-13 18:03:53,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-11-13 18:03:53,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-11-13 18:03:53,102 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 18:03:53,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:03:53,148 INFO L93 Difference]: Finished difference Result 24 states and 30 transitions.
[2021-11-13 18:03:53,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-11-13 18:03:53,165 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8
[2021-11-13 18:03:53,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:03:53,196 INFO L225 Difference]: With dead ends: 24
[2021-11-13 18:03:53,197 INFO L226 Difference]: Without dead ends: 11
[2021-11-13 18:03:53,206 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-11-13 18:03:53,211 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.74ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.92ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.59ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:03:53,213 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 26 Invalid, 3 Unknown, 0 Unchecked, 0.92ms Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 18.59ms Time]
[2021-11-13 18:03:53,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states.
[2021-11-13 18:03:53,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11.
[2021-11-13 18:03:53,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 18:03:53,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions.
[2021-11-13 18:03:53,263 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 8
[2021-11-13 18:03:53,264 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:03:53,265 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions.
[2021-11-13 18:03:53,265 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 18:03:53,267 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions.
[2021-11-13 18:03:53,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2021-11-13 18:03:53,268 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:03:53,269 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 18:03:53,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-11-13 18:03:53,270 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 18:03:53,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:03:53,275 INFO L85 PathProgramCache]: Analyzing trace with hash 263819657, now seen corresponding path program 1 times
[2021-11-13 18:03:53,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 18:03:53,276 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487168868]
[2021-11-13 18:03:53,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:03:53,277 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 18:03:53,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:03:53,407 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:03:53,408 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-13 18:03:53,408 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487168868]
[2021-11-13 18:03:53,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487168868] provided 0 perfect and 1 imperfect interpolant sequences
[2021-11-13 18:03:53,409 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1887830804]
[2021-11-13 18:03:53,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:03:53,409 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-13 18:03:53,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 18:03:53,413 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-11-13 18:03:53,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2021-11-13 18:03:53,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:03:53,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 3 conjunts are in the unsatisfiable core
[2021-11-13 18:03:53,516 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:03:53,605 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:03:53,605 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:03:53,689 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:03:53,690 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1887830804] provided 0 perfect and 2 imperfect interpolant sequences
[2021-11-13 18:03:53,690 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2021-11-13 18:03:53,690 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7
[2021-11-13 18:03:53,692 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067145730]
[2021-11-13 18:03:53,692 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2021-11-13 18:03:53,693 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2021-11-13 18:03:53,693 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-13 18:03:53,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2021-11-13 18:03:53,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42
[2021-11-13 18:03:53,695 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 18:03:53,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:03:53,717 INFO L93 Difference]: Finished difference Result 21 states and 27 transitions.
[2021-11-13 18:03:53,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2021-11-13 18:03:53,718 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9
[2021-11-13 18:03:53,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:03:53,719 INFO L225 Difference]: With dead ends: 21
[2021-11-13 18:03:53,719 INFO L226 Difference]: Without dead ends: 14
[2021-11-13 18:03:53,719 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42
[2021-11-13 18:03:53,722 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.45ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.00ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.06ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:03:53,723 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 29 Invalid, 10 Unknown, 0 Unchecked, 1.00ms Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 12.06ms Time]
[2021-11-13 18:03:53,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states.
[2021-11-13 18:03:53,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14.
[2021-11-13 18:03:53,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 18:03:53,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions.
[2021-11-13 18:03:53,735 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 9
[2021-11-13 18:03:53,736 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:03:53,737 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions.
[2021-11-13 18:03:53,737 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 18:03:53,738 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions.
[2021-11-13 18:03:53,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2021-11-13 18:03:53,739 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:03:53,740 INFO L514 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 18:03:53,790 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2021-11-13 18:03:53,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-13 18:03:53,955 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 18:03:53,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:03:53,956 INFO L85 PathProgramCache]: Analyzing trace with hash 110395561, now seen corresponding path program 2 times
[2021-11-13 18:03:53,957 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 18:03:53,957 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829876669]
[2021-11-13 18:03:53,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:03:53,958 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 18:03:54,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:03:54,089 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2021-11-13 18:03:54,090 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-13 18:03:54,090 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829876669]
[2021-11-13 18:03:54,090 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829876669] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:03:54,091 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:03:54,091 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2021-11-13 18:03:54,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750174458]
[2021-11-13 18:03:54,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-13 18:03:54,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-11-13 18:03:54,100 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-13 18:03:54,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-11-13 18:03:54,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-11-13 18:03:54,102 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 18:03:54,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:03:54,145 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions.
[2021-11-13 18:03:54,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2021-11-13 18:03:54,147 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12
[2021-11-13 18:03:54,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:03:54,149 INFO L225 Difference]: With dead ends: 18
[2021-11-13 18:03:54,149 INFO L226 Difference]: Without dead ends: 14
[2021-11-13 18:03:54,150 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2021-11-13 18:03:54,156 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 1 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.80ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.86ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:03:54,158 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 27 Invalid, 8 Unknown, 0 Unchecked, 2.80ms Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 17.86ms Time]
[2021-11-13 18:03:54,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states.
[2021-11-13 18:03:54,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14.
[2021-11-13 18:03:54,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 13 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 18:03:54,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions.
[2021-11-13 18:03:54,170 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 12
[2021-11-13 18:03:54,171 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:03:54,171 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions.
[2021-11-13 18:03:54,172 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 18:03:54,172 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions.
[2021-11-13 18:03:54,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2021-11-13 18:03:54,173 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:03:54,174 INFO L514 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 18:03:54,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2021-11-13 18:03:54,176 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 18:03:54,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:03:54,189 INFO L85 PathProgramCache]: Analyzing trace with hash 127406222, now seen corresponding path program 1 times
[2021-11-13 18:03:54,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 18:03:54,191 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560431199]
[2021-11-13 18:03:54,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:03:54,191 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 18:03:54,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:03:54,345 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:03:54,345 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-13 18:03:54,346 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560431199]
[2021-11-13 18:03:54,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560431199] provided 0 perfect and 1 imperfect interpolant sequences
[2021-11-13 18:03:54,347 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [375695424]
[2021-11-13 18:03:54,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:03:54,349 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-13 18:03:54,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 18:03:54,355 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-11-13 18:03:54,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2021-11-13 18:03:54,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:03:54,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 6 conjunts are in the unsatisfiable core
[2021-11-13 18:03:54,413 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:03:54,467 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:03:54,467 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:03:54,594 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:03:54,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [375695424] provided 0 perfect and 2 imperfect interpolant sequences
[2021-11-13 18:03:54,595 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2021-11-13 18:03:54,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13
[2021-11-13 18:03:54,596 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461766046]
[2021-11-13 18:03:54,596 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2021-11-13 18:03:54,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2021-11-13 18:03:54,597 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-13 18:03:54,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2021-11-13 18:03:54,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156
[2021-11-13 18:03:54,599 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand has 13 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 13 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 18:03:54,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:03:54,634 INFO L93 Difference]: Finished difference Result 27 states and 34 transitions.
[2021-11-13 18:03:54,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2021-11-13 18:03:54,635 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 13 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12
[2021-11-13 18:03:54,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:03:54,636 INFO L225 Difference]: With dead ends: 27
[2021-11-13 18:03:54,636 INFO L226 Difference]: Without dead ends: 20
[2021-11-13 18:03:54,637 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156
[2021-11-13 18:03:54,639 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 0 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.86ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.15ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.57ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:03:54,639 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 34 Invalid, 24 Unknown, 0 Unchecked, 1.15ms Time], IncrementalHoareTripleChecker [9 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 22.57ms Time]
[2021-11-13 18:03:54,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states.
[2021-11-13 18:03:54,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20.
[2021-11-13 18:03:54,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.105263157894737) internal successors, (21), 19 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 18:03:54,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions.
[2021-11-13 18:03:54,646 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 12
[2021-11-13 18:03:54,646 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:03:54,646 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions.
[2021-11-13 18:03:54,646 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 13 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 18:03:54,647 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions.
[2021-11-13 18:03:54,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2021-11-13 18:03:54,648 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:03:54,648 INFO L514 BasicCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 18:03:54,696 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2021-11-13 18:03:54,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-13 18:03:54,874 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 18:03:54,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:03:54,875 INFO L85 PathProgramCache]: Analyzing trace with hash 1352950926, now seen corresponding path program 2 times
[2021-11-13 18:03:54,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 18:03:54,875 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354536991]
[2021-11-13 18:03:54,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:03:54,876 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 18:03:54,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:03:55,086 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:03:55,086 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-13 18:03:55,086 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354536991]
[2021-11-13 18:03:55,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354536991] provided 0 perfect and 1 imperfect interpolant sequences
[2021-11-13 18:03:55,087 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [189724830]
[2021-11-13 18:03:55,087 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2021-11-13 18:03:55,087 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-13 18:03:55,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 18:03:55,089 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-11-13 18:03:55,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2021-11-13 18:03:55,167 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2021-11-13 18:03:55,167 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-11-13 18:03:55,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 12 conjunts are in the unsatisfiable core
[2021-11-13 18:03:55,172 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:03:55,289 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:03:55,289 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:03:55,659 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:03:55,659 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [189724830] provided 0 perfect and 2 imperfect interpolant sequences
[2021-11-13 18:03:55,660 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2021-11-13 18:03:55,660 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25
[2021-11-13 18:03:55,660 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002348478]
[2021-11-13 18:03:55,661 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2021-11-13 18:03:55,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states
[2021-11-13 18:03:55,664 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-13 18:03:55,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants.
[2021-11-13 18:03:55,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600
[2021-11-13 18:03:55,669 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand has 25 states, 25 states have (on average 1.28) internal successors, (32), 25 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 18:03:55,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:03:55,773 INFO L93 Difference]: Finished difference Result 39 states and 52 transitions.
[2021-11-13 18:03:55,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states.
[2021-11-13 18:03:55,774 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 1.28) internal successors, (32), 25 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18
[2021-11-13 18:03:55,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:03:55,777 INFO L225 Difference]: With dead ends: 39
[2021-11-13 18:03:55,777 INFO L226 Difference]: Without dead ends: 32
[2021-11-13 18:03:55,779 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600
[2021-11-13 18:03:55,782 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 0 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.50ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.01ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51.76ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:03:55,783 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 26 Invalid, 41 Unknown, 0 Unchecked, 3.01ms Time], IncrementalHoareTripleChecker [15 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 51.76ms Time]
[2021-11-13 18:03:55,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states.
[2021-11-13 18:03:55,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32.
[2021-11-13 18:03:55,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.064516129032258) internal successors, (33), 31 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 18:03:55,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions.
[2021-11-13 18:03:55,803 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 18
[2021-11-13 18:03:55,803 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:03:55,804 INFO L470 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions.
[2021-11-13 18:03:55,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 1.28) internal successors, (32), 25 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 18:03:55,807 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions.
[2021-11-13 18:03:55,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31
[2021-11-13 18:03:55,809 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:03:55,810 INFO L514 BasicCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 18:03:55,853 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2021-11-13 18:03:56,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-13 18:03:56,035 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 18:03:56,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:03:56,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1095765134, now seen corresponding path program 3 times
[2021-11-13 18:03:56,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 18:03:56,037 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796546231]
[2021-11-13 18:03:56,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:03:56,037 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 18:03:56,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:03:56,586 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:03:56,587 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-13 18:03:56,587 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796546231]
[2021-11-13 18:03:56,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796546231] provided 0 perfect and 1 imperfect interpolant sequences
[2021-11-13 18:03:56,588 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1114337022]
[2021-11-13 18:03:56,588 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2021-11-13 18:03:56,588 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-13 18:03:56,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 18:03:56,595 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-11-13 18:03:56,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2021-11-13 18:03:56,716 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s)
[2021-11-13 18:03:56,716 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-11-13 18:03:56,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 24 conjunts are in the unsatisfiable core
[2021-11-13 18:03:56,721 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:03:56,874 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:03:56,874 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:03:57,962 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:03:57,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1114337022] provided 0 perfect and 2 imperfect interpolant sequences
[2021-11-13 18:03:57,962 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2021-11-13 18:03:57,963 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 49
[2021-11-13 18:03:57,963 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124213578]
[2021-11-13 18:03:57,963 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2021-11-13 18:03:57,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 49 states
[2021-11-13 18:03:57,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-13 18:03:57,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants.
[2021-11-13 18:03:57,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352
[2021-11-13 18:03:57,968 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand has 49 states, 49 states have (on average 1.1428571428571428) internal successors, (56), 49 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 18:03:58,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:03:58,109 INFO L93 Difference]: Finished difference Result 63 states and 88 transitions.
[2021-11-13 18:03:58,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states.
[2021-11-13 18:03:58,110 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 1.1428571428571428) internal successors, (56), 49 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30
[2021-11-13 18:03:58,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:03:58,112 INFO L225 Difference]: With dead ends: 63
[2021-11-13 18:03:58,113 INFO L226 Difference]: Without dead ends: 56
[2021-11-13 18:03:58,115 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352
[2021-11-13 18:03:58,118 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 0 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 61.15ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.61ms SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 89.11ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:03:58,119 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 58 Invalid, 81 Unknown, 0 Unchecked, 5.61ms Time], IncrementalHoareTripleChecker [27 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 89.11ms Time]
[2021-11-13 18:03:58,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states.
[2021-11-13 18:03:58,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56.
[2021-11-13 18:03:58,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 55 states have (on average 1.0363636363636364) internal successors, (57), 55 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 18:03:58,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 57 transitions.
[2021-11-13 18:03:58,142 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 57 transitions. Word has length 30
[2021-11-13 18:03:58,143 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:03:58,143 INFO L470 AbstractCegarLoop]: Abstraction has 56 states and 57 transitions.
[2021-11-13 18:03:58,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 1.1428571428571428) internal successors, (56), 49 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 18:03:58,144 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 57 transitions.
[2021-11-13 18:03:58,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55
[2021-11-13 18:03:58,151 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:03:58,151 INFO L514 BasicCegarLoop]: trace histogram [46, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 18:03:58,191 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2021-11-13 18:03:58,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-13 18:03:58,379 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 18:03:58,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:03:58,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1745658738, now seen corresponding path program 4 times
[2021-11-13 18:03:58,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 18:03:58,381 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412235849]
[2021-11-13 18:03:58,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:03:58,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 18:03:58,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:03:59,854 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:03:59,855 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-13 18:03:59,855 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412235849]
[2021-11-13 18:03:59,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412235849] provided 0 perfect and 1 imperfect interpolant sequences
[2021-11-13 18:03:59,856 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1758141351]
[2021-11-13 18:03:59,856 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2021-11-13 18:03:59,856 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-13 18:03:59,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 18:03:59,858 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-11-13 18:03:59,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2021-11-13 18:03:59,963 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2021-11-13 18:03:59,963 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-11-13 18:03:59,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 48 conjunts are in the unsatisfiable core
[2021-11-13 18:03:59,971 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:04:00,258 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:04:00,258 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:04:03,871 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:04:03,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1758141351] provided 0 perfect and 2 imperfect interpolant sequences
[2021-11-13 18:04:03,871 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2021-11-13 18:04:03,872 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49, 49] total 97
[2021-11-13 18:04:03,872 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464585335]
[2021-11-13 18:04:03,872 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2021-11-13 18:04:03,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 97 states
[2021-11-13 18:04:03,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-13 18:04:03,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants.
[2021-11-13 18:04:03,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4656, Invalid=4656, Unknown=0, NotChecked=0, Total=9312
[2021-11-13 18:04:03,894 INFO L87 Difference]: Start difference. First operand 56 states and 57 transitions. Second operand has 97 states, 97 states have (on average 1.0721649484536082) internal successors, (104), 97 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 18:04:04,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:04:04,200 INFO L93 Difference]: Finished difference Result 111 states and 160 transitions.
[2021-11-13 18:04:04,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states.
[2021-11-13 18:04:04,201 INFO L78 Accepts]: Start accepts. Automaton has has 97 states, 97 states have (on average 1.0721649484536082) internal successors, (104), 97 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54
[2021-11-13 18:04:04,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:04:04,207 INFO L225 Difference]: With dead ends: 111
[2021-11-13 18:04:04,208 INFO L226 Difference]: Without dead ends: 104
[2021-11-13 18:04:04,213 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=4656, Invalid=4656, Unknown=0, NotChecked=0, Total=9312
[2021-11-13 18:04:04,215 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 0 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 101.89ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.01ms SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 132.95ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:04:04,215 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 153 Unknown, 0 Unchecked, 8.01ms Time], IncrementalHoareTripleChecker [50 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 132.95ms Time]
[2021-11-13 18:04:04,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states.
[2021-11-13 18:04:04,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104.
[2021-11-13 18:04:04,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 103 states have (on average 1.0194174757281553) internal successors, (105), 103 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 18:04:04,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 105 transitions.
[2021-11-13 18:04:04,243 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 105 transitions. Word has length 54
[2021-11-13 18:04:04,244 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:04:04,244 INFO L470 AbstractCegarLoop]: Abstraction has 104 states and 105 transitions.
[2021-11-13 18:04:04,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 97 states, 97 states have (on average 1.0721649484536082) internal successors, (104), 97 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 18:04:04,245 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 105 transitions.
[2021-11-13 18:04:04,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103
[2021-11-13 18:04:04,249 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:04:04,250 INFO L514 BasicCegarLoop]: trace histogram [94, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 18:04:04,302 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2021-11-13 18:04:04,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-13 18:04:04,475 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 18:04:04,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:04:04,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1919548558, now seen corresponding path program 5 times
[2021-11-13 18:04:04,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 18:04:04,476 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542270833]
[2021-11-13 18:04:04,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:04:04,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 18:04:04,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:04:08,759 INFO L134 CoverageAnalysis]: Checked inductivity of 4465 backedges. 0 proven. 4465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:04:08,760 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-13 18:04:08,760 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542270833]
[2021-11-13 18:04:08,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542270833] provided 0 perfect and 1 imperfect interpolant sequences
[2021-11-13 18:04:08,760 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [3159212]
[2021-11-13 18:04:08,760 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
[2021-11-13 18:04:08,761 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-13 18:04:08,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 18:04:08,762 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-11-13 18:04:08,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2021-11-13 18:04:09,008 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 48 check-sat command(s)
[2021-11-13 18:04:09,008 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-11-13 18:04:09,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 708 conjuncts, 96 conjunts are in the unsatisfiable core
[2021-11-13 18:04:09,021 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:04:09,410 INFO L134 CoverageAnalysis]: Checked inductivity of 4465 backedges. 0 proven. 4465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:04:09,410 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:04:10,142 INFO L134 CoverageAnalysis]: Checked inductivity of 4465 backedges. 0 proven. 4465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:04:10,143 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [3159212] provided 0 perfect and 2 imperfect interpolant sequences
[2021-11-13 18:04:10,143 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2021-11-13 18:04:10,143 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [97, 97, 97] total 103
[2021-11-13 18:04:10,143 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934672603]
[2021-11-13 18:04:10,144 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2021-11-13 18:04:10,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 103 states
[2021-11-13 18:04:10,147 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-13 18:04:10,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 103 interpolants.
[2021-11-13 18:04:10,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5253, Invalid=5253, Unknown=0, NotChecked=0, Total=10506
[2021-11-13 18:04:10,155 INFO L87 Difference]: Start difference. First operand 104 states and 105 transitions. Second operand has 103 states, 103 states have (on average 1.0776699029126213) internal successors, (111), 103 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 18:04:10,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:04:10,340 INFO L93 Difference]: Finished difference Result 117 states and 124 transitions.
[2021-11-13 18:04:10,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states.
[2021-11-13 18:04:10,343 INFO L78 Accepts]: Start accepts. Automaton has has 103 states, 103 states have (on average 1.0776699029126213) internal successors, (111), 103 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102
[2021-11-13 18:04:10,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:04:10,347 INFO L225 Difference]: With dead ends: 117
[2021-11-13 18:04:10,347 INFO L226 Difference]: Without dead ends: 110
[2021-11-13 18:04:10,352 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 197 SyntacticMatches, 1 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=5253, Invalid=5253, Unknown=0, NotChecked=0, Total=10506
[2021-11-13 18:04:10,353 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 0 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 57.80ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.43ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 75.80ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:04:10,353 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 74 Invalid, 117 Unknown, 0 Unchecked, 1.43ms Time], IncrementalHoareTripleChecker [7 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 75.80ms Time]
[2021-11-13 18:04:10,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states.
[2021-11-13 18:04:10,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110.
[2021-11-13 18:04:10,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 109 states have (on average 1.018348623853211) internal successors, (111), 109 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 18:04:10,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 111 transitions.
[2021-11-13 18:04:10,375 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 111 transitions. Word has length 102
[2021-11-13 18:04:10,378 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:04:10,378 INFO L470 AbstractCegarLoop]: Abstraction has 110 states and 111 transitions.
[2021-11-13 18:04:10,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 103 states, 103 states have (on average 1.0776699029126213) internal successors, (111), 103 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 18:04:10,379 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 111 transitions.
[2021-11-13 18:04:10,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109
[2021-11-13 18:04:10,385 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:04:10,385 INFO L514 BasicCegarLoop]: trace histogram [100, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 18:04:10,411 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0
[2021-11-13 18:04:10,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-13 18:04:10,595 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 18:04:10,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:04:10,596 INFO L85 PathProgramCache]: Analyzing trace with hash -648720242, now seen corresponding path program 6 times
[2021-11-13 18:04:10,596 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 18:04:10,596 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438933922]
[2021-11-13 18:04:10,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:04:10,596 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 18:04:10,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-11-13 18:04:10,710 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-11-13 18:04:10,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-11-13 18:04:10,878 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-11-13 18:04:10,880 INFO L628 BasicCegarLoop]: Counterexample is feasible
[2021-11-13 18:04:10,881 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2021-11-13 18:04:10,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2021-11-13 18:04:10,888 INFO L732 BasicCegarLoop]: Path program histogram: [6, 2, 1]
[2021-11-13 18:04:10,893 INFO L179 ceAbstractionStarter]: Computing trace abstraction results
[2021-11-13 18:04:11,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 06:04:11 BoogieIcfgContainer
[2021-11-13 18:04:11,086 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-11-13 18:04:11,086 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2021-11-13 18:04:11,086 INFO L271 PluginConnector]: Initializing Witness Printer...
[2021-11-13 18:04:11,087 INFO L275 PluginConnector]: Witness Printer initialized
[2021-11-13 18:04:11,087 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:03:52" (3/4) ...
[2021-11-13 18:04:11,091 INFO L140 WitnessPrinter]: No result that supports witness generation found
[2021-11-13 18:04:11,091 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2021-11-13 18:04:11,092 INFO L158 Benchmark]: Toolchain (without parser) took 19336.85ms. Allocated memory was 90.2MB in the beginning and 161.5MB in the end (delta: 71.3MB). Free memory was 53.9MB in the beginning and 131.6MB in the end (delta: -77.7MB). There was no memory consumed. Max. memory is 16.1GB.
[2021-11-13 18:04:11,092 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 90.2MB. Free memory is still 70.0MB. There was no memory consumed. Max. memory is 16.1GB.
[2021-11-13 18:04:11,093 INFO L158 Benchmark]: CACSL2BoogieTranslator took 381.50ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 53.7MB in the beginning and 85.6MB in the end (delta: -31.9MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB.
[2021-11-13 18:04:11,093 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.03ms. Allocated memory is still 109.1MB. Free memory was 85.6MB in the beginning and 84.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2021-11-13 18:04:11,093 INFO L158 Benchmark]: Boogie Preprocessor took 41.47ms. Allocated memory is still 109.1MB. Free memory was 84.0MB in the beginning and 83.0MB in the end (delta: 982.5kB). There was no memory consumed. Max. memory is 16.1GB.
[2021-11-13 18:04:11,094 INFO L158 Benchmark]: RCFGBuilder took 354.02ms. Allocated memory is still 109.1MB. Free memory was 83.0MB in the beginning and 74.0MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2021-11-13 18:04:11,094 INFO L158 Benchmark]: TraceAbstraction took 18501.81ms. Allocated memory was 109.1MB in the beginning and 161.5MB in the end (delta: 52.4MB). Free memory was 73.5MB in the beginning and 131.6MB in the end (delta: -58.1MB). Peak memory consumption was 85.4MB. Max. memory is 16.1GB.
[2021-11-13 18:04:11,095 INFO L158 Benchmark]: Witness Printer took 4.82ms. Allocated memory is still 161.5MB. Free memory is still 131.6MB. There was no memory consumed. Max. memory is 16.1GB.
[2021-11-13 18:04:11,097 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.39ms. Allocated memory is still 90.2MB. Free memory is still 70.0MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 381.50ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 53.7MB in the beginning and 85.6MB in the end (delta: -31.9MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 43.03ms. Allocated memory is still 109.1MB. Free memory was 85.6MB in the beginning and 84.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 41.47ms. Allocated memory is still 109.1MB. Free memory was 84.0MB in the beginning and 83.0MB in the end (delta: 982.5kB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 354.02ms. Allocated memory is still 109.1MB. Free memory was 83.0MB in the beginning and 74.0MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
* TraceAbstraction took 18501.81ms. Allocated memory was 109.1MB in the beginning and 161.5MB in the end (delta: 52.4MB). Free memory was 73.5MB in the beginning and 131.6MB in the end (delta: -58.1MB). Peak memory consumption was 85.4MB. Max. memory is 16.1GB.
* Witness Printer took 4.82ms. Allocated memory is still 161.5MB. Free memory is still 131.6MB. There was no memory consumed. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- UnprovableResult [Line: 41]: Unable to prove that call to reach_error is unreachable
Unable to prove that call to reach_error is unreachable
Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 28, overapproximation of someBinaryArithmeticDOUBLEoperation at line 19.
Possible FailurePath:
[L1] int __return_main;
VAL [__return_main=0]
[L9] double main__x0;
[L10] double main__x1;
[L11] double main__x2;
[L12] int main__i;
[L13] main__x0 = 5.5
[L14] main__x1 = 5.545454545454546
[L15] main__i = 0
VAL [__return_main=0, main__i=0, main__x0=11/2, main__x1=2772727272727273/500000000000000]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=1, main__x0=2772727272727273/500000000000000, main__x1=139, main__x2=139]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=2, main__x0=139, main__x1=113, main__x2=113]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=3, main__x0=113, main__x1=111, main__x2=111]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=4, main__x0=111, main__x1=106, main__x2=106]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=5, main__x0=106, main__x1=163, main__x2=163]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=6, main__x0=163, main__x1=194, main__x2=194]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=7, main__x0=194, main__x1=176, main__x2=176]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=8, main__x0=176, main__x1=150, main__x2=150]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=9, main__x0=150, main__x1=114, main__x2=114]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=10, main__x0=114, main__x1=131, main__x2=131]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=11, main__x0=131, main__x1=141, main__x2=141]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=12, main__x0=141, main__x1=157, main__x2=157]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=13, main__x0=157, main__x1=178, main__x2=178]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=14, main__x0=178, main__x1=105, main__x2=105]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=15, main__x0=105, main__x1=153, main__x2=153]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=16, main__x0=153, main__x1=152, main__x2=152]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=17, main__x0=152, main__x1=134, main__x2=134]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=18, main__x0=134, main__x1=132, main__x2=132]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=19, main__x0=132, main__x1=151, main__x2=151]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=20, main__x0=151, main__x1=136, main__x2=136]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=21, main__x0=136, main__x1=120, main__x2=120]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=22, main__x0=120, main__x1=124, main__x2=124]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=23, main__x0=124, main__x1=192, main__x2=192]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=24, main__x0=192, main__x1=140, main__x2=140]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=25, main__x0=140, main__x1=115, main__x2=115]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=26, main__x0=115, main__x1=104, main__x2=104]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=27, main__x0=104, main__x1=107, main__x2=107]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=28, main__x0=107, main__x1=191, main__x2=191]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=29, main__x0=191, main__x1=172, main__x2=172]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=30, main__x0=172, main__x1=142, main__x2=142]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=31, main__x0=142, main__x1=183, main__x2=183]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=32, main__x0=183, main__x1=167, main__x2=167]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=33, main__x0=167, main__x1=164, main__x2=164]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=34, main__x0=164, main__x1=135, main__x2=135]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=35, main__x0=135, main__x1=116, main__x2=116]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=36, main__x0=116, main__x1=181, main__x2=181]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=37, main__x0=181, main__x1=188, main__x2=188]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=38, main__x0=188, main__x1=193, main__x2=193]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=39, main__x0=193, main__x1=155, main__x2=155]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=40, main__x0=155, main__x1=112, main__x2=112]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=41, main__x0=112, main__x1=175, main__x2=175]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=42, main__x0=175, main__x1=158, main__x2=158]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=43, main__x0=158, main__x1=144, main__x2=144]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=44, main__x0=144, main__x1=195, main__x2=195]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=45, main__x0=195, main__x1=102, main__x2=102]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=46, main__x0=102, main__x1=156, main__x2=156]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=47, main__x0=156, main__x1=185, main__x2=185]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=48, main__x0=185, main__x1=121, main__x2=121]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=49, main__x0=121, main__x1=184, main__x2=184]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=50, main__x0=184, main__x1=119, main__x2=119]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=51, main__x0=119, main__x1=126, main__x2=126]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=52, main__x0=126, main__x1=177, main__x2=177]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=53, main__x0=177, main__x1=117, main__x2=117]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=54, main__x0=117, main__x1=161, main__x2=161]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=55, main__x0=161, main__x1=187, main__x2=187]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=56, main__x0=187, main__x1=169, main__x2=169]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=57, main__x0=169, main__x1=147, main__x2=147]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=58, main__x0=147, main__x1=148, main__x2=148]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=59, main__x0=148, main__x1=149, main__x2=149]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=60, main__x0=149, main__x1=166, main__x2=166]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=61, main__x0=166, main__x1=170, main__x2=170]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=62, main__x0=170, main__x1=180, main__x2=180]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=63, main__x0=180, main__x1=123, main__x2=123]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=64, main__x0=123, main__x1=186, main__x2=186]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=65, main__x0=186, main__x1=108, main__x2=108]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=66, main__x0=108, main__x1=189, main__x2=189]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=67, main__x0=189, main__x1=122, main__x2=122]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=68, main__x0=122, main__x1=179, main__x2=179]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=69, main__x0=179, main__x1=103, main__x2=103]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=70, main__x0=103, main__x1=190, main__x2=190]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=71, main__x0=190, main__x1=196, main__x2=196]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=72, main__x0=196, main__x1=165, main__x2=165]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=73, main__x0=165, main__x1=138, main__x2=138]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=74, main__x0=138, main__x1=143, main__x2=143]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=75, main__x0=143, main__x1=145, main__x2=145]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=76, main__x0=145, main__x1=129, main__x2=129]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=77, main__x0=129, main__x1=197, main__x2=197]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=78, main__x0=197, main__x1=198, main__x2=198]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=79, main__x0=198, main__x1=182, main__x2=182]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=80, main__x0=182, main__x1=171, main__x2=171]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=81, main__x0=171, main__x1=162, main__x2=162]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=82, main__x0=162, main__x1=130, main__x2=130]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=83, main__x0=130, main__x1=159, main__x2=159]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=84, main__x0=159, main__x1=160, main__x2=160]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=85, main__x0=160, main__x1=174, main__x2=174]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=86, main__x0=174, main__x1=127, main__x2=127]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=87, main__x0=127, main__x1=110, main__x2=110]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=88, main__x0=110, main__x1=109, main__x2=109]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=89, main__x0=109, main__x1=118, main__x2=118]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=90, main__x0=118, main__x1=128, main__x2=128]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=91, main__x0=128, main__x1=173, main__x2=173]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=92, main__x0=173, main__x1=137, main__x2=137]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=93, main__x0=137, main__x1=101, main__x2=101]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=94, main__x0=101, main__x1=146, main__x2=146]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=95, main__x0=146, main__x1=200, main__x2=200]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=96, main__x0=200, main__x1=154, main__x2=154]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=97, main__x0=154, main__x1=125, main__x2=125]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=98, main__x0=125, main__x1=133, main__x2=133]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=99, main__x0=133, main__x1=199, main__x2=199]
[L17] COND TRUE main__i < 100
[L19] main__x2 = 111.0 - ((1130.0 - (3000.0 / main__x0)) / main__x1)
[L20] main__x0 = main__x1
[L21] main__x1 = main__x2
[L22] main__i = main__i + 1
VAL [__return_main=0, main__i=100, main__x0=199, main__x1=168, main__x2=168]
[L17] COND FALSE !(main__i < 100)
[L27] int main____CPAchecker_TMP_0;
VAL [__return_main=0, main__i=100, main__x0=199, main__x1=168, main__x2=168]
[L28] COND FALSE !(main__x0 >= 99.0)
VAL [__return_main=0, main__i=100, main__x0=199, main__x1=168, main__x2=168]
[L53] main____CPAchecker_TMP_0 = 0
VAL [__return_main=0, main____CPAchecker_TMP_0=0, main__i=100, main__x0=199, main__x1=168, main__x2=168]
[L35] int __tmp_1;
[L36] __tmp_1 = main____CPAchecker_TMP_0
[L37] int __VERIFIER_assert__cond;
[L38] __VERIFIER_assert__cond = __tmp_1
VAL [__return_main=0, __tmp_1=0, __VERIFIER_assert__cond=0, main____CPAchecker_TMP_0=0, main__i=100, main__x0=199, main__x1=168, main__x2=168]
[L39] COND TRUE __VERIFIER_assert__cond == 0
VAL [__return_main=0, __tmp_1=0, __VERIFIER_assert__cond=0, main____CPAchecker_TMP_0=0, main__i=100, main__x0=199, main__x1=168, main__x2=168]
[L41] reach_error()
VAL [__return_main=0, __tmp_1=0, __VERIFIER_assert__cond=0, main____CPAchecker_TMP_0=0, main__i=100, main__x0=199, main__x1=168, main__x2=168]
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 18.2s, OverallIterations: 9, TraceHistogramMax: 100, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1 SdHoareTripleChecker+Valid, 420.69ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 340 SdHoareTripleChecker+Invalid, 309.38ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 254 mSDsCounter, 111 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 326 IncrementalHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 111 mSolverCounterUnsat, 86 mSDtfsCounter, 326 mSolverCounterSat, 23.94ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 641 GetRequests, 354 SyntacticMatches, 1 SemanticMatches, 286 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 535 ImplicationChecksByTransitivity, 10.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=110occurred in iteration=8, InterpolantAutomatonStates: 295, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 13.7s InterpolantComputationTime, 578 NumberOfCodeBlocks, 578 NumberOfCodeBlocksAsserted, 75 NumberOfCheckSat, 675 ConstructedInterpolants, 0 QuantifiedInterpolants, 1779 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1540 ConjunctsInSsa, 189 ConjunctsInUnsatCore, 20 InterpolantComputations, 2 PerfectInterpolantSequences, 10/17605 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
[2021-11-13 18:04:11,162 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/Muller_Kahan.c.p+cfa-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y --witnessprinter.witness.filename witness.graphml --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 0209c9293388eb915387172d6fa3be69dfb35a1de5258b69ac610130c33e2610
--- Real Ultimate output ---
This is Ultimate 0.2.1-dev-63182f1
[2021-11-13 18:04:13,726 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-11-13 18:04:13,728 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-11-13 18:04:13,762 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-11-13 18:04:13,763 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-11-13 18:04:13,764 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-11-13 18:04:13,766 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-11-13 18:04:13,769 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-11-13 18:04:13,772 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-11-13 18:04:13,773 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-11-13 18:04:13,775 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-11-13 18:04:13,776 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-11-13 18:04:13,777 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-11-13 18:04:13,778 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-11-13 18:04:13,780 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-11-13 18:04:13,782 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-11-13 18:04:13,783 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-11-13 18:04:13,785 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-11-13 18:04:13,787 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-11-13 18:04:13,790 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-11-13 18:04:13,792 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-11-13 18:04:13,794 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-11-13 18:04:13,796 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-11-13 18:04:13,797 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-11-13 18:04:13,802 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-11-13 18:04:13,802 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-11-13 18:04:13,803 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-11-13 18:04:13,804 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-11-13 18:04:13,805 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-11-13 18:04:13,806 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-11-13 18:04:13,807 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-11-13 18:04:13,808 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-11-13 18:04:13,809 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-11-13 18:04:13,810 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2021-11-13 18:04:13,812 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-11-13 18:04:13,812 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2021-11-13 18:04:13,813 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-11-13 18:04:13,813 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-11-13 18:04:13,814 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2021-11-13 18:04:13,815 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2021-11-13 18:04:13,816 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-11-13 18:04:13,817 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2021-11-13 18:04:13,848 INFO L113 SettingsManager]: Loading preferences was successful
[2021-11-13 18:04:13,849 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-11-13 18:04:13,849 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-11-13 18:04:13,850 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-11-13 18:04:13,850 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2021-11-13 18:04:13,851 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2021-11-13 18:04:13,851 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-11-13 18:04:13,852 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2021-11-13 18:04:13,852 INFO L138 SettingsManager]: * Use SBE=true
[2021-11-13 18:04:13,852 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-11-13 18:04:13,853 INFO L138 SettingsManager]: * sizeof long=4
[2021-11-13 18:04:13,853 INFO L138 SettingsManager]: * sizeof POINTER=4
[2021-11-13 18:04:13,853 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-11-13 18:04:13,853 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2021-11-13 18:04:13,854 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-11-13 18:04:13,854 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2021-11-13 18:04:13,854 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true
[2021-11-13 18:04:13,854 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2021-11-13 18:04:13,855 INFO L138 SettingsManager]: * sizeof long double=12
[2021-11-13 18:04:13,855 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2021-11-13 18:04:13,855 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-11-13 18:04:13,856 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2021-11-13 18:04:13,856 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-11-13 18:04:13,856 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-11-13 18:04:13,856 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2021-11-13 18:04:13,857 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-13 18:04:13,857 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-11-13 18:04:13,857 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2021-11-13 18:04:13,858 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-11-13 18:04:13,858 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF
[2021-11-13 18:04:13,858 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2021-11-13 18:04:13,858 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF
[2021-11-13 18:04:13,859 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2021-11-13 18:04:13,859 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-11-13 18:04:13,859 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2021-11-13 18:04:13,860 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2021-11-13 18:04:13,860 INFO L138 SettingsManager]: * Logic for external solver=AUFBV
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_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0209c9293388eb915387172d6fa3be69dfb35a1de5258b69ac610130c33e2610
[2021-11-13 18:04:14,283 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-11-13 18:04:14,317 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-11-13 18:04:14,320 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-11-13 18:04:14,321 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-11-13 18:04:14,321 INFO L275 PluginConnector]: CDTParser initialized
[2021-11-13 18:04:14,323 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/float-benchs/Muller_Kahan.c.p+cfa-reducer.c
[2021-11-13 18:04:14,395 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/data/16430e749/10fe71d615ba4322a15c6d0d125a18b8/FLAG40c9f2cfc
[2021-11-13 18:04:14,913 INFO L306 CDTParser]: Found 1 translation units.
[2021-11-13 18:04:14,914 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/sv-benchmarks/c/float-benchs/Muller_Kahan.c.p+cfa-reducer.c
[2021-11-13 18:04:14,922 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/data/16430e749/10fe71d615ba4322a15c6d0d125a18b8/FLAG40c9f2cfc
[2021-11-13 18:04:15,280 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/data/16430e749/10fe71d615ba4322a15c6d0d125a18b8
[2021-11-13 18:04:15,285 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-11-13 18:04:15,287 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2021-11-13 18:04:15,290 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-11-13 18:04:15,291 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-11-13 18:04:15,295 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-11-13 18:04:15,295 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:04:15" (1/1) ...
[2021-11-13 18:04:15,297 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a1450ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:04:15, skipping insertion in model container
[2021-11-13 18:04:15,298 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:04:15" (1/1) ...
[2021-11-13 18:04:15,306 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-11-13 18:04:15,327 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-11-13 18:04:15,539 WARN L228 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_ca2afd79-7771-4864-be17-0fbc81f70d36/sv-benchmarks/c/float-benchs/Muller_Kahan.c.p+cfa-reducer.c[964,977]
[2021-11-13 18:04:15,549 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-11-13 18:04:15,565 INFO L203 MainTranslator]: Completed pre-run
[2021-11-13 18:04:15,647 WARN L228 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_ca2afd79-7771-4864-be17-0fbc81f70d36/sv-benchmarks/c/float-benchs/Muller_Kahan.c.p+cfa-reducer.c[964,977]
[2021-11-13 18:04:15,649 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-11-13 18:04:15,664 INFO L208 MainTranslator]: Completed translation
[2021-11-13 18:04:15,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:04:15 WrapperNode
[2021-11-13 18:04:15,665 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-11-13 18:04:15,666 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-11-13 18:04:15,666 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-11-13 18:04:15,666 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2021-11-13 18:04:15,674 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:04:15" (1/1) ...
[2021-11-13 18:04:15,684 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:04:15" (1/1) ...
[2021-11-13 18:04:15,704 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-11-13 18:04:15,705 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-11-13 18:04:15,705 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-11-13 18:04:15,705 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-11-13 18:04:15,714 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:04:15" (1/1) ...
[2021-11-13 18:04:15,715 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:04:15" (1/1) ...
[2021-11-13 18:04:15,718 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:04:15" (1/1) ...
[2021-11-13 18:04:15,718 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:04:15" (1/1) ...
[2021-11-13 18:04:15,726 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:04:15" (1/1) ...
[2021-11-13 18:04:15,728 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:04:15" (1/1) ...
[2021-11-13 18:04:15,730 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:04:15" (1/1) ...
[2021-11-13 18:04:15,733 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-11-13 18:04:15,734 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-11-13 18:04:15,735 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-11-13 18:04:15,735 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-11-13 18:04:15,736 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:04:15" (1/1) ...
[2021-11-13 18:04:15,744 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-13 18:04:15,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 18:04:15,782 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2021-11-13 18:04:15,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2021-11-13 18:04:15,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-11-13 18:04:15,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-11-13 18:04:15,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2021-11-13 18:04:15,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-11-13 18:04:18,656 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-11-13 18:04:18,657 INFO L299 CfgBuilder]: Removed 0 assume(true) statements.
[2021-11-13 18:04:18,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:04:18 BoogieIcfgContainer
[2021-11-13 18:04:18,659 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-11-13 18:04:18,661 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-11-13 18:04:18,662 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2021-11-13 18:04:18,665 INFO L275 PluginConnector]: TraceAbstraction initialized
[2021-11-13 18:04:18,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 06:04:15" (1/3) ...
[2021-11-13 18:04:18,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b59bb0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:04:18, skipping insertion in model container
[2021-11-13 18:04:18,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:04:15" (2/3) ...
[2021-11-13 18:04:18,667 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b59bb0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:04:18, skipping insertion in model container
[2021-11-13 18:04:18,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:04:18" (3/3) ...
[2021-11-13 18:04:18,669 INFO L111 eAbstractionObserver]: Analyzing ICFG Muller_Kahan.c.p+cfa-reducer.c
[2021-11-13 18:04:18,676 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-11-13 18:04:18,676 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2021-11-13 18:04:18,752 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-11-13 18:04:18,760 INFO L339 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=LoopsAndPotentialCycles, 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, mLoopAccelerationTechnique=FAST_UPR
[2021-11-13 18:04:18,761 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2021-11-13 18:04:18,776 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 18:04:18,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2021-11-13 18:04:18,783 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:04:18,784 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 18:04:18,785 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 18:04:18,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:04:18,792 INFO L85 PathProgramCache]: Analyzing trace with hash 207177897, now seen corresponding path program 1 times
[2021-11-13 18:04:18,805 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:04:18,806 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1868236153]
[2021-11-13 18:04:18,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:04:18,807 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:04:18,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:04:18,827 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:04:18,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2021-11-13 18:04:18,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:04:18,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 2 conjunts are in the unsatisfiable core
[2021-11-13 18:04:18,971 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:04:19,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:04:19,180 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:04:19,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:04:19,331 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:04:19,332 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1868236153]
[2021-11-13 18:04:19,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1868236153] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:04:19,332 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:04:19,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4
[2021-11-13 18:04:19,334 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686458658]
[2021-11-13 18:04:19,335 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:04:19,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-11-13 18:04:19,340 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:04:19,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-11-13 18:04:19,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2021-11-13 18:04:19,383 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 18:04:22,670 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.27s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2021-11-13 18:04:23,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:04:23,091 INFO L93 Difference]: Finished difference Result 24 states and 30 transitions.
[2021-11-13 18:04:23,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-11-13 18:04:23,095 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8
[2021-11-13 18:04:23,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:04:23,105 INFO L225 Difference]: With dead ends: 24
[2021-11-13 18:04:23,106 INFO L226 Difference]: Without dead ends: 11
[2021-11-13 18:04:23,109 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2021-11-13 18:04:23,115 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3291.23ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.11ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3686.46ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:04:23,117 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 38 Invalid, 3 Unknown, 0 Unchecked, 1.11ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 3686.46ms Time]
[2021-11-13 18:04:23,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states.
[2021-11-13 18:04:23,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11.
[2021-11-13 18:04:23,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 18:04:23,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions.
[2021-11-13 18:04:23,156 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 8
[2021-11-13 18:04:23,157 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:04:23,157 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions.
[2021-11-13 18:04:23,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 18:04:23,158 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions.
[2021-11-13 18:04:23,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2021-11-13 18:04:23,158 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:04:23,159 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 18:04:23,174 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0
[2021-11-13 18:04:23,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:04:23,374 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 18:04:23,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:04:23,376 INFO L85 PathProgramCache]: Analyzing trace with hash 263819657, now seen corresponding path program 1 times
[2021-11-13 18:04:23,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:04:23,377 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1854140240]
[2021-11-13 18:04:23,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:04:23,377 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:04:23,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:04:23,383 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:04:23,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2021-11-13 18:04:25,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:04:25,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 3 conjunts are in the unsatisfiable core
[2021-11-13 18:04:25,534 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:04:25,754 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:04:25,755 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:04:26,044 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:04:26,045 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:04:26,045 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1854140240]
[2021-11-13 18:04:26,046 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1854140240] provided 0 perfect and 2 imperfect interpolant sequences
[2021-11-13 18:04:26,046 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2021-11-13 18:04:26,046 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6
[2021-11-13 18:04:26,047 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123132898]
[2021-11-13 18:04:26,047 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2021-11-13 18:04:26,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2021-11-13 18:04:26,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:04:26,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-11-13 18:04:26,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2021-11-13 18:04:26,051 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 18:04:29,249 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2021-11-13 18:04:31,262 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2021-11-13 18:04:31,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:04:31,693 INFO L93 Difference]: Finished difference Result 20 states and 25 transitions.
[2021-11-13 18:04:31,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-11-13 18:04:31,694 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9
[2021-11-13 18:04:31,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:04:31,695 INFO L225 Difference]: With dead ends: 20
[2021-11-13 18:04:31,696 INFO L226 Difference]: Without dead ends: 13
[2021-11-13 18:04:31,697 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2021-11-13 18:04:31,699 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5226.70ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.18ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5631.77ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:04:31,700 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 38 Invalid, 7 Unknown, 0 Unchecked, 1.18ms Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 2 Unknown, 0 Unchecked, 5631.77ms Time]
[2021-11-13 18:04:31,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states.
[2021-11-13 18:04:31,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13.
[2021-11-13 18:04:31,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 18:04:31,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions.
[2021-11-13 18:04:31,708 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 9
[2021-11-13 18:04:31,708 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:04:31,709 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions.
[2021-11-13 18:04:31,709 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 18:04:31,709 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions.
[2021-11-13 18:04:31,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2021-11-13 18:04:31,710 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:04:31,711 INFO L514 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 18:04:31,751 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0
[2021-11-13 18:04:31,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:04:31,931 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 18:04:31,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:04:31,932 INFO L85 PathProgramCache]: Analyzing trace with hash 617870729, now seen corresponding path program 2 times
[2021-11-13 18:04:31,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:04:31,933 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [466180025]
[2021-11-13 18:04:31,933 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2021-11-13 18:04:31,934 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:04:31,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:04:31,946 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:04:31,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process
[2021-11-13 18:04:32,025 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s)
[2021-11-13 18:04:32,026 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-11-13 18:04:32,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 4 conjunts are in the unsatisfiable core
[2021-11-13 18:04:32,029 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:04:32,228 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2021-11-13 18:04:32,229 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:04:32,475 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2021-11-13 18:04:32,476 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:04:32,476 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [466180025]
[2021-11-13 18:04:32,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [466180025] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:04:32,477 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:04:32,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6
[2021-11-13 18:04:32,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840235143]
[2021-11-13 18:04:32,478 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:04:32,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2021-11-13 18:04:32,478 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:04:32,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-11-13 18:04:32,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2021-11-13 18:04:32,480 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 18:04:32,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:04:32,753 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions.
[2021-11-13 18:04:32,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2021-11-13 18:04:32,754 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11
[2021-11-13 18:04:32,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:04:32,755 INFO L225 Difference]: With dead ends: 17
[2021-11-13 18:04:32,755 INFO L226 Difference]: Without dead ends: 13
[2021-11-13 18:04:32,756 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2021-11-13 18:04:32,758 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 1 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 182.72ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.13ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 188.24ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:04:32,759 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 43 Invalid, 15 Unknown, 0 Unchecked, 1.13ms Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 188.24ms Time]
[2021-11-13 18:04:32,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states.
[2021-11-13 18:04:32,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13.
[2021-11-13 18:04:32,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 18:04:32,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions.
[2021-11-13 18:04:32,765 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 11
[2021-11-13 18:04:32,765 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:04:32,765 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions.
[2021-11-13 18:04:32,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 18:04:32,766 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions.
[2021-11-13 18:04:32,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2021-11-13 18:04:32,767 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:04:32,767 INFO L514 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 18:04:32,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0
[2021-11-13 18:04:32,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:04:32,983 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 18:04:32,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:04:32,984 INFO L85 PathProgramCache]: Analyzing trace with hash 634881390, now seen corresponding path program 1 times
[2021-11-13 18:04:32,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:04:32,985 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1031460834]
[2021-11-13 18:04:32,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:04:32,986 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:04:32,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:04:32,987 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:04:33,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process
[2021-11-13 18:04:38,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:04:38,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 5 conjunts are in the unsatisfiable core
[2021-11-13 18:04:38,982 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:04:39,491 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:04:39,492 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:04:40,174 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:04:40,175 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:04:40,175 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1031460834]
[2021-11-13 18:04:40,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1031460834] provided 0 perfect and 2 imperfect interpolant sequences
[2021-11-13 18:04:40,175 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2021-11-13 18:04:40,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10
[2021-11-13 18:04:40,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317594642]
[2021-11-13 18:04:40,176 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2021-11-13 18:04:40,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2021-11-13 18:04:40,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:04:40,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2021-11-13 18:04:40,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90
[2021-11-13 18:04:40,179 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand has 10 states, 10 states have (on average 1.6) internal successors, (16), 10 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 18:04:43,583 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.36s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2021-11-13 18:04:45,605 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2021-11-13 18:04:47,634 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2021-11-13 18:04:49,652 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2021-11-13 18:04:50,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:04:50,533 INFO L93 Difference]: Finished difference Result 24 states and 29 transitions.
[2021-11-13 18:04:50,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2021-11-13 18:04:50,535 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.6) internal successors, (16), 10 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11
[2021-11-13 18:04:50,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:04:50,536 INFO L225 Difference]: With dead ends: 24
[2021-11-13 18:04:50,536 INFO L226 Difference]: Without dead ends: 17
[2021-11-13 18:04:50,537 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=51, Invalid=81, Unknown=0, NotChecked=0, Total=132
[2021-11-13 18:04:50,539 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 0 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9497.74ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.09ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9526.47ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:04:50,539 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 58 Invalid, 16 Unknown, 0 Unchecked, 1.09ms Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 4 Unknown, 0 Unchecked, 9526.47ms Time]
[2021-11-13 18:04:50,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states.
[2021-11-13 18:04:50,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17.
[2021-11-13 18:04:50,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.125) internal successors, (18), 16 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 18:04:50,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions.
[2021-11-13 18:04:50,546 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 11
[2021-11-13 18:04:50,546 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:04:50,547 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions.
[2021-11-13 18:04:50,547 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.6) internal successors, (16), 10 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 18:04:50,547 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions.
[2021-11-13 18:04:50,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2021-11-13 18:04:50,548 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:04:50,548 INFO L514 BasicCegarLoop]: trace histogram [7, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 18:04:50,629 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0
[2021-11-13 18:04:50,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:04:50,765 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 18:04:50,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:04:50,768 INFO L85 PathProgramCache]: Analyzing trace with hash -684634770, now seen corresponding path program 2 times
[2021-11-13 18:04:50,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:04:50,768 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1066829205]
[2021-11-13 18:04:50,769 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2021-11-13 18:04:50,769 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:04:50,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:04:50,770 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:04:50,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process
[2021-11-13 18:05:03,805 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2021-11-13 18:05:03,805 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-11-13 18:05:04,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 9 conjunts are in the unsatisfiable core
[2021-11-13 18:05:04,435 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:05:05,572 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:05:05,572 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:05:07,575 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:05:07,576 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:05:07,576 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1066829205]
[2021-11-13 18:05:07,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1066829205] provided 0 perfect and 2 imperfect interpolant sequences
[2021-11-13 18:05:07,576 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2021-11-13 18:05:07,576 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18
[2021-11-13 18:05:07,577 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78102627]
[2021-11-13 18:05:07,577 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2021-11-13 18:05:07,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states
[2021-11-13 18:05:07,577 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:05:07,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants.
[2021-11-13 18:05:07,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306
[2021-11-13 18:05:07,579 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand has 18 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 18 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 18:05:11,031 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.36s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2021-11-13 18:05:13,037 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2021-11-13 18:05:15,045 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2021-11-13 18:05:17,075 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2021-11-13 18:05:19,084 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2021-11-13 18:05:21,095 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2021-11-13 18:05:23,123 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2021-11-13 18:05:25,128 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2021-11-13 18:05:27,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:05:27,563 INFO L93 Difference]: Finished difference Result 32 states and 41 transitions.
[2021-11-13 18:05:27,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states.
[2021-11-13 18:05:27,564 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 18 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15
[2021-11-13 18:05:27,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:05:27,565 INFO L225 Difference]: With dead ends: 32
[2021-11-13 18:05:27,566 INFO L226 Difference]: Without dead ends: 25
[2021-11-13 18:05:27,566 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=199, Invalid=353, Unknown=0, NotChecked=0, Total=552
[2021-11-13 18:05:27,568 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 0 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 7 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17625.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.52ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17660.80ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:05:27,568 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 82 Invalid, 31 Unknown, 0 Unchecked, 1.52ms Time], IncrementalHoareTripleChecker [7 Valid, 16 Invalid, 8 Unknown, 0 Unchecked, 17660.80ms Time]
[2021-11-13 18:05:27,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states.
[2021-11-13 18:05:27,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25.
[2021-11-13 18:05:27,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.0833333333333333) internal successors, (26), 24 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 18:05:27,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions.
[2021-11-13 18:05:27,576 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 15
[2021-11-13 18:05:27,577 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:05:27,577 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions.
[2021-11-13 18:05:27,577 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 18 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 18:05:27,578 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions.
[2021-11-13 18:05:27,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2021-11-13 18:05:27,579 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:05:27,579 INFO L514 BasicCegarLoop]: trace histogram [15, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 18:05:27,776 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0
[2021-11-13 18:05:27,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:05:27,803 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 18:05:27,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:05:27,804 INFO L85 PathProgramCache]: Analyzing trace with hash -176628370, now seen corresponding path program 3 times
[2021-11-13 18:05:27,805 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:05:27,805 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1139797258]
[2021-11-13 18:05:27,805 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2021-11-13 18:05:27,805 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:05:27,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:05:27,806 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:05:27,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2afd79-7771-4864-be17-0fbc81f70d36/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process