./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound20.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_c785ee3c-18b8-4266-929f-7628dba6c303/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c785ee3c-18b8-4266-929f-7628dba6c303/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_c785ee3c-18b8-4266-929f-7628dba6c303/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c785ee3c-18b8-4266-929f-7628dba6c303/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c785ee3c-18b8-4266-929f-7628dba6c303/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_c785ee3c-18b8-4266-929f-7628dba6c303/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 5343b340ea8da46bc6acd6408dd3dbd3223330cf8901c5f3b9950638a460ce9a
............................................................................................................................................................................................................................................................................................................................................................................................................................................
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 23:19:58,664 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-10-28 23:19:58,667 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-10-28 23:19:58,705 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-10-28 23:19:58,706 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-10-28 23:19:58,708 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-10-28 23:19:58,710 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-10-28 23:19:58,714 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-10-28 23:19:58,717 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-10-28 23:19:58,719 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-10-28 23:19:58,722 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-10-28 23:19:58,724 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-10-28 23:19:58,725 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-10-28 23:19:58,735 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-10-28 23:19:58,738 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-10-28 23:19:58,741 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-10-28 23:19:58,743 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-10-28 23:19:58,748 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-10-28 23:19:58,756 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-10-28 23:19:58,760 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-10-28 23:19:58,767 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-10-28 23:19:58,770 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-10-28 23:19:58,772 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-10-28 23:19:58,774 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-10-28 23:19:58,782 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-10-28 23:19:58,782 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-10-28 23:19:58,783 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-10-28 23:19:58,789 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-10-28 23:19:58,793 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-10-28 23:19:58,794 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-10-28 23:19:58,796 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-10-28 23:19:58,797 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-10-28 23:19:58,799 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-10-28 23:19:58,801 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2021-10-28 23:19:58,803 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-10-28 23:19:58,804 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2021-10-28 23:19:58,805 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-10-28 23:19:58,806 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-10-28 23:19:58,806 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2021-10-28 23:19:58,807 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2021-10-28 23:19:58,809 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-10-28 23:19:58,810 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c785ee3c-18b8-4266-929f-7628dba6c303/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf
[2021-10-28 23:19:58,862 INFO L113 SettingsManager]: Loading preferences was successful
[2021-10-28 23:19:58,863 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-10-28 23:19:58,864 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-10-28 23:19:58,864 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-10-28 23:19:58,866 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-10-28 23:19:58,866 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2021-10-28 23:19:58,866 INFO L138 SettingsManager]: * Use SBE=true
[2021-10-28 23:19:58,867 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-10-28 23:19:58,867 INFO L138 SettingsManager]: * sizeof long=4
[2021-10-28 23:19:58,868 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2021-10-28 23:19:58,869 INFO L138 SettingsManager]: * sizeof POINTER=4
[2021-10-28 23:19:58,869 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-10-28 23:19:58,869 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2021-10-28 23:19:58,869 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-10-28 23:19:58,870 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2021-10-28 23:19:58,870 INFO L138 SettingsManager]: * sizeof long double=12
[2021-10-28 23:19:58,870 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2021-10-28 23:19:58,870 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-10-28 23:19:58,870 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2021-10-28 23:19:58,871 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-10-28 23:19:58,871 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-10-28 23:19:58,871 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2021-10-28 23:19:58,871 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-10-28 23:19:58,872 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-10-28 23:19:58,872 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2021-10-28 23:19:58,872 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-10-28 23:19:58,872 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2021-10-28 23:19:58,872 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-10-28 23:19:58,873 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF
[2021-10-28 23:19:58,873 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2021-10-28 23:19:58,873 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-10-28 23:19:58,873 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2021-10-28 23:19:58,873 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_c785ee3c-18b8-4266-929f-7628dba6c303/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c785ee3c-18b8-4266-929f-7628dba6c303/bin/uautomizer-GMMbpWq8iD
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5343b340ea8da46bc6acd6408dd3dbd3223330cf8901c5f3b9950638a460ce9a
[2021-10-28 23:19:59,238 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-10-28 23:19:59,258 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-10-28 23:19:59,261 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-10-28 23:19:59,262 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-10-28 23:19:59,263 INFO L275 PluginConnector]: CDTParser initialized
[2021-10-28 23:19:59,264 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c785ee3c-18b8-4266-929f-7628dba6c303/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound20.c
[2021-10-28 23:19:59,341 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c785ee3c-18b8-4266-929f-7628dba6c303/bin/uautomizer-GMMbpWq8iD/data/0a7471703/e95c38b6028943d2a41887975267dd5d/FLAG6c41ba370
[2021-10-28 23:19:59,958 INFO L306 CDTParser]: Found 1 translation units.
[2021-10-28 23:19:59,962 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c785ee3c-18b8-4266-929f-7628dba6c303/sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound20.c
[2021-10-28 23:19:59,976 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c785ee3c-18b8-4266-929f-7628dba6c303/bin/uautomizer-GMMbpWq8iD/data/0a7471703/e95c38b6028943d2a41887975267dd5d/FLAG6c41ba370
[2021-10-28 23:20:00,327 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c785ee3c-18b8-4266-929f-7628dba6c303/bin/uautomizer-GMMbpWq8iD/data/0a7471703/e95c38b6028943d2a41887975267dd5d
[2021-10-28 23:20:00,331 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-10-28 23:20:00,333 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2021-10-28 23:20:00,336 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-10-28 23:20:00,336 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-10-28 23:20:00,341 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-10-28 23:20:00,342 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:20:00" (1/1) ...
[2021-10-28 23:20:00,344 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39c34f0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:20:00, skipping insertion in model container
[2021-10-28 23:20:00,344 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:20:00" (1/1) ...
[2021-10-28 23:20:00,354 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-10-28 23:20:00,372 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-10-28 23:20:00,598 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_c785ee3c-18b8-4266-929f-7628dba6c303/sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound20.c[535,548]
[2021-10-28 23:20:00,622 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-10-28 23:20:00,634 INFO L203 MainTranslator]: Completed pre-run
[2021-10-28 23:20:00,652 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_c785ee3c-18b8-4266-929f-7628dba6c303/sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound20.c[535,548]
[2021-10-28 23:20:00,665 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-10-28 23:20:00,683 INFO L208 MainTranslator]: Completed translation
[2021-10-28 23:20:00,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:20:00 WrapperNode
[2021-10-28 23:20:00,683 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-10-28 23:20:00,685 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-10-28 23:20:00,685 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-10-28 23:20:00,685 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2021-10-28 23:20:00,695 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:20:00" (1/1) ...
[2021-10-28 23:20:00,704 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:20:00" (1/1) ...
[2021-10-28 23:20:00,751 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-10-28 23:20:00,753 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-10-28 23:20:00,753 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-10-28 23:20:00,754 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-10-28 23:20:00,764 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:20:00" (1/1) ...
[2021-10-28 23:20:00,764 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:20:00" (1/1) ...
[2021-10-28 23:20:00,766 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:20:00" (1/1) ...
[2021-10-28 23:20:00,767 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:20:00" (1/1) ...
[2021-10-28 23:20:00,786 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:20:00" (1/1) ...
[2021-10-28 23:20:00,791 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:20:00" (1/1) ...
[2021-10-28 23:20:00,793 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:20:00" (1/1) ...
[2021-10-28 23:20:00,796 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-10-28 23:20:00,798 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-10-28 23:20:00,798 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-10-28 23:20:00,798 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-10-28 23:20:00,811 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:20:00" (1/1) ...
[2021-10-28 23:20:00,823 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-10-28 23:20:00,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c785ee3c-18b8-4266-929f-7628dba6c303/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:20:00,858 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c785ee3c-18b8-4266-929f-7628dba6c303/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2021-10-28 23:20:00,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c785ee3c-18b8-4266-929f-7628dba6c303/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2021-10-28 23:20:00,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2021-10-28 23:20:00,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-10-28 23:20:00,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-10-28 23:20:00,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-10-28 23:20:01,175 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-10-28 23:20:01,175 INFO L299 CfgBuilder]: Removed 23 assume(true) statements.
[2021-10-28 23:20:01,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:20:01 BoogieIcfgContainer
[2021-10-28 23:20:01,178 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-10-28 23:20:01,180 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-10-28 23:20:01,180 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2021-10-28 23:20:01,184 INFO L275 PluginConnector]: TraceAbstraction initialized
[2021-10-28 23:20:01,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:20:00" (1/3) ...
[2021-10-28 23:20:01,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18dbbcb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:20:01, skipping insertion in model container
[2021-10-28 23:20:01,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:20:00" (2/3) ...
[2021-10-28 23:20:01,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18dbbcb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:20:01, skipping insertion in model container
[2021-10-28 23:20:01,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:20:01" (3/3) ...
[2021-10-28 23:20:01,188 INFO L111 eAbstractionObserver]: Analyzing ICFG fermat1-ll_valuebound20.c
[2021-10-28 23:20:01,194 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-10-28 23:20:01,209 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations.
[2021-10-28 23:20:01,293 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-10-28 23:20:01,300 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 23:20:01,300 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations.
[2021-10-28 23:20:01,317 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 28 states have (on average 1.75) internal successors, (49), 32 states have internal predecessors, (49), 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 23:20:01,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2021-10-28 23:20:01,323 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:20:01,324 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 23:20:01,325 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2021-10-28 23:20:01,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:20:01,331 INFO L85 PathProgramCache]: Analyzing trace with hash -144177098, now seen corresponding path program 1 times
[2021-10-28 23:20:01,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:20:01,342 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684595202]
[2021-10-28 23:20:01,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:20:01,343 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:20:01,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:20:01,501 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 23:20:01,501 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:20:01,502 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684595202]
[2021-10-28 23:20:01,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684595202] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:20:01,503 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:20:01,504 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-10-28 23:20:01,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462316702]
[2021-10-28 23:20:01,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2021-10-28 23:20:01,511 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:20:01,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2021-10-28 23:20:01,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2021-10-28 23:20:01,540 INFO L87 Difference]: Start difference. First operand has 33 states, 28 states have (on average 1.75) internal successors, (49), 32 states have internal predecessors, (49), 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 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:20:01,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:20:01,558 INFO L93 Difference]: Finished difference Result 63 states and 94 transitions.
[2021-10-28 23:20:01,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2021-10-28 23:20:01,560 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13
[2021-10-28 23:20:01,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:20:01,569 INFO L225 Difference]: With dead ends: 63
[2021-10-28 23:20:01,569 INFO L226 Difference]: Without dead ends: 29
[2021-10-28 23:20:01,572 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 23:20:01,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states.
[2021-10-28 23:20:01,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29.
[2021-10-28 23:20:01,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 25 states have (on average 1.24) internal successors, (31), 28 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 23:20:01,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions.
[2021-10-28 23:20:01,606 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 13
[2021-10-28 23:20:01,607 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:20:01,607 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions.
[2021-10-28 23:20:01,607 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:20:01,608 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions.
[2021-10-28 23:20:01,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2021-10-28 23:20:01,608 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:20:01,609 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 23:20:01,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-10-28 23:20:01,609 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2021-10-28 23:20:01,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:20:01,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1281167042, now seen corresponding path program 1 times
[2021-10-28 23:20:01,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:20:01,652 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799847108]
[2021-10-28 23:20:01,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:20:01,652 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:20:01,713 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2021-10-28 23:20:01,714 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [265126346]
[2021-10-28 23:20:01,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:20:01,714 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 23:20:01,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c785ee3c-18b8-4266-929f-7628dba6c303/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:20:01,722 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c785ee3c-18b8-4266-929f-7628dba6c303/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-10-28 23:20:01,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c785ee3c-18b8-4266-929f-7628dba6c303/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2021-10-28 23:20:01,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:20:01,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 11 conjunts are in the unsatisfiable core
[2021-10-28 23:20:01,820 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:20:02,145 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 23:20:02,146 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:20:02,146 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799847108]
[2021-10-28 23:20:02,146 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown
[2021-10-28 23:20:02,146 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [265126346]
[2021-10-28 23:20:02,147 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [265126346] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:20:02,147 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:20:02,147 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2021-10-28 23:20:02,148 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88426606]
[2021-10-28 23:20:02,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-10-28 23:20:02,149 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:20:02,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-10-28 23:20:02,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-10-28 23:20:02,151 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:20:04,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:20:04,315 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions.
[2021-10-28 23:20:04,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2021-10-28 23:20:04,317 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13
[2021-10-28 23:20:04,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:20:04,318 INFO L225 Difference]: With dead ends: 39
[2021-10-28 23:20:04,318 INFO L226 Difference]: Without dead ends: 37
[2021-10-28 23:20:04,319 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 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 23:20:04,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states.
[2021-10-28 23:20:04,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 31.
[2021-10-28 23:20:04,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 30 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:20:04,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions.
[2021-10-28 23:20:04,326 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 13
[2021-10-28 23:20:04,327 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:20:04,327 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions.
[2021-10-28 23:20:04,327 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:20:04,327 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions.
[2021-10-28 23:20:04,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2021-10-28 23:20:04,328 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:20:04,328 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 23:20:04,378 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c785ee3c-18b8-4266-929f-7628dba6c303/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2021-10-28 23:20:04,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c785ee3c-18b8-4266-929f-7628dba6c303/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 23:20:04,550 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2021-10-28 23:20:04,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:20:04,552 INFO L85 PathProgramCache]: Analyzing trace with hash 2131977584, now seen corresponding path program 1 times
[2021-10-28 23:20:04,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:20:04,552 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213542556]
[2021-10-28 23:20:04,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:20:04,553 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:20:04,583 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2021-10-28 23:20:04,583 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [927382529]
[2021-10-28 23:20:04,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:20:04,584 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 23:20:04,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c785ee3c-18b8-4266-929f-7628dba6c303/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:20:04,595 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c785ee3c-18b8-4266-929f-7628dba6c303/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-10-28 23:20:04,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c785ee3c-18b8-4266-929f-7628dba6c303/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2021-10-28 23:20:04,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:20:04,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 10 conjunts are in the unsatisfiable core
[2021-10-28 23:20:04,664 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:20:04,886 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 23:20:04,887 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:20:04,887 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213542556]
[2021-10-28 23:20:04,887 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown
[2021-10-28 23:20:04,888 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [927382529]
[2021-10-28 23:20:04,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [927382529] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:20:04,893 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:20:04,895 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2021-10-28 23:20:04,895 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203834012]
[2021-10-28 23:20:04,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2021-10-28 23:20:04,896 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:20:04,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-10-28 23:20:04,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2021-10-28 23:20:04,900 INFO L87 Difference]: Start difference. First operand 31 states and 33 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 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 23:20:05,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:20:05,181 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions.
[2021-10-28 23:20:05,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-10-28 23:20:05,182 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 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 23:20:05,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:20:05,183 INFO L225 Difference]: With dead ends: 31
[2021-10-28 23:20:05,183 INFO L226 Difference]: Without dead ends: 0
[2021-10-28 23:20:05,186 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56
[2021-10-28 23:20:05,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2021-10-28 23:20:05,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2021-10-28 23:20:05,187 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 23:20:05,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2021-10-28 23:20:05,188 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16
[2021-10-28 23:20:05,188 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:20:05,188 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2021-10-28 23:20:05,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 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 23:20:05,189 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2021-10-28 23:20:05,189 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2021-10-28 23:20:05,193 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION
[2021-10-28 23:20:05,196 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION
[2021-10-28 23:20:05,197 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION
[2021-10-28 23:20:05,197 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION
[2021-10-28 23:20:05,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c785ee3c-18b8-4266-929f-7628dba6c303/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2021-10-28 23:20:05,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c785ee3c-18b8-4266-929f-7628dba6c303/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 23:20:05,428 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2021-10-28 23:20:05,431 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms
[2021-10-28 23:20:05,434 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms
[2021-10-28 23:20:05,439 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms
[2021-10-28 23:20:05,441 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms
[2021-10-28 23:20:05,443 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms
[2021-10-28 23:20:05,443 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms
[2021-10-28 23:20:05,444 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms
[2021-10-28 23:20:10,083 INFO L857 garLoopResultBuilder]: For program point L35-2(lines 35 55) no Hoare annotation was computed.
[2021-10-28 23:20:10,083 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed.
[2021-10-28 23:20:10,083 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed.
[2021-10-28 23:20:10,083 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2021-10-28 23:20:10,084 INFO L857 garLoopResultBuilder]: For program point L12(lines 12 15) no Hoare annotation was computed.
[2021-10-28 23:20:10,084 INFO L853 garLoopResultBuilder]: At program point L12-2(lines 37 38) the Hoare annotation is: (and (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= (+ (* 2 ULTIMATE.start_main_~u~0) (* 4 ULTIMATE.start_main_~A~0) (* ULTIMATE.start_main_~v~0 ULTIMATE.start_main_~v~0) (* 4 ULTIMATE.start_main_~r~0)) (+ (* ULTIMATE.start_main_~u~0 ULTIMATE.start_main_~u~0) (* 2 ULTIMATE.start_main_~v~0))))
[2021-10-28 23:20:10,084 INFO L857 garLoopResultBuilder]: For program point L12-3(lines 12 15) no Hoare annotation was computed.
[2021-10-28 23:20:10,084 INFO L853 garLoopResultBuilder]: At program point L12-5(lines 42 43) the Hoare annotation is: (and (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= (+ (* 2 ULTIMATE.start_main_~u~0) (* 4 ULTIMATE.start_main_~A~0) (* ULTIMATE.start_main_~v~0 ULTIMATE.start_main_~v~0) (* 4 ULTIMATE.start_main_~r~0)) (+ (* ULTIMATE.start_main_~u~0 ULTIMATE.start_main_~u~0) (* 2 ULTIMATE.start_main_~v~0))))
[2021-10-28 23:20:10,085 INFO L857 garLoopResultBuilder]: For program point L12-6(lines 12 15) no Hoare annotation was computed.
[2021-10-28 23:20:10,085 INFO L853 garLoopResultBuilder]: At program point L12-8(lines 50 51) the Hoare annotation is: (and (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= (+ (* 2 ULTIMATE.start_main_~u~0) (* 4 ULTIMATE.start_main_~A~0) (* ULTIMATE.start_main_~v~0 ULTIMATE.start_main_~v~0) (* 4 ULTIMATE.start_main_~r~0)) (+ (* ULTIMATE.start_main_~u~0 ULTIMATE.start_main_~u~0) (* 2 ULTIMATE.start_main_~v~0))))
[2021-10-28 23:20:10,085 INFO L857 garLoopResultBuilder]: For program point L12-9(lines 12 15) no Hoare annotation was computed.
[2021-10-28 23:20:10,085 INFO L860 garLoopResultBuilder]: At program point L12-11(lines 11 17) the Hoare annotation is: true
[2021-10-28 23:20:10,086 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed.
[2021-10-28 23:20:10,086 INFO L857 garLoopResultBuilder]: For program point L13(lines 13 14) no Hoare annotation was computed.
[2021-10-28 23:20:10,086 INFO L857 garLoopResultBuilder]: For program point L13-1(lines 13 14) no Hoare annotation was computed.
[2021-10-28 23:20:10,086 INFO L857 garLoopResultBuilder]: For program point L13-2(lines 13 14) no Hoare annotation was computed.
[2021-10-28 23:20:10,087 INFO L857 garLoopResultBuilder]: For program point L13-3(lines 13 14) no Hoare annotation was computed.
[2021-10-28 23:20:10,087 INFO L857 garLoopResultBuilder]: For program point L48-1(lines 35 55) no Hoare annotation was computed.
[2021-10-28 23:20:10,087 INFO L853 garLoopResultBuilder]: At program point L48-2(lines 35 55) the Hoare annotation is: (let ((.cse0 (= (+ (* 2 ULTIMATE.start_main_~u~0) (* 4 ULTIMATE.start_main_~A~0) (* ULTIMATE.start_main_~v~0 ULTIMATE.start_main_~v~0) (* 4 ULTIMATE.start_main_~r~0)) (+ (* ULTIMATE.start_main_~u~0 ULTIMATE.start_main_~u~0) (* 2 ULTIMATE.start_main_~v~0))))) (or (and (= 1 ULTIMATE.start___VERIFIER_assert_~cond) .cse0) (and (= (mod (+ ULTIMATE.start_main_~u~0 1) (- 2)) 0) (= ULTIMATE.start_main_~v~0 1) .cse0)))
[2021-10-28 23:20:10,087 INFO L853 garLoopResultBuilder]: At program point L40-2(lines 40 46) the Hoare annotation is: (and (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= (+ (* 2 ULTIMATE.start_main_~u~0) (* 4 ULTIMATE.start_main_~A~0) (* ULTIMATE.start_main_~v~0 ULTIMATE.start_main_~v~0) (* 4 ULTIMATE.start_main_~r~0)) (+ (* ULTIMATE.start_main_~u~0 ULTIMATE.start_main_~u~0) (* 2 ULTIMATE.start_main_~v~0))))
[2021-10-28 23:20:10,088 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed.
[2021-10-28 23:20:10,088 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed.
[2021-10-28 23:20:10,088 INFO L857 garLoopResultBuilder]: For program point L8(lines 8 10) no Hoare annotation was computed.
[2021-10-28 23:20:10,088 INFO L857 garLoopResultBuilder]: For program point L8-1(lines 8 10) no Hoare annotation was computed.
[2021-10-28 23:20:10,089 INFO L857 garLoopResultBuilder]: For program point L8-2(lines 8 10) no Hoare annotation was computed.
[2021-10-28 23:20:10,089 INFO L857 garLoopResultBuilder]: For program point L8-3(lines 8 10) no Hoare annotation was computed.
[2021-10-28 23:20:10,089 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2021-10-28 23:20:10,089 INFO L860 garLoopResultBuilder]: At program point L58(lines 19 59) the Hoare annotation is: true
[2021-10-28 23:20:10,090 INFO L857 garLoopResultBuilder]: For program point L9(line 9) no Hoare annotation was computed.
[2021-10-28 23:20:10,090 INFO L857 garLoopResultBuilder]: For program point L9-2(line 9) no Hoare annotation was computed.
[2021-10-28 23:20:10,090 INFO L857 garLoopResultBuilder]: For program point L9-4(line 9) no Hoare annotation was computed.
[2021-10-28 23:20:10,090 INFO L857 garLoopResultBuilder]: For program point L9-6(line 9) no Hoare annotation was computed.
[2021-10-28 23:20:10,091 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed.
[2021-10-28 23:20:10,094 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2021-10-28 23:20:10,096 INFO L179 ceAbstractionStarter]: Computing trace abstraction results
[2021-10-28 23:20:10,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:20:10 BoogieIcfgContainer
[2021-10-28 23:20:10,124 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-10-28 23:20:10,125 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2021-10-28 23:20:10,126 INFO L271 PluginConnector]: Initializing Witness Printer...
[2021-10-28 23:20:10,126 INFO L275 PluginConnector]: Witness Printer initialized
[2021-10-28 23:20:10,126 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:20:01" (3/4) ...
[2021-10-28 23:20:10,132 INFO L137 WitnessPrinter]: Generating witness for correct program
[2021-10-28 23:20:10,146 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges
[2021-10-28 23:20:10,147 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges
[2021-10-28 23:20:10,147 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2021-10-28 23:20:10,147 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2021-10-28 23:20:10,225 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c785ee3c-18b8-4266-929f-7628dba6c303/bin/uautomizer-GMMbpWq8iD/witness.graphml
[2021-10-28 23:20:10,226 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2021-10-28 23:20:10,227 INFO L168 Benchmark]: Toolchain (without parser) took 9893.14 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 66.2 MB in the beginning and 80.7 MB in the end (delta: -14.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 16.1 GB.
[2021-10-28 23:20:10,228 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 75.5 MB. Free memory was 36.3 MB in the beginning and 36.2 MB in the end (delta: 42.0 kB). There was no memory consumed. Max. memory is 16.1 GB.
[2021-10-28 23:20:10,228 INFO L168 Benchmark]: CACSL2BoogieTranslator took 347.89 ms. Allocated memory is still 98.6 MB. Free memory was 66.0 MB in the beginning and 74.8 MB in the end (delta: -8.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB.
[2021-10-28 23:20:10,228 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.86 ms. Allocated memory is still 98.6 MB. Free memory was 74.8 MB in the beginning and 73.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
[2021-10-28 23:20:10,229 INFO L168 Benchmark]: Boogie Preprocessor took 43.52 ms. Allocated memory is still 98.6 MB. Free memory was 73.2 MB in the beginning and 72.2 MB in the end (delta: 984.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
[2021-10-28 23:20:10,229 INFO L168 Benchmark]: RCFGBuilder took 380.44 ms. Allocated memory is still 98.6 MB. Free memory was 71.8 MB in the beginning and 61.3 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB.
[2021-10-28 23:20:10,230 INFO L168 Benchmark]: TraceAbstraction took 8944.54 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 60.6 MB in the beginning and 84.2 MB in the end (delta: -23.6 MB). There was no memory consumed. Max. memory is 16.1 GB.
[2021-10-28 23:20:10,230 INFO L168 Benchmark]: Witness Printer took 100.63 ms. Allocated memory is still 119.5 MB. Free memory was 84.1 MB in the beginning and 80.7 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB.
[2021-10-28 23:20:10,233 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.28 ms. Allocated memory is still 75.5 MB. Free memory was 36.3 MB in the beginning and 36.2 MB in the end (delta: 42.0 kB). There was no memory consumed. Max. memory is 16.1 GB.
* CACSL2BoogieTranslator took 347.89 ms. Allocated memory is still 98.6 MB. Free memory was 66.0 MB in the beginning and 74.8 MB in the end (delta: -8.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB.
* Boogie Procedure Inliner took 65.86 ms. Allocated memory is still 98.6 MB. Free memory was 74.8 MB in the beginning and 73.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
* Boogie Preprocessor took 43.52 ms. Allocated memory is still 98.6 MB. Free memory was 73.2 MB in the beginning and 72.2 MB in the end (delta: 984.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
* RCFGBuilder took 380.44 ms. Allocated memory is still 98.6 MB. Free memory was 71.8 MB in the beginning and 61.3 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB.
* TraceAbstraction took 8944.54 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 60.6 MB in the beginning and 84.2 MB in the end (delta: -23.6 MB). There was no memory consumed. Max. memory is 16.1 GB.
* Witness Printer took 100.63 ms. Allocated memory is still 119.5 MB. Free memory was 84.1 MB in the beginning and 80.7 MB in the end (delta: 3.5 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: 14]: call to reach_error is unreachable
For all program executions holds that call to reach_error is unreachable at this location
- PositiveResult [Line: 14]: call to reach_error is unreachable
For all program executions holds that call to reach_error is unreachable at this location
- PositiveResult [Line: 14]: call to reach_error is unreachable
For all program executions holds that call to reach_error is unreachable at this location
- PositiveResult [Line: 14]: 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, 33 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 8.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.6s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 70 SDtfs, 30 SDslu, 65 SDs, 0 SdLazy, 64 SolverSat, 21 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 2.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, InterpolantAutomatonStates: 11, 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, 3 MinimizatonAttempts, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 15 NumberOfFragments, 160 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 19 FormulaSimplificationTreeSizeReductionInter, 4.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 160 SizeOfPredicates, 13 NumberOfNonLiveVariables, 151 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 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
4 specifications checked. All of them hold
- InvariantResult [Line: 37]: Loop Invariant
Derived loop invariant: 1 == cond && 2 * u + 4 * A + v * v + 4 * r == u * u + 2 * v
- InvariantResult [Line: 35]: Loop Invariant
Derived loop invariant: (1 == cond && 2 * u + 4 * A + v * v + 4 * r == u * u + 2 * v) || (((u + 1) % -2 == 0 && v == 1) && 2 * u + 4 * A + v * v + 4 * r == u * u + 2 * v)
- InvariantResult [Line: 40]: Loop Invariant
Derived loop invariant: 1 == cond && 2 * u + 4 * A + v * v + 4 * r == u * u + 2 * v
- InvariantResult [Line: 50]: Loop Invariant
Derived loop invariant: 1 == cond && 2 * u + 4 * A + v * v + 4 * r == u * u + 2 * v
- InvariantResult [Line: 11]: Loop Invariant
Derived loop invariant: 1
- InvariantResult [Line: 19]: Loop Invariant
Derived loop invariant: 1
- InvariantResult [Line: 42]: Loop Invariant
Derived loop invariant: 1 == cond && 2 * u + 4 * A + v * v + 4 * r == u * u + 2 * v
RESULT: Ultimate proved your program to be correct!
[2021-10-28 23:20:10,266 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c785ee3c-18b8-4266-929f-7628dba6c303/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...