./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound2.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version b2eff8ba
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684484ff-f05e-4349-8128-4e08068a3279/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684484ff-f05e-4349-8128-4e08068a3279/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684484ff-f05e-4349-8128-4e08068a3279/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684484ff-f05e-4349-8128-4e08068a3279/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684484ff-f05e-4349-8128-4e08068a3279/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684484ff-f05e-4349-8128-4e08068a3279/bin/uautomizer-GMMbpWq8iD --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 d2bc2a3f53718ecf47344b6d9b2d76a5698712f748ff03cd831a90a334f72c9d
..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE
--- Real Ultimate output ---
This is Ultimate 0.2.1-dev-b2eff8b
[2021-10-28 23:11:56,040 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-10-28 23:11:56,042 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-10-28 23:11:56,083 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-10-28 23:11:56,084 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-10-28 23:11:56,085 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-10-28 23:11:56,087 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-10-28 23:11:56,090 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-10-28 23:11:56,095 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-10-28 23:11:56,097 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-10-28 23:11:56,098 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-10-28 23:11:56,100 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-10-28 23:11:56,102 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-10-28 23:11:56,104 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-10-28 23:11:56,106 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-10-28 23:11:56,108 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-10-28 23:11:56,109 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-10-28 23:11:56,110 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-10-28 23:11:56,113 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-10-28 23:11:56,115 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-10-28 23:11:56,117 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-10-28 23:11:56,119 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-10-28 23:11:56,120 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-10-28 23:11:56,121 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-10-28 23:11:56,125 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-10-28 23:11:56,131 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-10-28 23:11:56,131 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-10-28 23:11:56,132 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-10-28 23:11:56,134 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-10-28 23:11:56,135 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-10-28 23:11:56,137 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-10-28 23:11:56,138 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-10-28 23:11:56,140 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-10-28 23:11:56,141 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2021-10-28 23:11:56,143 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-10-28 23:11:56,144 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2021-10-28 23:11:56,145 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-10-28 23:11:56,145 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-10-28 23:11:56,146 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2021-10-28 23:11:56,147 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2021-10-28 23:11:56,148 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-10-28 23:11:56,149 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684484ff-f05e-4349-8128-4e08068a3279/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf
[2021-10-28 23:11:56,201 INFO L113 SettingsManager]: Loading preferences was successful
[2021-10-28 23:11:56,204 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-10-28 23:11:56,204 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-10-28 23:11:56,205 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-10-28 23:11:56,212 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-10-28 23:11:56,213 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2021-10-28 23:11:56,213 INFO L138 SettingsManager]: * Use SBE=true
[2021-10-28 23:11:56,213 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-10-28 23:11:56,214 INFO L138 SettingsManager]: * sizeof long=4
[2021-10-28 23:11:56,214 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2021-10-28 23:11:56,215 INFO L138 SettingsManager]: * sizeof POINTER=4
[2021-10-28 23:11:56,215 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-10-28 23:11:56,216 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2021-10-28 23:11:56,216 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-10-28 23:11:56,216 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2021-10-28 23:11:56,216 INFO L138 SettingsManager]: * sizeof long double=12
[2021-10-28 23:11:56,217 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2021-10-28 23:11:56,217 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-10-28 23:11:56,217 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2021-10-28 23:11:56,217 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-10-28 23:11:56,217 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-10-28 23:11:56,218 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2021-10-28 23:11:56,218 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-10-28 23:11:56,218 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-10-28 23:11:56,218 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2021-10-28 23:11:56,219 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-10-28 23:11:56,219 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2021-10-28 23:11:56,219 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-10-28 23:11:56,219 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF
[2021-10-28 23:11:56,221 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2021-10-28 23:11:56,222 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-10-28 23:11:56,222 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2021-10-28 23:11:56,222 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_684484ff-f05e-4349-8128-4e08068a3279/bin/uautomizer-GMMbpWq8iD/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684484ff-f05e-4349-8128-4e08068a3279/bin/uautomizer-GMMbpWq8iD
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d2bc2a3f53718ecf47344b6d9b2d76a5698712f748ff03cd831a90a334f72c9d
[2021-10-28 23:11:56,551 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-10-28 23:11:56,574 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-10-28 23:11:56,577 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-10-28 23:11:56,578 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-10-28 23:11:56,579 INFO L275 PluginConnector]: CDTParser initialized
[2021-10-28 23:11:56,580 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684484ff-f05e-4349-8128-4e08068a3279/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound2.c
[2021-10-28 23:11:56,641 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684484ff-f05e-4349-8128-4e08068a3279/bin/uautomizer-GMMbpWq8iD/data/610e86325/7d864a5c64f2452eb9adc2cd9c28da6a/FLAG7bc145536
[2021-10-28 23:11:57,079 INFO L306 CDTParser]: Found 1 translation units.
[2021-10-28 23:11:57,079 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684484ff-f05e-4349-8128-4e08068a3279/sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound2.c
[2021-10-28 23:11:57,086 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684484ff-f05e-4349-8128-4e08068a3279/bin/uautomizer-GMMbpWq8iD/data/610e86325/7d864a5c64f2452eb9adc2cd9c28da6a/FLAG7bc145536
[2021-10-28 23:11:57,481 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684484ff-f05e-4349-8128-4e08068a3279/bin/uautomizer-GMMbpWq8iD/data/610e86325/7d864a5c64f2452eb9adc2cd9c28da6a
[2021-10-28 23:11:57,483 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-10-28 23:11:57,485 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2021-10-28 23:11:57,495 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-10-28 23:11:57,495 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-10-28 23:11:57,499 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-10-28 23:11:57,500 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:11:57" (1/1) ...
[2021-10-28 23:11:57,501 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10c86494 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:11:57, skipping insertion in model container
[2021-10-28 23:11:57,501 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:11:57" (1/1) ...
[2021-10-28 23:11:57,508 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-10-28 23:11:57,524 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-10-28 23:11:57,698 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684484ff-f05e-4349-8128-4e08068a3279/sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound2.c[537,550]
[2021-10-28 23:11:57,720 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-10-28 23:11:57,728 INFO L203 MainTranslator]: Completed pre-run
[2021-10-28 23:11:57,739 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684484ff-f05e-4349-8128-4e08068a3279/sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound2.c[537,550]
[2021-10-28 23:11:57,745 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-10-28 23:11:57,759 INFO L208 MainTranslator]: Completed translation
[2021-10-28 23:11:57,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:11:57 WrapperNode
[2021-10-28 23:11:57,760 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-10-28 23:11:57,761 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-10-28 23:11:57,761 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-10-28 23:11:57,761 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2021-10-28 23:11:57,769 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:11:57" (1/1) ...
[2021-10-28 23:11:57,776 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:11:57" (1/1) ...
[2021-10-28 23:11:57,797 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-10-28 23:11:57,797 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-10-28 23:11:57,798 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-10-28 23:11:57,798 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-10-28 23:11:57,806 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:11:57" (1/1) ...
[2021-10-28 23:11:57,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:11:57" (1/1) ...
[2021-10-28 23:11:57,808 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:11:57" (1/1) ...
[2021-10-28 23:11:57,808 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:11:57" (1/1) ...
[2021-10-28 23:11:57,812 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:11:57" (1/1) ...
[2021-10-28 23:11:57,816 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:11:57" (1/1) ...
[2021-10-28 23:11:57,817 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:11:57" (1/1) ...
[2021-10-28 23:11:57,819 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-10-28 23:11:57,820 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-10-28 23:11:57,820 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-10-28 23:11:57,820 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-10-28 23:11:57,821 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:11:57" (1/1) ...
[2021-10-28 23:11:57,829 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-10-28 23:11:57,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684484ff-f05e-4349-8128-4e08068a3279/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:11:57,856 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684484ff-f05e-4349-8128-4e08068a3279/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2021-10-28 23:11:57,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684484ff-f05e-4349-8128-4e08068a3279/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2021-10-28 23:11:57,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2021-10-28 23:11:57,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-10-28 23:11:57,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-10-28 23:11:57,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-10-28 23:11:58,160 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-10-28 23:11:58,160 INFO L299 CfgBuilder]: Removed 15 assume(true) statements.
[2021-10-28 23:11:58,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:11:58 BoogieIcfgContainer
[2021-10-28 23:11:58,162 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-10-28 23:11:58,164 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-10-28 23:11:58,164 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2021-10-28 23:11:58,181 INFO L275 PluginConnector]: TraceAbstraction initialized
[2021-10-28 23:11:58,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:11:57" (1/3) ...
[2021-10-28 23:11:58,182 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@378e6ff8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:11:58, skipping insertion in model container
[2021-10-28 23:11:58,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:11:57" (2/3) ...
[2021-10-28 23:11:58,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@378e6ff8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:11:58, skipping insertion in model container
[2021-10-28 23:11:58,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:11:58" (3/3) ...
[2021-10-28 23:11:58,184 INFO L111 eAbstractionObserver]: Analyzing ICFG prodbin-ll_valuebound2.c
[2021-10-28 23:11:58,197 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-10-28 23:11:58,198 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2021-10-28 23:11:58,282 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-10-28 23:11:58,289 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR
[2021-10-28 23:11:58,289 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2021-10-28 23:11:58,321 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 20 states have (on average 1.55) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:11:58,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2021-10-28 23:11:58,327 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:11:58,328 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 23:11:58,330 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 23:11:58,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:11:58,340 INFO L85 PathProgramCache]: Analyzing trace with hash 330581779, now seen corresponding path program 1 times
[2021-10-28 23:11:58,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:11:58,366 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053382564]
[2021-10-28 23:11:58,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:11:58,367 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:11:58,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:11:58,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:11:58,588 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:11:58,589 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053382564]
[2021-10-28 23:11:58,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053382564] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:11:58,591 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:11:58,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-10-28 23:11:58,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656760800]
[2021-10-28 23:11:58,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2021-10-28 23:11:58,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:11:58,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2021-10-28 23:11:58,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2021-10-28 23:11:58,628 INFO L87 Difference]: Start difference. First operand has 23 states, 20 states have (on average 1.55) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 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)
[2021-10-28 23:11:58,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:11:58,646 INFO L93 Difference]: Finished difference Result 43 states and 58 transitions.
[2021-10-28 23:11:58,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2021-10-28 23:11:58,648 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 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
[2021-10-28 23:11:58,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:11:58,656 INFO L225 Difference]: With dead ends: 43
[2021-10-28 23:11:58,656 INFO L226 Difference]: Without dead ends: 19
[2021-10-28 23:11:58,660 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2021-10-28 23:11:58,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states.
[2021-10-28 23:11:58,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19.
[2021-10-28 23:11:58,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 18 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:11:58,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions.
[2021-10-28 23:11:58,695 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 11
[2021-10-28 23:11:58,697 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:11:58,698 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions.
[2021-10-28 23:11:58,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 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)
[2021-10-28 23:11:58,699 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions.
[2021-10-28 23:11:58,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2021-10-28 23:11:58,700 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:11:58,701 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 23:11:58,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-10-28 23:11:58,701 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 23:11:58,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:11:58,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1507472743, now seen corresponding path program 1 times
[2021-10-28 23:11:58,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:11:58,708 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660015146]
[2021-10-28 23:11:58,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:11:58,709 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:11:58,761 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2021-10-28 23:11:58,761 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [791548486]
[2021-10-28 23:11:58,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:11:58,762 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 23:11:58,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684484ff-f05e-4349-8128-4e08068a3279/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:11:58,770 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684484ff-f05e-4349-8128-4e08068a3279/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-10-28 23:11:58,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684484ff-f05e-4349-8128-4e08068a3279/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2021-10-28 23:11:58,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:11:58,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 9 conjunts are in the unsatisfiable core
[2021-10-28 23:11:58,872 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:11:59,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:11:59,098 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:11:59,098 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660015146]
[2021-10-28 23:11:59,099 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown
[2021-10-28 23:11:59,099 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [791548486]
[2021-10-28 23:11:59,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [791548486] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:11:59,100 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:11:59,100 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2021-10-28 23:11:59,101 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717439114]
[2021-10-28 23:11:59,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-10-28 23:11:59,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:11:59,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-10-28 23:11:59,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-10-28 23:11:59,107 INFO L87 Difference]: Start difference. First operand 19 states and 20 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)
[2021-10-28 23:11:59,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:11:59,212 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions.
[2021-10-28 23:11:59,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-10-28 23:11:59,213 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
[2021-10-28 23:11:59,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:11:59,216 INFO L225 Difference]: With dead ends: 32
[2021-10-28 23:11:59,217 INFO L226 Difference]: Without dead ends: 30
[2021-10-28 23:11:59,218 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2021-10-28 23:11:59,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states.
[2021-10-28 23:11:59,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 21.
[2021-10-28 23:11:59,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 20 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:11:59,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions.
[2021-10-28 23:11:59,227 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 11
[2021-10-28 23:11:59,228 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:11:59,228 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions.
[2021-10-28 23:11:59,229 INFO L471 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)
[2021-10-28 23:11:59,229 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions.
[2021-10-28 23:11:59,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2021-10-28 23:11:59,231 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:11:59,232 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 23:11:59,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684484ff-f05e-4349-8128-4e08068a3279/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2021-10-28 23:11:59,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684484ff-f05e-4349-8128-4e08068a3279/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 23:11:59,439 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 23:11:59,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:11:59,440 INFO L85 PathProgramCache]: Analyzing trace with hash -937526112, now seen corresponding path program 1 times
[2021-10-28 23:11:59,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:11:59,442 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830453696]
[2021-10-28 23:11:59,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:11:59,442 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:11:59,468 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2021-10-28 23:11:59,469 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2111027226]
[2021-10-28 23:11:59,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:11:59,470 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 23:11:59,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684484ff-f05e-4349-8128-4e08068a3279/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:11:59,471 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684484ff-f05e-4349-8128-4e08068a3279/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-10-28 23:11:59,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684484ff-f05e-4349-8128-4e08068a3279/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2021-10-28 23:11:59,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:11:59,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 7 conjunts are in the unsatisfiable core
[2021-10-28 23:11:59,525 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:11:59,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:11:59,655 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:11:59,655 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830453696]
[2021-10-28 23:11:59,655 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown
[2021-10-28 23:11:59,655 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2111027226]
[2021-10-28 23:11:59,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2111027226] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:11:59,656 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:11:59,656 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2021-10-28 23:11:59,656 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581201621]
[2021-10-28 23:11:59,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2021-10-28 23:11:59,657 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:11:59,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-10-28 23:11:59,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-10-28 23:11:59,659 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:11:59,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:11:59,732 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions.
[2021-10-28 23:11:59,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-10-28 23:11:59,732 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14
[2021-10-28 23:11:59,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:11:59,734 INFO L225 Difference]: With dead ends: 28
[2021-10-28 23:11:59,734 INFO L226 Difference]: Without dead ends: 24
[2021-10-28 23:11:59,734 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2021-10-28 23:11:59,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states.
[2021-10-28 23:11:59,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 22.
[2021-10-28 23:11:59,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 20 states have (on average 1.15) internal successors, (23), 21 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:11:59,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions.
[2021-10-28 23:11:59,740 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 14
[2021-10-28 23:11:59,740 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:11:59,740 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions.
[2021-10-28 23:11:59,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:11:59,741 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions.
[2021-10-28 23:11:59,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2021-10-28 23:11:59,742 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:11:59,742 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 23:11:59,778 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684484ff-f05e-4349-8128-4e08068a3279/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2021-10-28 23:11:59,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684484ff-f05e-4349-8128-4e08068a3279/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 23:11:59,955 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 23:11:59,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:11:59,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1030171456, now seen corresponding path program 1 times
[2021-10-28 23:11:59,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:11:59,956 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924053170]
[2021-10-28 23:11:59,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:11:59,957 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:11:59,985 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2021-10-28 23:11:59,986 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [641021618]
[2021-10-28 23:11:59,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:11:59,986 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 23:11:59,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684484ff-f05e-4349-8128-4e08068a3279/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:12:00,002 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684484ff-f05e-4349-8128-4e08068a3279/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-10-28 23:12:00,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684484ff-f05e-4349-8128-4e08068a3279/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2021-10-28 23:12:00,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:12:00,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 37 conjunts are in the unsatisfiable core
[2021-10-28 23:12:00,094 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:12:01,133 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:12:01,133 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:12:01,135 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924053170]
[2021-10-28 23:12:01,135 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown
[2021-10-28 23:12:01,136 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [641021618]
[2021-10-28 23:12:01,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [641021618] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:12:01,136 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2021-10-28 23:12:01,136 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13
[2021-10-28 23:12:01,137 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945350155]
[2021-10-28 23:12:01,139 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2021-10-28 23:12:01,139 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:12:01,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2021-10-28 23:12:01,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156
[2021-10-28 23:12:01,144 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand has 13 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:12:01,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:12:01,575 INFO L93 Difference]: Finished difference Result 42 states and 47 transitions.
[2021-10-28 23:12:01,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2021-10-28 23:12:01,575 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16
[2021-10-28 23:12:01,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:12:01,576 INFO L225 Difference]: With dead ends: 42
[2021-10-28 23:12:01,577 INFO L226 Difference]: Without dead ends: 25
[2021-10-28 23:12:01,577 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380
[2021-10-28 23:12:01,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states.
[2021-10-28 23:12:01,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 23.
[2021-10-28 23:12:01,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 22 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:12:01,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions.
[2021-10-28 23:12:01,582 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 16
[2021-10-28 23:12:01,582 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:12:01,583 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions.
[2021-10-28 23:12:01,583 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:12:01,583 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions.
[2021-10-28 23:12:01,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2021-10-28 23:12:01,584 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:12:01,584 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 23:12:01,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684484ff-f05e-4349-8128-4e08068a3279/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2021-10-28 23:12:01,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684484ff-f05e-4349-8128-4e08068a3279/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 23:12:01,785 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 23:12:01,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:12:01,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1032018498, now seen corresponding path program 1 times
[2021-10-28 23:12:01,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:12:01,786 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713001042]
[2021-10-28 23:12:01,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:12:01,786 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:12:01,803 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2021-10-28 23:12:01,803 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1829569950]
[2021-10-28 23:12:01,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:12:01,804 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 23:12:01,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684484ff-f05e-4349-8128-4e08068a3279/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:12:01,805 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684484ff-f05e-4349-8128-4e08068a3279/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-10-28 23:12:01,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684484ff-f05e-4349-8128-4e08068a3279/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2021-10-28 23:12:01,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:12:01,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 28 conjunts are in the unsatisfiable core
[2021-10-28 23:12:01,957 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:12:02,767 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:12:02,767 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:12:02,768 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713001042]
[2021-10-28 23:12:02,768 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown
[2021-10-28 23:12:02,768 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1829569950]
[2021-10-28 23:12:02,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1829569950] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:12:02,768 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2021-10-28 23:12:02,768 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9
[2021-10-28 23:12:02,769 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659959256]
[2021-10-28 23:12:02,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2021-10-28 23:12:02,769 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:12:02,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2021-10-28 23:12:02,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72
[2021-10-28 23:12:02,770 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand has 9 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:12:03,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:12:03,040 INFO L93 Difference]: Finished difference Result 37 states and 39 transitions.
[2021-10-28 23:12:03,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2021-10-28 23:12:03,041 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16
[2021-10-28 23:12:03,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:12:03,042 INFO L225 Difference]: With dead ends: 37
[2021-10-28 23:12:03,042 INFO L226 Difference]: Without dead ends: 31
[2021-10-28 23:12:03,042 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210
[2021-10-28 23:12:03,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states.
[2021-10-28 23:12:03,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 27.
[2021-10-28 23:12:03,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 25 states have (on average 1.12) internal successors, (28), 26 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:12:03,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions.
[2021-10-28 23:12:03,048 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 16
[2021-10-28 23:12:03,048 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:12:03,048 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions.
[2021-10-28 23:12:03,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:12:03,049 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions.
[2021-10-28 23:12:03,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2021-10-28 23:12:03,050 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:12:03,050 INFO L513 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 23:12:03,089 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684484ff-f05e-4349-8128-4e08068a3279/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2021-10-28 23:12:03,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684484ff-f05e-4349-8128-4e08068a3279/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 23:12:03,251 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 23:12:03,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:12:03,251 INFO L85 PathProgramCache]: Analyzing trace with hash -577897161, now seen corresponding path program 1 times
[2021-10-28 23:12:03,251 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:12:03,252 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029318520]
[2021-10-28 23:12:03,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:12:03,252 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:12:03,281 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2021-10-28 23:12:03,281 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1768355827]
[2021-10-28 23:12:03,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:12:03,282 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 23:12:03,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684484ff-f05e-4349-8128-4e08068a3279/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:12:03,286 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684484ff-f05e-4349-8128-4e08068a3279/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-10-28 23:12:03,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684484ff-f05e-4349-8128-4e08068a3279/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2021-10-28 23:12:03,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:12:03,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 43 conjunts are in the unsatisfiable core
[2021-10-28 23:12:03,418 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:12:04,266 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:12:04,266 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:12:04,267 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029318520]
[2021-10-28 23:12:04,267 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown
[2021-10-28 23:12:04,267 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1768355827]
[2021-10-28 23:12:04,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1768355827] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:12:04,267 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2021-10-28 23:12:04,267 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13
[2021-10-28 23:12:04,268 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285479008]
[2021-10-28 23:12:04,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2021-10-28 23:12:04,269 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:12:04,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2021-10-28 23:12:04,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156
[2021-10-28 23:12:04,270 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand has 13 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 13 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:12:04,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:12:04,779 INFO L93 Difference]: Finished difference Result 34 states and 38 transitions.
[2021-10-28 23:12:04,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2021-10-28 23:12:04,780 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 13 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 21
[2021-10-28 23:12:04,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:12:04,780 INFO L225 Difference]: With dead ends: 34
[2021-10-28 23:12:04,780 INFO L226 Difference]: Without dead ends: 0
[2021-10-28 23:12:04,781 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=126, Invalid=336, Unknown=0, NotChecked=0, Total=462
[2021-10-28 23:12:04,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2021-10-28 23:12:04,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2021-10-28 23:12:04,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:12:04,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2021-10-28 23:12:04,782 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21
[2021-10-28 23:12:04,782 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:12:04,782 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2021-10-28 23:12:04,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 13 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:12:04,782 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2021-10-28 23:12:04,783 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2021-10-28 23:12:04,785 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION
[2021-10-28 23:12:04,786 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION
[2021-10-28 23:12:04,826 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684484ff-f05e-4349-8128-4e08068a3279/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2021-10-28 23:12:04,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684484ff-f05e-4349-8128-4e08068a3279/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 23:12:04,996 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2021-10-28 23:12:05,001 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms
[2021-10-28 23:12:05,069 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms
[2021-10-28 23:12:05,107 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms
[2021-10-28 23:12:05,108 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms
[2021-10-28 23:12:05,713 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 15) no Hoare annotation was computed.
[2021-10-28 23:12:05,713 INFO L860 garLoopResultBuilder]: At program point L48(lines 20 49) the Hoare annotation is: true
[2021-10-28 23:12:05,713 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed.
[2021-10-28 23:12:05,713 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed.
[2021-10-28 23:12:05,713 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2021-10-28 23:12:05,714 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 15) no Hoare annotation was computed.
[2021-10-28 23:12:05,714 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2021-10-28 23:12:05,714 INFO L857 garLoopResultBuilder]: For program point L13(lines 13 16) no Hoare annotation was computed.
[2021-10-28 23:12:05,714 INFO L853 garLoopResultBuilder]: At program point L13-2(lines 36 37) the Hoare annotation is: (let ((.cse5 (* 2 ULTIMATE.start_main_~a~0))) (let ((.cse3 (div ULTIMATE.start_main_~b~0 2)) (.cse9 (= ULTIMATE.start_main_~x~0 .cse5)) (.cse1 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse8 (mod ULTIMATE.start_main_~b~0 2)) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse2 (<= ULTIMATE.start_main_~a~0 2)) (.cse10 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse4 (<= ULTIMATE.start_main_~b~0 2)) (.cse6 (<= 1 ULTIMATE.start_main_~b~0)) (.cse7 (<= 0 ULTIMATE.start_main_~a~0))) (or (and .cse0 .cse1 .cse2 (<= 1 (mod .cse3 2)) (= ULTIMATE.start_main_~x~0 (* 4 ULTIMATE.start_main_~a~0)) .cse4 (= ULTIMATE.start_main_~z~0 .cse5) .cse6 (= ULTIMATE.start_main_~y~0 (div (+ (- 1) .cse3) 2)) .cse7) (and (= ULTIMATE.start_main_~z~0 0) (not (= .cse8 1)) .cse0 .cse9 .cse2 (= ULTIMATE.start_main_~y~0 .cse3) .cse10 .cse4 .cse6 .cse7) (and .cse0 .cse9 .cse1 .cse2 .cse4 (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~z~0) .cse6 (<= 1 .cse8) .cse7 (= ULTIMATE.start_main_~y~0 (div (+ (- 1) ULTIMATE.start_main_~b~0) 2))) (and .cse0 (= (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~b~0) (+ ULTIMATE.start_main_~z~0 (* ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~y~0))) (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~x~0) .cse2 .cse10 .cse4 .cse6 .cse7 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0)))))
[2021-10-28 23:12:05,714 INFO L857 garLoopResultBuilder]: For program point L13-3(lines 13 16) no Hoare annotation was computed.
[2021-10-28 23:12:05,714 INFO L857 garLoopResultBuilder]: For program point L9(lines 9 11) no Hoare annotation was computed.
[2021-10-28 23:12:05,715 INFO L857 garLoopResultBuilder]: For program point L9-1(lines 9 11) no Hoare annotation was computed.
[2021-10-28 23:12:05,715 INFO L860 garLoopResultBuilder]: At program point L13-5(lines 12 18) the Hoare annotation is: true
[2021-10-28 23:12:05,715 INFO L857 garLoopResultBuilder]: For program point L9-2(lines 9 11) no Hoare annotation was computed.
[2021-10-28 23:12:05,715 INFO L853 garLoopResultBuilder]: At program point L34-2(lines 34 45) the Hoare annotation is: (let ((.cse5 (* 2 ULTIMATE.start_main_~a~0))) (let ((.cse3 (div ULTIMATE.start_main_~b~0 2)) (.cse9 (= ULTIMATE.start_main_~x~0 .cse5)) (.cse1 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse8 (mod ULTIMATE.start_main_~b~0 2)) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse2 (<= ULTIMATE.start_main_~a~0 2)) (.cse4 (<= ULTIMATE.start_main_~b~0 2)) (.cse6 (<= 1 ULTIMATE.start_main_~b~0)) (.cse7 (<= 0 ULTIMATE.start_main_~a~0))) (or (and .cse0 .cse1 .cse2 (<= 1 (mod .cse3 2)) (= ULTIMATE.start_main_~x~0 (* 4 ULTIMATE.start_main_~a~0)) .cse4 (= ULTIMATE.start_main_~z~0 .cse5) .cse6 (= ULTIMATE.start_main_~y~0 (div (+ (- 1) .cse3) 2)) .cse7) (and (= ULTIMATE.start_main_~z~0 0) (not (= .cse8 1)) .cse0 .cse9 .cse1 .cse2 (= ULTIMATE.start_main_~y~0 .cse3) .cse4 .cse6 .cse7) (and .cse0 .cse9 .cse1 .cse2 .cse4 (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~z~0) .cse6 (<= 1 .cse8) .cse7 (= ULTIMATE.start_main_~y~0 (div (+ (- 1) ULTIMATE.start_main_~b~0) 2))) (and .cse0 (= (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~b~0) (+ ULTIMATE.start_main_~z~0 (* ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~y~0))) (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~x~0) .cse2 .cse4 .cse6 .cse7 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0)))))
[2021-10-28 23:12:05,715 INFO L857 garLoopResultBuilder]: For program point L34-3(lines 34 45) no Hoare annotation was computed.
[2021-10-28 23:12:05,715 INFO L857 garLoopResultBuilder]: For program point L14(lines 14 15) no Hoare annotation was computed.
[2021-10-28 23:12:05,715 INFO L857 garLoopResultBuilder]: For program point L14-1(lines 14 15) no Hoare annotation was computed.
[2021-10-28 23:12:05,716 INFO L857 garLoopResultBuilder]: For program point L10(line 10) no Hoare annotation was computed.
[2021-10-28 23:12:05,716 INFO L857 garLoopResultBuilder]: For program point L10-2(line 10) no Hoare annotation was computed.
[2021-10-28 23:12:05,716 INFO L857 garLoopResultBuilder]: For program point L39(lines 39 42) no Hoare annotation was computed.
[2021-10-28 23:12:05,716 INFO L857 garLoopResultBuilder]: For program point L10-4(line 10) no Hoare annotation was computed.
[2021-10-28 23:12:05,716 INFO L857 garLoopResultBuilder]: For program point L39-2(lines 39 42) no Hoare annotation was computed.
[2021-10-28 23:12:05,719 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1]
[2021-10-28 23:12:05,721 INFO L179 ceAbstractionStarter]: Computing trace abstraction results
[2021-10-28 23:12:05,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:12:05 BoogieIcfgContainer
[2021-10-28 23:12:05,742 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-10-28 23:12:05,743 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2021-10-28 23:12:05,743 INFO L271 PluginConnector]: Initializing Witness Printer...
[2021-10-28 23:12:05,743 INFO L275 PluginConnector]: Witness Printer initialized
[2021-10-28 23:12:05,744 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:11:58" (3/4) ...
[2021-10-28 23:12:05,747 INFO L137 WitnessPrinter]: Generating witness for correct program
[2021-10-28 23:12:05,758 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges
[2021-10-28 23:12:05,759 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges
[2021-10-28 23:12:05,759 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2021-10-28 23:12:05,759 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2021-10-28 23:12:05,804 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684484ff-f05e-4349-8128-4e08068a3279/bin/uautomizer-GMMbpWq8iD/witness.graphml
[2021-10-28 23:12:05,804 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2021-10-28 23:12:05,806 INFO L168 Benchmark]: Toolchain (without parser) took 8319.62 ms. Allocated memory was 104.9 MB in the beginning and 136.3 MB in the end (delta: 31.5 MB). Free memory was 67.2 MB in the beginning and 87.0 MB in the end (delta: -19.8 MB). Peak memory consumption was 12.1 MB. Max. memory is 16.1 GB.
[2021-10-28 23:12:05,806 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 104.9 MB. Free memory was 84.0 MB in the beginning and 83.9 MB in the end (delta: 65.7 kB). There was no memory consumed. Max. memory is 16.1 GB.
[2021-10-28 23:12:05,807 INFO L168 Benchmark]: CACSL2BoogieTranslator took 265.69 ms. Allocated memory is still 104.9 MB. Free memory was 67.0 MB in the beginning and 80.0 MB in the end (delta: -13.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB.
[2021-10-28 23:12:05,808 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.78 ms. Allocated memory is still 104.9 MB. Free memory was 80.0 MB in the beginning and 78.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
[2021-10-28 23:12:05,808 INFO L168 Benchmark]: Boogie Preprocessor took 21.75 ms. Allocated memory is still 104.9 MB. Free memory was 78.5 MB in the beginning and 77.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
[2021-10-28 23:12:05,809 INFO L168 Benchmark]: RCFGBuilder took 342.77 ms. Allocated memory is still 104.9 MB. Free memory was 77.4 MB in the beginning and 67.3 MB in the end (delta: 10.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB.
[2021-10-28 23:12:05,810 INFO L168 Benchmark]: TraceAbstraction took 7578.26 ms. Allocated memory was 104.9 MB in the beginning and 136.3 MB in the end (delta: 31.5 MB). Free memory was 66.9 MB in the beginning and 90.1 MB in the end (delta: -23.3 MB). Peak memory consumption was 63.0 MB. Max. memory is 16.1 GB.
[2021-10-28 23:12:05,810 INFO L168 Benchmark]: Witness Printer took 61.19 ms. Allocated memory is still 136.3 MB. Free memory was 90.1 MB in the beginning and 87.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB.
[2021-10-28 23:12:05,813 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.15 ms. Allocated memory is still 104.9 MB. Free memory was 84.0 MB in the beginning and 83.9 MB in the end (delta: 65.7 kB). There was no memory consumed. Max. memory is 16.1 GB.
* CACSL2BoogieTranslator took 265.69 ms. Allocated memory is still 104.9 MB. Free memory was 67.0 MB in the beginning and 80.0 MB in the end (delta: -13.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB.
* Boogie Procedure Inliner took 35.78 ms. Allocated memory is still 104.9 MB. Free memory was 80.0 MB in the beginning and 78.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
* Boogie Preprocessor took 21.75 ms. Allocated memory is still 104.9 MB. Free memory was 78.5 MB in the beginning and 77.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
* RCFGBuilder took 342.77 ms. Allocated memory is still 104.9 MB. Free memory was 77.4 MB in the beginning and 67.3 MB in the end (delta: 10.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB.
* TraceAbstraction took 7578.26 ms. Allocated memory was 104.9 MB in the beginning and 136.3 MB in the end (delta: 31.5 MB). Free memory was 66.9 MB in the beginning and 90.1 MB in the end (delta: -23.3 MB). Peak memory consumption was 63.0 MB. Max. memory is 16.1 GB.
* Witness Printer took 61.19 ms. Allocated memory is still 136.3 MB. Free memory was 90.1 MB in the beginning and 87.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- PositiveResult [Line: 15]: call to reach_error is unreachable
For all program executions holds that call to reach_error is unreachable at this location
- PositiveResult [Line: 15]: call to reach_error is unreachable
For all program executions holds that call to reach_error is unreachable at this location
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 1 procedures, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 7.4s, OverallIterations: 6, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 74 SDtfs, 183 SDslu, 127 SDs, 0 SdLazy, 363 SolverSat, 71 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 100 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=5, InterpolantAutomatonStates: 47, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 17 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 14 NumberOfFragments, 313 HoareAnnotationTreeSize, 4 FomulaSimplifications, 126 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 4 FomulaSimplificationsInter, 42 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 89 NumberOfCodeBlocks, 89 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 83 ConstructedInterpolants, 0 QuantifiedInterpolants, 814 SizeOfPredicates, 43 NumberOfNonLiveVariables, 396 ConjunctsInSsa, 124 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 0/13 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
- AllSpecificationsHoldResult: All specifications hold
2 specifications checked. All of them hold
- InvariantResult [Line: 36]: Loop Invariant
Derived loop invariant: (((((((((((cond == 1 && 1 <= cond) && a <= 2) && 1 <= b / 2 % 2) && x == 4 * a) && b <= 2) && z == 2 * a) && 1 <= b) && y == (-1 + b / 2) / 2) && 0 <= a) || (((((((((z == 0 && !(b % 2 == 1)) && cond == 1) && x == 2 * a) && a <= 2) && y == b / 2) && 1 == cond) && b <= 2) && 1 <= b) && 0 <= a)) || (((((((((cond == 1 && x == 2 * a) && 1 <= cond) && a <= 2) && b <= 2) && a == z) && 1 <= b) && 1 <= b % 2) && 0 <= a) && y == (-1 + b) / 2)) || ((((((((cond == 1 && a * b == z + x * y) && a == x) && a <= 2) && 1 == cond) && b <= 2) && 1 <= b) && 0 <= a) && b == y)
- InvariantResult [Line: 34]: Loop Invariant
Derived loop invariant: (((((((((((cond == 1 && 1 <= cond) && a <= 2) && 1 <= b / 2 % 2) && x == 4 * a) && b <= 2) && z == 2 * a) && 1 <= b) && y == (-1 + b / 2) / 2) && 0 <= a) || (((((((((z == 0 && !(b % 2 == 1)) && cond == 1) && x == 2 * a) && 1 <= cond) && a <= 2) && y == b / 2) && b <= 2) && 1 <= b) && 0 <= a)) || (((((((((cond == 1 && x == 2 * a) && 1 <= cond) && a <= 2) && b <= 2) && a == z) && 1 <= b) && 1 <= b % 2) && 0 <= a) && y == (-1 + b) / 2)) || (((((((cond == 1 && a * b == z + x * y) && a == x) && a <= 2) && b <= 2) && 1 <= b) && 0 <= a) && b == y)
- InvariantResult [Line: 12]: Loop Invariant
Derived loop invariant: 1
- InvariantResult [Line: 20]: Loop Invariant
Derived loop invariant: 1
RESULT: Ultimate proved your program to be correct!
[2021-10-28 23:12:05,838 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684484ff-f05e-4349-8128-4e08068a3279/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...