./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/gcd_3+newton_3_4.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version b5237d83
Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/gcd_3+newton_3_4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/bin/uautomizer-vX5HgA9Q3a --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 cdcc8697c8b9bd3a25c95b335058fb611b45ef6a0bd08057dccc283c9b370e3d
--- Real Ultimate output ---
[0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset.
This is Ultimate 0.2.2-dev-b5237d8
[2022-11-21 09:11:13,086 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-11-21 09:11:13,088 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-11-21 09:11:13,127 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-11-21 09:11:13,127 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-11-21 09:11:13,138 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-11-21 09:11:13,139 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-11-21 09:11:13,141 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2022-11-21 09:11:13,142 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-11-21 09:11:13,143 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-11-21 09:11:13,144 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-11-21 09:11:13,145 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-11-21 09:11:13,146 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-11-21 09:11:13,147 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-11-21 09:11:13,148 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-11-21 09:11:13,149 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-11-21 09:11:13,150 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-11-21 09:11:13,151 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-11-21 09:11:13,159 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-11-21 09:11:13,164 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-11-21 09:11:13,166 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-11-21 09:11:13,171 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-11-21 09:11:13,172 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-11-21 09:11:13,173 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-11-21 09:11:13,176 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-11-21 09:11:13,177 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-11-21 09:11:13,177 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-11-21 09:11:13,178 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-11-21 09:11:13,179 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-11-21 09:11:13,190 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-11-21 09:11:13,191 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-11-21 09:11:13,191 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-11-21 09:11:13,192 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-11-21 09:11:13,193 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2022-11-21 09:11:13,194 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-11-21 09:11:13,194 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2022-11-21 09:11:13,195 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-11-21 09:11:13,195 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-11-21 09:11:13,196 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2022-11-21 09:11:13,197 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2022-11-21 09:11:13,197 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-11-21 09:11:13,202 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf
[2022-11-21 09:11:13,233 INFO L113 SettingsManager]: Loading preferences was successful
[2022-11-21 09:11:13,233 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-11-21 09:11:13,234 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-11-21 09:11:13,234 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-11-21 09:11:13,235 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-11-21 09:11:13,235 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-11-21 09:11:13,236 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-11-21 09:11:13,236 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2022-11-21 09:11:13,236 INFO L138 SettingsManager]: * Use SBE=true
[2022-11-21 09:11:13,236 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-11-21 09:11:13,237 INFO L138 SettingsManager]: * sizeof long=4
[2022-11-21 09:11:13,237 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-11-21 09:11:13,237 INFO L138 SettingsManager]: * sizeof POINTER=4
[2022-11-21 09:11:13,237 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-11-21 09:11:13,238 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-11-21 09:11:13,238 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-11-21 09:11:13,238 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-11-21 09:11:13,238 INFO L138 SettingsManager]: * sizeof long double=12
[2022-11-21 09:11:13,239 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-11-21 09:11:13,239 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-11-21 09:11:13,239 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-11-21 09:11:13,239 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-11-21 09:11:13,240 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-11-21 09:11:13,240 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-11-21 09:11:13,240 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-21 09:11:13,240 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-11-21 09:11:13,241 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2022-11-21 09:11:13,241 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-11-21 09:11:13,241 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2022-11-21 09:11:13,241 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-11-21 09:11:13,242 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2022-11-21 09:11:13,242 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2022-11-21 09:11:13,242 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-11-21 09:11:13,242 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_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/bin/uautomizer-vX5HgA9Q3a/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/bin/uautomizer-vX5HgA9Q3a
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cdcc8697c8b9bd3a25c95b335058fb611b45ef6a0bd08057dccc283c9b370e3d
[2022-11-21 09:11:13,505 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-11-21 09:11:13,548 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-11-21 09:11:13,551 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-11-21 09:11:13,552 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-11-21 09:11:13,553 INFO L275 PluginConnector]: CDTParser initialized
[2022-11-21 09:11:13,554 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/combinations/gcd_3+newton_3_4.i
[2022-11-21 09:11:16,889 INFO L500 CDTParser]: Created temporary CDT project at NULL
[2022-11-21 09:11:17,105 INFO L351 CDTParser]: Found 1 translation units.
[2022-11-21 09:11:17,106 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/sv-benchmarks/c/combinations/gcd_3+newton_3_4.i
[2022-11-21 09:11:17,114 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/bin/uautomizer-vX5HgA9Q3a/data/a49934d73/ca4bb28900964203bb2800a0d4479a5b/FLAG412350a19
[2022-11-21 09:11:17,132 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/bin/uautomizer-vX5HgA9Q3a/data/a49934d73/ca4bb28900964203bb2800a0d4479a5b
[2022-11-21 09:11:17,136 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-11-21 09:11:17,138 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2022-11-21 09:11:17,139 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-11-21 09:11:17,140 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-11-21 09:11:17,148 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-11-21 09:11:17,150 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:11:17" (1/1) ...
[2022-11-21 09:11:17,152 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2eec65dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:11:17, skipping insertion in model container
[2022-11-21 09:11:17,152 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:11:17" (1/1) ...
[2022-11-21 09:11:17,161 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-11-21 09:11:17,188 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-11-21 09:11:17,366 WARN L237 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_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/sv-benchmarks/c/combinations/gcd_3+newton_3_4.i[1226,1239]
[2022-11-21 09:11:17,396 WARN L237 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_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/sv-benchmarks/c/combinations/gcd_3+newton_3_4.i[2862,2875]
[2022-11-21 09:11:17,401 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-21 09:11:17,418 INFO L203 MainTranslator]: Completed pre-run
[2022-11-21 09:11:17,432 WARN L237 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_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/sv-benchmarks/c/combinations/gcd_3+newton_3_4.i[1226,1239]
[2022-11-21 09:11:17,449 WARN L237 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_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/sv-benchmarks/c/combinations/gcd_3+newton_3_4.i[2862,2875]
[2022-11-21 09:11:17,461 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-21 09:11:17,478 INFO L208 MainTranslator]: Completed translation
[2022-11-21 09:11:17,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:11:17 WrapperNode
[2022-11-21 09:11:17,479 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-11-21 09:11:17,480 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-11-21 09:11:17,480 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-11-21 09:11:17,480 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2022-11-21 09:11:17,488 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:11:17" (1/1) ...
[2022-11-21 09:11:17,495 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:11:17" (1/1) ...
[2022-11-21 09:11:17,523 INFO L138 Inliner]: procedures = 27, calls = 26, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 90
[2022-11-21 09:11:17,523 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-11-21 09:11:17,524 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-11-21 09:11:17,524 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-11-21 09:11:17,524 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-11-21 09:11:17,536 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:11:17" (1/1) ...
[2022-11-21 09:11:17,541 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:11:17" (1/1) ...
[2022-11-21 09:11:17,545 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:11:17" (1/1) ...
[2022-11-21 09:11:17,547 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:11:17" (1/1) ...
[2022-11-21 09:11:17,556 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:11:17" (1/1) ...
[2022-11-21 09:11:17,561 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:11:17" (1/1) ...
[2022-11-21 09:11:17,563 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:11:17" (1/1) ...
[2022-11-21 09:11:17,564 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:11:17" (1/1) ...
[2022-11-21 09:11:17,566 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-11-21 09:11:17,567 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-11-21 09:11:17,568 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-11-21 09:11:17,568 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-11-21 09:11:17,569 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:11:17" (1/1) ...
[2022-11-21 09:11:17,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-21 09:11:17,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/bin/uautomizer-vX5HgA9Q3a/z3
[2022-11-21 09:11:17,605 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-11-21 09:11:17,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-11-21 09:11:17,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-11-21 09:11:17,648 INFO L130 BoogieDeclarations]: Found specification of procedure fp
[2022-11-21 09:11:17,649 INFO L138 BoogieDeclarations]: Found implementation of procedure fp
[2022-11-21 09:11:17,649 INFO L130 BoogieDeclarations]: Found specification of procedure f
[2022-11-21 09:11:17,649 INFO L138 BoogieDeclarations]: Found implementation of procedure f
[2022-11-21 09:11:17,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2022-11-21 09:11:17,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-11-21 09:11:17,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-11-21 09:11:17,733 INFO L235 CfgBuilder]: Building ICFG
[2022-11-21 09:11:17,735 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-11-21 09:11:18,015 INFO L276 CfgBuilder]: Performing block encoding
[2022-11-21 09:11:18,023 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-11-21 09:11:18,036 INFO L300 CfgBuilder]: Removed 1 assume(true) statements.
[2022-11-21 09:11:18,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:11:18 BoogieIcfgContainer
[2022-11-21 09:11:18,038 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-11-21 09:11:18,042 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-11-21 09:11:18,042 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-11-21 09:11:18,046 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-11-21 09:11:18,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 09:11:17" (1/3) ...
[2022-11-21 09:11:18,061 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65f3e54a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:11:18, skipping insertion in model container
[2022-11-21 09:11:18,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:11:17" (2/3) ...
[2022-11-21 09:11:18,062 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65f3e54a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:11:18, skipping insertion in model container
[2022-11-21 09:11:18,062 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:11:18" (3/3) ...
[2022-11-21 09:11:18,064 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_3+newton_3_4.i
[2022-11-21 09:11:18,110 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-11-21 09:11:18,113 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2022-11-21 09:11:18,203 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-11-21 09:11:18,212 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@bd75a12, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2022-11-21 09:11:18,212 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2022-11-21 09:11:18,217 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 31 states have internal predecessors, (40), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2022-11-21 09:11:18,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2022-11-21 09:11:18,231 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-21 09:11:18,233 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-21 09:11:18,233 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-21 09:11:18,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-21 09:11:18,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1709385323, now seen corresponding path program 1 times
[2022-11-21 09:11:18,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-21 09:11:18,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030297105]
[2022-11-21 09:11:18,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-21 09:11:18,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-21 09:11:18,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-21 09:11:18,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-21 09:11:18,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-21 09:11:18,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030297105]
[2022-11-21 09:11:18,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030297105] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-21 09:11:18,628 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-21 09:11:18,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2022-11-21 09:11:18,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112892849]
[2022-11-21 09:11:18,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-21 09:11:18,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-11-21 09:11:18,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-21 09:11:18,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-11-21 09:11:18,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-11-21 09:11:18,675 INFO L87 Difference]: Start difference. First operand has 40 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 31 states have internal predecessors, (40), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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)
[2022-11-21 09:11:18,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-21 09:11:18,747 INFO L93 Difference]: Finished difference Result 96 states and 120 transitions.
[2022-11-21 09:11:18,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2022-11-21 09:11:18,754 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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
[2022-11-21 09:11:18,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-21 09:11:18,763 INFO L225 Difference]: With dead ends: 96
[2022-11-21 09:11:18,764 INFO L226 Difference]: Without dead ends: 39
[2022-11-21 09:11:18,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-11-21 09:11:18,774 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 23 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-11-21 09:11:18,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 134 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-11-21 09:11:18,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states.
[2022-11-21 09:11:18,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 32.
[2022-11-21 09:11:18,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 23 states have internal predecessors, (25), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2022-11-21 09:11:18,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 37 transitions.
[2022-11-21 09:11:18,823 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 37 transitions. Word has length 11
[2022-11-21 09:11:18,823 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-21 09:11:18,823 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 37 transitions.
[2022-11-21 09:11:18,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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)
[2022-11-21 09:11:18,824 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 37 transitions.
[2022-11-21 09:11:18,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2022-11-21 09:11:18,826 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-21 09:11:18,826 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-21 09:11:18,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-11-21 09:11:18,826 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-21 09:11:18,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-21 09:11:18,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1776235347, now seen corresponding path program 1 times
[2022-11-21 09:11:18,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-21 09:11:18,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697881152]
[2022-11-21 09:11:18,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-21 09:11:18,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-21 09:11:18,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-21 09:11:19,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-21 09:11:19,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-21 09:11:19,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697881152]
[2022-11-21 09:11:19,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697881152] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-21 09:11:19,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-21 09:11:19,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-11-21 09:11:19,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660335362]
[2022-11-21 09:11:19,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-21 09:11:19,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2022-11-21 09:11:19,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-21 09:11:19,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2022-11-21 09:11:19,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2022-11-21 09:11:19,147 INFO L87 Difference]: Start difference. First operand 32 states and 37 transitions. Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 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)
[2022-11-21 09:11:19,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-21 09:11:19,261 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions.
[2022-11-21 09:11:19,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2022-11-21 09:11:19,262 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 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
[2022-11-21 09:11:19,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-21 09:11:19,263 INFO L225 Difference]: With dead ends: 39
[2022-11-21 09:11:19,263 INFO L226 Difference]: Without dead ends: 33
[2022-11-21 09:11:19,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72
[2022-11-21 09:11:19,265 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 7 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-11-21 09:11:19,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 155 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-11-21 09:11:19,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states.
[2022-11-21 09:11:19,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33.
[2022-11-21 09:11:19,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 24 states have internal predecessors, (26), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2022-11-21 09:11:19,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions.
[2022-11-21 09:11:19,283 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 11
[2022-11-21 09:11:19,283 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-21 09:11:19,283 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions.
[2022-11-21 09:11:19,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 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)
[2022-11-21 09:11:19,284 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions.
[2022-11-21 09:11:19,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2022-11-21 09:11:19,285 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-21 09:11:19,285 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-21 09:11:19,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-11-21 09:11:19,286 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-21 09:11:19,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-21 09:11:19,287 INFO L85 PathProgramCache]: Analyzing trace with hash 830014046, now seen corresponding path program 1 times
[2022-11-21 09:11:19,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-21 09:11:19,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087139170]
[2022-11-21 09:11:19,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-21 09:11:19,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-21 09:11:19,310 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-11-21 09:11:19,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1440311042]
[2022-11-21 09:11:19,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-21 09:11:19,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-21 09:11:19,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/bin/uautomizer-vX5HgA9Q3a/z3
[2022-11-21 09:11:19,315 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-11-21 09:11:19,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2022-11-21 09:11:19,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-21 09:11:19,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 25 conjunts are in the unsatisfiable core
[2022-11-21 09:11:19,437 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-21 09:11:28,967 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 139
[2022-11-21 09:11:28,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-21 09:11:28,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087139170]
[2022-11-21 09:11:28,968 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2022-11-21 09:11:28,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1440311042]
[2022-11-21 09:11:28,969 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception
[2022-11-21 09:11:28,976 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2022-11-21 09:11:29,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-21 09:11:29,170 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver:
de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. No stderr output.
at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243)
at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:262)
at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155)
at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163)
at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163)
at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163)
at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:61)
at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.getRedundancy(SimplifyDDA.java:620)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getRedundancy(SimplifyDDAWithTimeout.java:120)
at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:370)
at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115)
at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106)
at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:649)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:180)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:198)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:165)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:361)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:306)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:582)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:199)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:299)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.<init>(TraceCheckSpWp.java:163)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.<init>(AutomatonFreeRefinementEngine.java:85)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.<init>(TraceAbstractionRefinementEngine.java:82)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.<init>(TraceAbstractionStarter.java:154)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)
Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF
at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1465)
at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658)
at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383)
at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239)
... 51 more
[2022-11-21 09:11:29,174 INFO L158 Benchmark]: Toolchain (without parser) took 12036.44ms. Allocated memory is still 178.3MB. Free memory was 140.3MB in the beginning and 84.0MB in the end (delta: 56.2MB). Peak memory consumption was 58.1MB. Max. memory is 16.1GB.
[2022-11-21 09:11:29,174 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 130.0MB. Free memory is still 76.1MB. There was no memory consumed. Max. memory is 16.1GB.
[2022-11-21 09:11:29,175 INFO L158 Benchmark]: CACSL2BoogieTranslator took 339.80ms. Allocated memory is still 178.3MB. Free memory was 140.3MB in the beginning and 128.3MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
[2022-11-21 09:11:29,176 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.27ms. Allocated memory is still 178.3MB. Free memory was 128.3MB in the beginning and 127.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB.
[2022-11-21 09:11:29,176 INFO L158 Benchmark]: Boogie Preprocessor took 42.51ms. Allocated memory is still 178.3MB. Free memory was 127.0MB in the beginning and 125.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2022-11-21 09:11:29,177 INFO L158 Benchmark]: RCFGBuilder took 471.27ms. Allocated memory is still 178.3MB. Free memory was 125.6MB in the beginning and 113.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
[2022-11-21 09:11:29,177 INFO L158 Benchmark]: TraceAbstraction took 11131.78ms. Allocated memory is still 178.3MB. Free memory was 112.3MB in the beginning and 84.0MB in the end (delta: 28.3MB). Peak memory consumption was 30.8MB. Max. memory is 16.1GB.
[2022-11-21 09:11:29,187 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.26ms. Allocated memory is still 130.0MB. Free memory is still 76.1MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 339.80ms. Allocated memory is still 178.3MB. Free memory was 140.3MB in the beginning and 128.3MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 43.27ms. Allocated memory is still 178.3MB. Free memory was 128.3MB in the beginning and 127.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 42.51ms. Allocated memory is still 178.3MB. Free memory was 127.0MB in the beginning and 125.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 471.27ms. Allocated memory is still 178.3MB. Free memory was 125.6MB in the beginning and 113.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
* TraceAbstraction took 11131.78ms. Allocated memory is still 178.3MB. Free memory was 112.3MB in the beginning and 84.0MB in the end (delta: 28.3MB). Peak memory consumption was 30.8MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. No stderr output.
de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. No stderr output.: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243)
RESULT: Ultimate could not prove your program: Toolchain returned no result.
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Using bit-precise analysis
Retrying with bit-precise analysis
### Bit-precise run ###
Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/gcd_3+newton_3_4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/bin/uautomizer-vX5HgA9Q3a --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 cdcc8697c8b9bd3a25c95b335058fb611b45ef6a0bd08057dccc283c9b370e3d
--- Real Ultimate output ---
[0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset.
This is Ultimate 0.2.2-dev-b5237d8
[2022-11-21 09:11:31,838 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-11-21 09:11:31,841 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-11-21 09:11:31,865 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-11-21 09:11:31,865 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-11-21 09:11:31,867 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-11-21 09:11:31,869 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-11-21 09:11:31,871 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2022-11-21 09:11:31,873 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-11-21 09:11:31,874 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-11-21 09:11:31,876 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-11-21 09:11:31,877 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-11-21 09:11:31,878 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-11-21 09:11:31,879 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-11-21 09:11:31,881 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-11-21 09:11:31,882 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-11-21 09:11:31,884 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-11-21 09:11:31,885 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-11-21 09:11:31,887 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-11-21 09:11:31,890 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-11-21 09:11:31,892 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-11-21 09:11:31,894 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-11-21 09:11:31,895 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-11-21 09:11:31,897 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-11-21 09:11:31,901 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-11-21 09:11:31,902 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-11-21 09:11:31,903 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-11-21 09:11:31,904 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-11-21 09:11:31,905 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-11-21 09:11:31,906 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-11-21 09:11:31,907 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-11-21 09:11:31,908 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-11-21 09:11:31,909 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-11-21 09:11:31,911 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2022-11-21 09:11:31,923 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-11-21 09:11:31,924 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2022-11-21 09:11:31,925 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-11-21 09:11:31,925 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-11-21 09:11:31,926 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2022-11-21 09:11:31,927 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2022-11-21 09:11:31,928 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-11-21 09:11:31,929 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2022-11-21 09:11:31,985 INFO L113 SettingsManager]: Loading preferences was successful
[2022-11-21 09:11:31,988 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-11-21 09:11:31,991 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-11-21 09:11:31,991 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-11-21 09:11:31,992 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-11-21 09:11:31,993 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-11-21 09:11:31,994 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-11-21 09:11:31,994 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2022-11-21 09:11:31,994 INFO L138 SettingsManager]: * Use SBE=true
[2022-11-21 09:11:31,995 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-11-21 09:11:31,996 INFO L138 SettingsManager]: * sizeof long=4
[2022-11-21 09:11:31,996 INFO L138 SettingsManager]: * sizeof POINTER=4
[2022-11-21 09:11:31,996 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-11-21 09:11:31,997 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-11-21 09:11:31,997 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-11-21 09:11:31,997 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-11-21 09:11:31,998 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2022-11-21 09:11:31,998 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true
[2022-11-21 09:11:31,998 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2022-11-21 09:11:31,999 INFO L138 SettingsManager]: * sizeof long double=12
[2022-11-21 09:11:31,999 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-11-21 09:11:32,000 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-11-21 09:11:32,001 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-11-21 09:11:32,001 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-11-21 09:11:32,001 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-11-21 09:11:32,002 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-11-21 09:11:32,002 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-21 09:11:32,003 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-11-21 09:11:32,003 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2022-11-21 09:11:32,003 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-11-21 09:11:32,003 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF
[2022-11-21 09:11:32,004 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2022-11-21 09:11:32,004 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2022-11-21 09:11:32,005 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2022-11-21 09:11:32,005 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-11-21 09:11:32,005 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2022-11-21 09:11:32,006 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_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/bin/uautomizer-vX5HgA9Q3a/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/bin/uautomizer-vX5HgA9Q3a
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cdcc8697c8b9bd3a25c95b335058fb611b45ef6a0bd08057dccc283c9b370e3d
[2022-11-21 09:11:32,518 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-11-21 09:11:32,549 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-11-21 09:11:32,552 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-11-21 09:11:32,553 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-11-21 09:11:32,554 INFO L275 PluginConnector]: CDTParser initialized
[2022-11-21 09:11:32,561 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/combinations/gcd_3+newton_3_4.i
[2022-11-21 09:11:36,107 INFO L500 CDTParser]: Created temporary CDT project at NULL
[2022-11-21 09:11:36,413 INFO L351 CDTParser]: Found 1 translation units.
[2022-11-21 09:11:36,414 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/sv-benchmarks/c/combinations/gcd_3+newton_3_4.i
[2022-11-21 09:11:36,425 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/bin/uautomizer-vX5HgA9Q3a/data/8468dcd93/263aa7858e1f4998b36bf955696ed563/FLAGe2b6089c6
[2022-11-21 09:11:36,455 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/bin/uautomizer-vX5HgA9Q3a/data/8468dcd93/263aa7858e1f4998b36bf955696ed563
[2022-11-21 09:11:36,458 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-11-21 09:11:36,460 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2022-11-21 09:11:36,464 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-11-21 09:11:36,467 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-11-21 09:11:36,472 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-11-21 09:11:36,473 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:11:36" (1/1) ...
[2022-11-21 09:11:36,474 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@182bb5ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:11:36, skipping insertion in model container
[2022-11-21 09:11:36,475 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:11:36" (1/1) ...
[2022-11-21 09:11:36,485 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-11-21 09:11:36,511 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-11-21 09:11:36,749 WARN L237 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_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/sv-benchmarks/c/combinations/gcd_3+newton_3_4.i[1226,1239]
[2022-11-21 09:11:36,812 WARN L237 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_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/sv-benchmarks/c/combinations/gcd_3+newton_3_4.i[2862,2875]
[2022-11-21 09:11:36,817 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-21 09:11:36,837 INFO L203 MainTranslator]: Completed pre-run
[2022-11-21 09:11:36,863 WARN L237 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_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/sv-benchmarks/c/combinations/gcd_3+newton_3_4.i[1226,1239]
[2022-11-21 09:11:36,897 WARN L237 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_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/sv-benchmarks/c/combinations/gcd_3+newton_3_4.i[2862,2875]
[2022-11-21 09:11:36,898 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-21 09:11:36,919 INFO L208 MainTranslator]: Completed translation
[2022-11-21 09:11:36,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:11:36 WrapperNode
[2022-11-21 09:11:36,920 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-11-21 09:11:36,922 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-11-21 09:11:36,922 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-11-21 09:11:36,922 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2022-11-21 09:11:36,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:11:36" (1/1) ...
[2022-11-21 09:11:36,959 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:11:36" (1/1) ...
[2022-11-21 09:11:37,001 INFO L138 Inliner]: procedures = 28, calls = 26, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 85
[2022-11-21 09:11:37,002 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-11-21 09:11:37,002 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-11-21 09:11:37,004 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-11-21 09:11:37,004 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-11-21 09:11:37,016 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:11:36" (1/1) ...
[2022-11-21 09:11:37,017 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:11:36" (1/1) ...
[2022-11-21 09:11:37,030 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:11:36" (1/1) ...
[2022-11-21 09:11:37,032 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:11:36" (1/1) ...
[2022-11-21 09:11:37,050 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:11:36" (1/1) ...
[2022-11-21 09:11:37,110 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:11:36" (1/1) ...
[2022-11-21 09:11:37,112 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:11:36" (1/1) ...
[2022-11-21 09:11:37,114 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:11:36" (1/1) ...
[2022-11-21 09:11:37,118 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-11-21 09:11:37,119 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-11-21 09:11:37,119 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-11-21 09:11:37,119 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-11-21 09:11:37,121 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:11:36" (1/1) ...
[2022-11-21 09:11:37,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-21 09:11:37,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/bin/uautomizer-vX5HgA9Q3a/z3
[2022-11-21 09:11:37,210 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-11-21 09:11:37,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-11-21 09:11:37,273 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-11-21 09:11:37,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2022-11-21 09:11:37,273 INFO L130 BoogieDeclarations]: Found specification of procedure fp
[2022-11-21 09:11:37,274 INFO L138 BoogieDeclarations]: Found implementation of procedure fp
[2022-11-21 09:11:37,274 INFO L130 BoogieDeclarations]: Found specification of procedure f
[2022-11-21 09:11:37,274 INFO L138 BoogieDeclarations]: Found implementation of procedure f
[2022-11-21 09:11:37,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-11-21 09:11:37,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-11-21 09:11:37,381 INFO L235 CfgBuilder]: Building ICFG
[2022-11-21 09:11:37,384 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-11-21 09:11:48,504 INFO L276 CfgBuilder]: Performing block encoding
[2022-11-21 09:11:48,513 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-11-21 09:11:48,513 INFO L300 CfgBuilder]: Removed 1 assume(true) statements.
[2022-11-21 09:11:48,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:11:48 BoogieIcfgContainer
[2022-11-21 09:11:48,516 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-11-21 09:11:48,524 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-11-21 09:11:48,524 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-11-21 09:11:48,528 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-11-21 09:11:48,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 09:11:36" (1/3) ...
[2022-11-21 09:11:48,529 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@362addc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:11:48, skipping insertion in model container
[2022-11-21 09:11:48,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:11:36" (2/3) ...
[2022-11-21 09:11:48,530 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@362addc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:11:48, skipping insertion in model container
[2022-11-21 09:11:48,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:11:48" (3/3) ...
[2022-11-21 09:11:48,534 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_3+newton_3_4.i
[2022-11-21 09:11:48,558 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-11-21 09:11:48,559 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2022-11-21 09:11:48,626 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-11-21 09:11:48,633 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1419772f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2022-11-21 09:11:48,633 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2022-11-21 09:11:48,638 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 31 states have internal predecessors, (40), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2022-11-21 09:11:48,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2022-11-21 09:11:48,648 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-21 09:11:48,648 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-21 09:11:48,649 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-21 09:11:48,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-21 09:11:48,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1709385323, now seen corresponding path program 1 times
[2022-11-21 09:11:48,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-21 09:11:48,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1118886788]
[2022-11-21 09:11:48,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-21 09:11:48,673 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-11-21 09:11:48,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/bin/uautomizer-vX5HgA9Q3a/mathsat
[2022-11-21 09:11:48,679 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-21 09:11:48,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2022-11-21 09:11:48,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-21 09:11:48,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 3 conjunts are in the unsatisfiable core
[2022-11-21 09:11:48,784 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-21 09:11:49,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-21 09:11:49,017 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-21 09:11:49,018 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-21 09:11:49,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1118886788]
[2022-11-21 09:11:49,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1118886788] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-21 09:11:49,023 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-21 09:11:49,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-11-21 09:11:49,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469885830]
[2022-11-21 09:11:49,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-21 09:11:49,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-21 09:11:49,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-21 09:11:49,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-21 09:11:49,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-21 09:11:49,092 INFO L87 Difference]: Start difference. First operand has 40 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 31 states have internal predecessors, (40), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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)
[2022-11-21 09:11:49,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-21 09:11:49,206 INFO L93 Difference]: Finished difference Result 74 states and 94 transitions.
[2022-11-21 09:11:49,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2022-11-21 09:11:49,217 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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
[2022-11-21 09:11:49,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-21 09:11:49,225 INFO L225 Difference]: With dead ends: 74
[2022-11-21 09:11:49,226 INFO L226 Difference]: Without dead ends: 33
[2022-11-21 09:11:49,229 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-21 09:11:49,233 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 0 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-11-21 09:11:49,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 90 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-11-21 09:11:49,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states.
[2022-11-21 09:11:49,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33.
[2022-11-21 09:11:49,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 23 states have (on average 1.173913043478261) internal successors, (27), 24 states have internal predecessors, (27), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2022-11-21 09:11:49,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 39 transitions.
[2022-11-21 09:11:49,280 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 39 transitions. Word has length 11
[2022-11-21 09:11:49,281 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-21 09:11:49,281 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 39 transitions.
[2022-11-21 09:11:49,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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)
[2022-11-21 09:11:49,281 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 39 transitions.
[2022-11-21 09:11:49,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2022-11-21 09:11:49,283 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-21 09:11:49,283 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-21 09:11:49,297 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0
[2022-11-21 09:11:49,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-11-21 09:11:49,493 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-21 09:11:49,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-21 09:11:49,494 INFO L85 PathProgramCache]: Analyzing trace with hash 65622039, now seen corresponding path program 1 times
[2022-11-21 09:11:49,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-21 09:11:49,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [797430927]
[2022-11-21 09:11:49,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-21 09:11:49,496 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-11-21 09:11:49,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/bin/uautomizer-vX5HgA9Q3a/mathsat
[2022-11-21 09:11:49,497 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-21 09:11:49,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2022-11-21 09:11:49,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-21 09:11:49,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 4 conjunts are in the unsatisfiable core
[2022-11-21 09:11:49,559 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-21 09:11:49,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-21 09:11:49,706 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-21 09:11:49,706 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-21 09:11:49,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [797430927]
[2022-11-21 09:11:49,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [797430927] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-21 09:11:49,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-21 09:11:49,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2022-11-21 09:11:49,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374568962]
[2022-11-21 09:11:49,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-21 09:11:49,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-11-21 09:11:49,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-21 09:11:49,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-11-21 09:11:49,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-11-21 09:11:49,711 INFO L87 Difference]: Start difference. First operand 33 states and 39 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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)
[2022-11-21 09:11:49,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-21 09:11:49,864 INFO L93 Difference]: Finished difference Result 49 states and 56 transitions.
[2022-11-21 09:11:49,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2022-11-21 09:11:49,865 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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
[2022-11-21 09:11:49,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-21 09:11:49,866 INFO L225 Difference]: With dead ends: 49
[2022-11-21 09:11:49,867 INFO L226 Difference]: Without dead ends: 40
[2022-11-21 09:11:49,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-11-21 09:11:49,869 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 11 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-11-21 09:11:49,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 103 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-11-21 09:11:49,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states.
[2022-11-21 09:11:49,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 33.
[2022-11-21 09:11:49,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 24 states have internal predecessors, (26), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2022-11-21 09:11:49,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions.
[2022-11-21 09:11:49,880 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 11
[2022-11-21 09:11:49,881 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-21 09:11:49,881 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions.
[2022-11-21 09:11:49,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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)
[2022-11-21 09:11:49,882 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions.
[2022-11-21 09:11:49,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2022-11-21 09:11:49,883 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-21 09:11:49,883 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-21 09:11:49,904 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0
[2022-11-21 09:11:50,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-11-21 09:11:50,096 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-21 09:11:50,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-21 09:11:50,097 INFO L85 PathProgramCache]: Analyzing trace with hash -743724587, now seen corresponding path program 1 times
[2022-11-21 09:11:50,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-21 09:11:50,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1389388698]
[2022-11-21 09:11:50,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-21 09:11:50,098 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-11-21 09:11:50,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/bin/uautomizer-vX5HgA9Q3a/mathsat
[2022-11-21 09:11:50,116 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-21 09:11:50,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process
[2022-11-21 09:11:50,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-21 09:11:50,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 8 conjunts are in the unsatisfiable core
[2022-11-21 09:11:50,186 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-21 09:11:50,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-21 09:11:50,752 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-21 09:11:50,753 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-21 09:11:50,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1389388698]
[2022-11-21 09:11:50,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1389388698] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-21 09:11:50,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-21 09:11:50,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-11-21 09:11:50,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304308330]
[2022-11-21 09:11:50,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-21 09:11:50,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-11-21 09:11:50,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-21 09:11:50,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-11-21 09:11:50,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2022-11-21 09:11:50,756 INFO L87 Difference]: Start difference. First operand 33 states and 38 transitions. Second operand has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 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)
[2022-11-21 09:11:51,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-21 09:11:51,509 INFO L93 Difference]: Finished difference Result 40 states and 45 transitions.
[2022-11-21 09:11:51,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-11-21 09:11:51,515 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 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
[2022-11-21 09:11:51,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-21 09:11:51,516 INFO L225 Difference]: With dead ends: 40
[2022-11-21 09:11:51,516 INFO L226 Difference]: Without dead ends: 34
[2022-11-21 09:11:51,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90
[2022-11-21 09:11:51,518 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 10 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2022-11-21 09:11:51,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 185 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2022-11-21 09:11:51,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states.
[2022-11-21 09:11:51,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33.
[2022-11-21 09:11:51,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 24 states have internal predecessors, (26), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2022-11-21 09:11:51,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions.
[2022-11-21 09:11:51,533 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 11
[2022-11-21 09:11:51,533 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-21 09:11:51,534 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions.
[2022-11-21 09:11:51,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 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)
[2022-11-21 09:11:51,534 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions.
[2022-11-21 09:11:51,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2022-11-21 09:11:51,535 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-21 09:11:51,535 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-21 09:11:51,556 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0
[2022-11-21 09:11:51,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-11-21 09:11:51,753 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-21 09:11:51,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-21 09:11:51,754 INFO L85 PathProgramCache]: Analyzing trace with hash 830014046, now seen corresponding path program 1 times
[2022-11-21 09:11:51,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-21 09:11:51,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [194375748]
[2022-11-21 09:11:51,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-21 09:11:51,755 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-11-21 09:11:51,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/bin/uautomizer-vX5HgA9Q3a/mathsat
[2022-11-21 09:11:51,756 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-21 09:11:51,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process
[2022-11-21 09:11:51,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-21 09:11:51,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 16 conjunts are in the unsatisfiable core
[2022-11-21 09:11:51,892 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-21 09:11:55,365 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-21 09:11:55,365 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-11-21 09:12:15,603 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-21 09:12:15,603 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-21 09:12:15,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [194375748]
[2022-11-21 09:12:15,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [194375748] provided 0 perfect and 2 imperfect interpolant sequences
[2022-11-21 09:12:15,618 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2022-11-21 09:12:15,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18
[2022-11-21 09:12:15,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977466522]
[2022-11-21 09:12:15,618 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2022-11-21 09:12:15,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states
[2022-11-21 09:12:15,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-21 09:12:15,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants.
[2022-11-21 09:12:15,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=237, Unknown=6, NotChecked=0, Total=306
[2022-11-21 09:12:15,620 INFO L87 Difference]: Start difference. First operand 33 states and 38 transitions. Second operand has 18 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 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)
[2022-11-21 09:12:29,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2022-11-21 09:12:56,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-21 09:12:56,988 INFO L93 Difference]: Finished difference Result 47 states and 54 transitions.
[2022-11-21 09:12:56,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states.
[2022-11-21 09:12:56,997 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 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) Word has length 12
[2022-11-21 09:12:56,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-21 09:12:56,998 INFO L225 Difference]: With dead ends: 47
[2022-11-21 09:12:56,998 INFO L226 Difference]: Without dead ends: 37
[2022-11-21 09:12:56,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 54.9s TimeCoverageRelationStatistics Valid=175, Invalid=512, Unknown=15, NotChecked=0, Total=702
[2022-11-21 09:12:57,000 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 51 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time
[2022-11-21 09:12:57,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 264 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 98 Invalid, 1 Unknown, 0 Unchecked, 7.7s Time]
[2022-11-21 09:12:57,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states.
[2022-11-21 09:12:57,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 35.
[2022-11-21 09:12:57,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 25 states have (on average 1.12) internal successors, (28), 26 states have internal predecessors, (28), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2022-11-21 09:12:57,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 40 transitions.
[2022-11-21 09:12:57,011 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 40 transitions. Word has length 12
[2022-11-21 09:12:57,011 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-21 09:12:57,011 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 40 transitions.
[2022-11-21 09:12:57,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 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)
[2022-11-21 09:12:57,012 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 40 transitions.
[2022-11-21 09:12:57,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2022-11-21 09:12:57,013 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-21 09:12:57,013 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-21 09:12:57,033 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0
[2022-11-21 09:12:57,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-11-21 09:12:57,229 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-21 09:12:57,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-21 09:12:57,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1518646018, now seen corresponding path program 2 times
[2022-11-21 09:12:57,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-21 09:12:57,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [284455602]
[2022-11-21 09:12:57,231 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2022-11-21 09:12:57,231 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-11-21 09:12:57,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/bin/uautomizer-vX5HgA9Q3a/mathsat
[2022-11-21 09:12:57,234 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-21 09:12:57,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process
[2022-11-21 09:13:03,305 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2022-11-21 09:13:03,305 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-11-21 09:13:03,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 23 conjunts are in the unsatisfiable core
[2022-11-21 09:13:03,319 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-21 09:13:31,236 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-21 09:13:31,236 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-11-21 09:15:14,111 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-21 09:15:14,111 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-21 09:15:14,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [284455602]
[2022-11-21 09:15:14,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [284455602] provided 0 perfect and 2 imperfect interpolant sequences
[2022-11-21 09:15:14,112 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2022-11-21 09:15:14,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22
[2022-11-21 09:15:14,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193567534]
[2022-11-21 09:15:14,112 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2022-11-21 09:15:14,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states
[2022-11-21 09:15:14,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-21 09:15:14,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants.
[2022-11-21 09:15:14,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=364, Unknown=23, NotChecked=0, Total=462
[2022-11-21 09:15:14,114 INFO L87 Difference]: Start difference. First operand 35 states and 40 transitions. Second operand has 22 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 22 states have internal predecessors, (25), 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)
[2022-11-21 09:15:15,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2022-11-21 09:15:18,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2022-11-21 09:15:44,244 WARN L233 SmtUtils]: Spent 23.62s on a formula simplification. DAG size of input: 25 DAG size of output: 3 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2022-11-21 09:15:57,659 WARN L233 SmtUtils]: Spent 9.82s on a formula simplification. DAG size of input: 27 DAG size of output: 8 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2022-11-21 09:16:09,213 WARN L233 SmtUtils]: Spent 6.27s on a formula simplification. DAG size of input: 35 DAG size of output: 17 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2022-11-21 09:16:13,081 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2022-11-21 09:16:38,433 WARN L233 SmtUtils]: Spent 19.89s on a formula simplification. DAG size of input: 34 DAG size of output: 20 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2022-11-21 09:16:40,466 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2022-11-21 09:16:42,475 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2022-11-21 09:16:53,231 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1]
[2022-11-21 09:16:55,252 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1]
[2022-11-21 09:16:57,726 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2022-11-21 09:17:00,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2022-11-21 09:17:07,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1]
[2022-11-21 09:17:09,528 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1]
[2022-11-21 09:17:11,065 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2022-11-21 09:17:13,178 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2022-11-21 09:17:16,257 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2022-11-21 09:17:51,842 WARN L233 SmtUtils]: Spent 18.28s on a formula simplification. DAG size of input: 39 DAG size of output: 37 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2022-11-21 09:17:54,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1]
[2022-11-21 09:17:56,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1]
[2022-11-21 09:17:58,664 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2022-11-21 09:18:00,607 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2022-11-21 09:19:03,106 WARN L233 SmtUtils]: Spent 51.30s on a formula simplification. DAG size of input: 55 DAG size of output: 51 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2022-11-21 09:19:05,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1]
[2022-11-21 09:19:07,612 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1]
[2022-11-21 09:19:09,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2022-11-21 09:19:11,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2022-11-21 09:19:13,016 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2022-11-21 09:19:15,393 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2022-11-21 09:19:33,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1]
[2022-11-21 09:19:35,469 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2022-11-21 09:19:37,874 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2022-11-21 09:21:20,504 WARN L233 SmtUtils]: Spent 1.45m on a formula simplification. DAG size of input: 62 DAG size of output: 55 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2022-11-21 09:21:51,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1]
[2022-11-21 09:21:52,496 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2022-11-21 09:21:54,350 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2022-11-21 09:23:39,653 WARN L233 SmtUtils]: Spent 1.47m on a formula simplification. DAG size of input: 69 DAG size of output: 62 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2022-11-21 09:23:49,365 WARN L233 SmtUtils]: Spent 5.07s on a formula simplification. DAG size of input: 37 DAG size of output: 33 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2022-11-21 09:23:52,381 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1]
[2022-11-21 09:23:54,399 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2022-11-21 09:23:56,408 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2022-11-21 09:25:40,896 WARN L233 SmtUtils]: Spent 1.55m on a formula simplification. DAG size of input: 72 DAG size of output: 65 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2022-11-21 09:25:50,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-21 09:25:50,950 INFO L93 Difference]: Finished difference Result 50 states and 56 transitions.
[2022-11-21 09:25:50,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states.
[2022-11-21 09:25:50,976 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 22 states have internal predecessors, (25), 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 14
[2022-11-21 09:25:50,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-21 09:25:50,977 INFO L225 Difference]: With dead ends: 50
[2022-11-21 09:25:50,977 INFO L226 Difference]: Without dead ends: 40
[2022-11-21 09:25:50,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 664.0s TimeCoverageRelationStatistics Valid=291, Invalid=1063, Unknown=52, NotChecked=0, Total=1406
[2022-11-21 09:25:50,979 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 90 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 15 mSolverCounterUnsat, 26 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 80.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 26 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 82.0s IncrementalHoareTripleChecker+Time
[2022-11-21 09:25:50,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 433 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 141 Invalid, 26 Unknown, 0 Unchecked, 82.0s Time]
[2022-11-21 09:25:50,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states.
[2022-11-21 09:25:50,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 37.
[2022-11-21 09:25:50,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 28 states have internal predecessors, (30), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2022-11-21 09:25:50,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 42 transitions.
[2022-11-21 09:25:50,995 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 42 transitions. Word has length 14
[2022-11-21 09:25:50,995 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-21 09:25:50,996 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 42 transitions.
[2022-11-21 09:25:50,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 22 states have internal predecessors, (25), 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)
[2022-11-21 09:25:50,997 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 42 transitions.
[2022-11-21 09:25:50,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2022-11-21 09:25:50,998 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-21 09:25:50,998 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-21 09:25:51,016 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0
[2022-11-21 09:25:51,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-11-21 09:25:51,213 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-21 09:25:51,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-21 09:25:51,214 INFO L85 PathProgramCache]: Analyzing trace with hash -1825995883, now seen corresponding path program 1 times
[2022-11-21 09:25:51,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-21 09:25:51,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [102508017]
[2022-11-21 09:25:51,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-21 09:25:51,214 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-11-21 09:25:51,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/bin/uautomizer-vX5HgA9Q3a/mathsat
[2022-11-21 09:25:51,215 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-21 09:25:51,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac7fdc6-20f7-485b-b0fe-7b12fefb5e1e/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process
[2022-11-21 09:25:59,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-21 09:25:59,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 27 conjunts are in the unsatisfiable core
[2022-11-21 09:25:59,289 INFO L286 TraceCheckSpWp]: Computing forward predicates...